Dual Master's Degrees in Library Science: Is a Joint MLIS Right for You?

Compare dual MLIS combinations, credit savings, career outcomes, and top programs to decide if a joint degree fits your goals.

By Meredith SimmonsReviewed by MLIS Academic Advisory TeamUpdated June 11, 202623 min read
Dual MLIS Degrees: Best Combinations, Credits & Programs

What you’ll learn in this article…

  • Dual MLIS programs typically save 12 to 18 credits compared to completing two separate master's degrees.
  • MLIS paired with a JD, MBA, or MSW opens paths to roles earning $75,000 to $100,000 or more annually.
  • ALA accreditation must apply to the MLIS component specifically, not just the partner degree or the university overall.
  • Online delivery is common for the MLIS portion, but the second degree in the pairing may require on-campus coursework.

Completing two separate master's degrees often requires 60 to 72 credits and three or more years of full-time study. A coordinated dual MLIS program cuts that by 12 to 18 credits and typically shaves a full year off the timeline by letting courses count toward both degrees simultaneously.

The trade-off is focus. These programs pair library science with law, business, social work, or history, but they demand more intensity than a single MLIS and make sense only when dual expertise directly influences hiring and salary. Understanding the difference between MLS and MLIS degrees can help clarify what the library science side of any pairing actually entails.

Graduates with an MLIS/JD or MLIS/MBA frequently move into specialized roles with pay well above the librarian median, but the path isn't for everyone. Knowing which combinations yield a measurable return, and which add cost without clear advantage, is the first step.

What Is a Dual MLIS Degree?

A dual MLIS degree is a single, coordinated graduate program in which a student pursues a Master of Library and Information Science alongside a second master's degree, allowing courses to count toward both credentials simultaneously. Unlike completing two entirely separate programs (often called a double degree), a dual-degree structure is designed from the start to overlap coursework, reducing the total number of credits needed and shortening the time to graduation. If you are still weighing the basics of the degree itself, our MLIS pathways and programs guide covers foundational options before you layer on a second credential.

How Shared Credits Work

Most dual MLIS programs permit 9 to 18 credits to satisfy requirements for both degrees. For example, an MLIS requires roughly 36 to 42 credits, and a typical second master's adds another 30 to 48 credits. If pursued separately, a student might need 70 to 90 total credits. In a dual-degree framework, the shared courses trim that load by 15 to 25 percent, often bringing the combined requirement down to 54 to 72 credits. The exact overlap depends on the partner program and how closely the curricula align.

Two Distinct Diplomas, Not a Hybrid

Graduates of a dual MLIS program receive two separate master's degrees upon completion, not a single blended credential. You will hold both an MLIS and, for instance, an MBA, MSW, MA, or JD, each conferred by its respective department or school. Employers and professional licensing boards recognize each degree independently, which preserves the full value of both credentials in the job market.

Applying to Both Departments

Dual-degree candidates typically submit applications to both academic units and must meet the admission standards of each. That means preparing a statement of purpose tailored to library science, a second statement (or addendum) for the partner program, and gathering letters of recommendation that speak to both fields. Some universities offer a streamlined application portal for dual students, but admission committees in each department review files separately. Meeting the threshold for one program does not guarantee acceptance into the other, so strong qualifications across both disciplines are essential.

Most Common Dual MLIS Degree Combinations

Dual MLIS programs cluster around a handful of partner disciplines that share overlapping skill sets, research methods, or employment pathways with library science. The most widely offered combinations pair MLIS with degrees in information systems, public administration, history, law, and social work, though availability varies significantly by institution and geographic region.

MLIS and Information Systems (MIS)

The MLIS/MIS pairing is one of the most technically oriented options and suits students planning careers in data curation, digital archives, or information architecture. Indiana University Bloomington offers an ALA-accredited MLS/MIS dual degree that requires 57 credits and is delivered on-campus.1 This combination builds fluency in database design, systems analysis, and metadata standards alongside traditional library management, positioning graduates for roles in academic libraries, corporate information centers, and tech-sector knowledge management.

MLIS and History

History and library science share natural curricular overlap in archival theory, preservation, and research methodology. The University of Maryland, College Park offers an ALA-accredited MLIS/MA History dual degree on-campus, targeting students interested in special collections, rare books, and historical archives.2 Loyola University Chicago and Dominican University partner to deliver a hybrid MA Public History/MLIS program that is also ALA-accredited, allowing students to complete coursework across both institutions and integrate public history fieldwork with library practicum experiences.3

MLIS and English

The University of South Carolina offers an ALA-accredited MLIS/MA English dual degree on-campus, designed for students pursuing academic librarianship, reference services, or literary collections management.4 This pairing emphasizes critical reading, composition pedagogy, and humanities scholarship, equipping graduates to serve as subject specialists in university libraries or to support research services in humanities-focused institutions.

MLIS and Public Administration (MPA)

For students interested in public library leadership, government information services, or policy advocacy, the University of Missouri delivers an ALA-accredited MLIS/MPA dual degree entirely online. This combination integrates coursework in budgeting, public management, and organizational behavior with library administration and community programming, preparing graduates for director-level roles in municipal and county library systems. Graduates often find that the MPA component significantly boosts their library science salary potential compared to an MLIS alone.

Less Common but Available Pairings

The University of Arizona offers a dual MLS/MLIS program, an on-campus ALA-accredited option that allows students to specialize in law librarianship while earning both degrees.6 Other institutions may offer dual tracks with social work (MSW), business administration (MBA), or education (M.Ed.), though these tend to be institution-specific and less widely advertised. As the evolution of libraries continues to reshape the profession, unconventional pairings are becoming more common. Students interested in less conventional combinations should contact admissions offices directly to inquire about custom dual-degree proposals or interdepartmental agreements.

Questions to Ask Yourself

Do you have a specific career role in mind that genuinely requires deep expertise in both librarianship and a second field?
Pursuing a dual degree without a clear job target can mean extra time and debt for credentials that may not pay off. Aligning the combination to a real-world position, such as law librarian or museum curator, maximizes its value.
Can you commit to 2.5-4 years of full-time study, or would completing one degree first offer more flexibility?
Dual programs lock you into a longer, intensive academic path. Earning an MLIS and later adding a second master's part-time while working may reduce financial strain and allow you to test career interests first.
Does your target employer or role explicitly value or require the second credential?
Some employers see dual degrees as a strong advantage, while others view them as redundant. Research job postings in your desired field to confirm that the extra qualification will have tangible hiring or salary benefits.

Dual MLIS vs. Single MLIS: Credits, Time, and Cost

The most common question prospective students ask about dual degrees is whether the extra time and tuition are worth it compared to earning a single MLIS. The answer depends on how many overlapping credits your program allows, how quickly you can move through coursework, and what the combined price tag looks like relative to earning two degrees separately.

How Credit Sharing Works

Dual degree programs save time and money by letting a set of credits count toward both degrees simultaneously. A standalone MLIS typically requires around 36 credits (the figure at the University of Pittsburgh for 2025 to 2026, for example).1 When you add a second master's or a JD, the dual program's total credit requirement is lower than the sum of the two degrees earned independently. At Pitt, the MLIS/JD dual track requires roughly 100 to 110 total credits, whereas completing the MLIS (36 credits) and a JD (around 88 credits) separately would total approximately 124 credits.1 That overlap of 14 to 24 shared credits translates directly into fewer semesters of tuition.

The exact number of shared credits varies by institution and combination. MBA pairings and MSW pairings at other schools tend to share 9 to 18 credits, while JD combinations often share more because both programs are longer. Students interested in the JD pairing specifically may want to explore law librarianship as a career path before committing.

Time to Completion

A standalone MLIS can be finished in 18 to 24 months of full-time study.1 A dual degree generally adds one to two years on top of that, depending on the second discipline. Using the University of Pittsburgh's MLIS/JD as a reference point, students should plan on roughly 48 months (four years) of full-time enrollment.1 By contrast, earning both degrees sequentially could take five to six years. Understanding the broader landscape of MLIS pathways and programs can help you benchmark these timelines against other options.

Total Cost Comparison

At the University of Pittsburgh, standalone MLIS tuition runs about $41,328 at a per-credit rate of $1,148.1 The MLIS/JD dual program's estimated total cost is $155,000 to $180,000, which reflects the higher per-credit rates that law school credits carry.1 While that figure is substantial, it is still meaningfully less than paying full standalone tuition for each degree.

Key Takeaways for Budgeting

  • Credit savings: Most dual programs eliminate 9 to 24 credits you would otherwise pay for twice.
  • Timeline: Expect three to four years for most dual combinations versus two or more extra years if you pursue each degree sequentially.
  • Tuition variability: The second degree's discipline drives most of the cost difference. JD and MBA pairings carry higher per-credit rates than MA or MSW pairings.
  • Financial aid: Many schools package aid across both programs, but verify whether scholarships or assistantships apply to the full dual curriculum or only to one component.

Before committing, request an itemized cost sheet from each program's admissions office so you can compare the dual total against the sum of both standalone programs at that same institution. Even modest credit sharing, say 12 credits at roughly $1,100 per credit, can save more than $13,000 in tuition alone.

Credit Savings at a Glance: Dual vs. Two Separate Degrees

One of the biggest advantages of a dual MLIS program is the credit overlap: courses that satisfy requirements in both degrees simultaneously. Here is how the math typically works when you compare earning two standalone master's degrees against completing a single integrated dual program.

Comparison of 72 to 108 total credits over 4 years for two separate degrees versus 54 to 90 credits over 2.5 to 3.5 years for a dual MLIS program, saving 12 to 18 credits

Career Paths by Dual Degree Combination

Employers increasingly view dual credentials as signals of specialized expertise, and certain library roles have evolved to expect candidates who bring complementary graduate training. Understanding which career paths align with specific dual degree pairings can help you invest your time and tuition strategically. For a broader look at where an MLIS can take you, explore MLIS alumni career paths.

MLIS/JD: Law Librarianship and Legal Information

The combination of library science and law opens doors to positions that often require or strongly prefer both degrees. Law librarian roles at academic institutions, law firms, and court systems typically expect candidates to hold a JD alongside their MLIS. Career paths include:

  • Law librarian: Research support for attorneys, judges, and law students in firm, court, or academic settings.
  • Legal information specialist: Managing databases, contracts, and regulatory filings for corporate legal departments.
  • Academic law library director: Leadership roles overseeing collections, services, and budgets at law school libraries.

This pairing commands higher salaries than either degree alone in legal research contexts, and the credential combination remains a standard expectation for advancement.

MLIS/MBA: Business Leadership and Competitive Intelligence

Adding business training to library credentials positions graduates for leadership roles that involve budgets, strategy, and organizational management. This combination suits professionals aiming for:

  • Corporate library director: Overseeing information services at consulting firms, financial institutions, or technology companies.
  • Competitive intelligence analyst: Gathering and synthesizing market research, patent filings, and industry data for strategic planning.
  • Information management consultant: Advising organizations on knowledge systems, taxonomy development, and data governance.

The MBA component proves particularly valuable for roles requiring profit-and-loss responsibility or cross-departmental leadership.

MLIS/MSW: Social Services and Community Health

Public libraries increasingly serve as community hubs for social services, creating demand for librarians trained in social work. This dual degree prepares graduates for:

  • Hospital or community health information specialist: Connecting patients and families with health literacy resources and support services.
  • Social services outreach librarian: Coordinating with community organizations to serve patrons experiencing homelessness, addiction, or mental health challenges.
  • Community resource navigator: Helping library users access government benefits, housing assistance, and crisis intervention.

Urban public library systems have added social worker positions in recent years, making this combination increasingly relevant.

MLIS/MA in Humanities: Archives and Special Collections

Pairing the MLIS with a master's in history, English, or digital humanities creates pathways into specialized academic and cultural heritage roles. Candidates interested in preservation work can learn more about archivist career requirements:

  • Archivist: Processing, preserving, and providing access to historical records and manuscripts.
  • Special collections curator: Building and managing rare book collections, institutional archives, or unique materials.
  • Digital humanities librarian: Supporting faculty research involving computational text analysis, mapping projects, or digital exhibits.
  • Subject-specialist academic librarian: Serving as liaison to humanities departments with deep disciplinary knowledge.

MLIS/MPA: Public Sector Leadership

The Master of Public Administration pairs well with library science for careers in government information and library system management:

  • Government documents librarian: Managing federal, state, and international government publications and data.
  • Policy research librarian: Supporting legislative staff, think tanks, or advocacy organizations with research services.
  • Library system administrator: Overseeing multi-branch public library systems with responsibility for budgets, personnel, and strategic planning.

This combination positions graduates for senior roles in public-sector libraries where understanding policy, funding cycles, and government operations proves essential. Many of these positions also draw on core library science careers competencies that the MLIS provides.

Salary Outlook for Dual MLIS Graduates

The table below shows national wage benchmarks for three occupations that dual MLIS graduates commonly enter: librarians and media collections specialists, the broader librarians/curators/archivists group (which includes archival and museum roles), and postsecondary library science educators. These figures come from the Bureau of Labor Statistics Occupational Employment and Wage Statistics and reflect occupational wages broadly, not specifically dual-degree holders. Because dual-degree graduates often qualify for specialized or managerial positions, their actual earnings tend to pull from the upper quartiles of these distributions rather than the median. Treat these numbers as a useful baseline, not a guarantee of what any individual graduate will earn.

OccupationTotal Employment25th Percentile SalaryMedian Salary75th Percentile SalaryMean SalaryProjected Job Growth (2024 to 2034)
Librarians and Media Collections Specialists131,830$50,920$64,320$80,640$69,1802% (about 3,000 to 4,000 new jobs)
Librarians, Curators, and Archivists (combined)238,010$40,410$57,100$74,800$60,220N/A
Archivists, Curators, and Museum WorkersN/AN/AN/AN/AN/A10% (about 3,000 to 4,000 new jobs)
Library Science Teachers, Postsecondary4,100$62,130$78,630$97,020$84,3201% (fewer than 1,000 new jobs)

Top-Paying States for Librarians and Archivists

Geography plays a significant role in librarian salaries, and dual-degree graduates who factor location into their career planning can maximize their earning potential. The table below ranks the top-paying states for librarians and media collections specialists by median annual wage, based on 2024 data from the Bureau of Labor Statistics Occupational Employment and Wage Statistics program. Notice that some high-paying states also employ large numbers of professionals, offering both strong compensation and robust job markets, while others pay well but have limited openings.

StateMedian Annual WageMean Annual Wage25th Percentile75th PercentileTotal Employment
Washington$94,400$91,280$70,240$108,3802,830
District of Columbia$93,740$94,300$76,770$107,040940
California$86,590$90,960$66,560$105,52010,030
Maryland$81,690$85,520$64,440$101,6203,270
Nevada$79,710$76,480$63,970$82,700650
New Jersey$79,380$81,250$62,820$99,2103,510
Delaware$78,300$77,850$63,310$92,780330
Alaska$78,280$77,090$62,600$94,710330
New York$77,080$82,150$61,360$96,97011,020
Connecticut$76,380$79,080$61,340$96,1602,430
Massachusetts$75,790$76,600$60,470$94,6305,120
Oregon$75,360$73,900$58,270$89,0901,650
Minnesota$75,260$73,480$60,720$84,3902,290
Virginia$74,320$73,340$59,710$83,3704,750
Georgia$73,500$70,900$56,530$80,9903,450

Online vs. On-Campus Dual MLIS Programs

Choosing between online and on-campus delivery can shape your entire dual degree experience. A growing number of ALA-accredited MLIS programs now offer fully online coursework, but the second degree in your pairing often dictates whether you can stay remote. Before committing, weigh these practical tradeoffs.

Pros

  • Online dual programs let you study from anywhere, removing the need to relocate near a specific university.
  • You can continue working full time or part time while completing coursework, which helps offset tuition costs.
  • MLIS/MBA and MLIS/MA (such as history or archival studies) pairings are the most commonly available in fully online or mostly online formats.
  • The number of ALA-accredited online MLIS options has grown steadily, giving you more choices without sacrificing program quality.
  • Asynchronous schedules make it easier to manage two sets of coursework and deadlines across different departments.

Cons

  • MLIS/JD dual programs almost always require in-person components like moot court, law clinics, or bar exam prep sessions.
  • MLIS/MSW pairings typically mandate supervised field practica or clinical hours that must be completed on site.
  • Networking with faculty, classmates, and visiting professionals can be harder to cultivate in a fully remote environment.
  • Some employers and hiring committees still view on-campus degrees as more rigorous, particularly for the non-MLIS portion of the pairing.
  • Hybrid attendance requirements for JD or MSW courses may force you to live within commuting distance of campus anyway, reducing the geographic flexibility you expected.

ALA Accreditation and Dual Degrees: Why It Matters

Accreditation standards remain the single most important credentialing checkpoint for anyone pursuing library work in the United States. When you enroll in a dual MLIS program, understanding how accreditation applies to each component can mean the difference between landing your target position and discovering your degree falls short of employer requirements.

How Accreditation Works Across Two Degrees

ALA accreditation covers only the library science portion of a dual program. The partner degree operates under its own accrediting body. An MBA component should carry AACSB (Association to Advance Collegiate Schools of Business) accreditation for maximum employer recognition. A JD requires approval from the American Bar Association. An MSW needs accreditation from the Council on Social Work Education. Each credential stands on its own merits, so students should verify both accreditations independently before committing to any program.

Why ALA Accreditation Is Non-Negotiable

Most public libraries, academic institutions, and federal agencies explicitly require an ALA accredited MLIS for professional librarian positions. State library systems and many school districts follow similar guidelines. Without ALA accreditation, graduates may find themselves locked out of positions regardless of their additional credentials or work experience. This requirement has remained consistent for decades and shows no sign of changing.

Shared Credits and Curriculum Standards

A dual-degree structure does not compromise ALA accreditation as long as the MLIS curriculum meets all required learning outcomes. ALA permits shared credits between programs when those courses satisfy competency requirements for both degrees. For example, a research methods course might count toward both an MLIS and an MSW if it addresses the learning objectives established by each accrediting body. Schools design these overlaps carefully to maintain compliance.

Verify Before You Enroll

The American Library Association maintains an online directory of accredited programs, updated regularly. Before applying to any dual-degree program, confirm that the MLIS component appears on this list. Contact the admissions office directly to verify that the specific dual-degree track you are considering maintains full ALA accreditation. Program structures can change, and assumptions based on a school's general reputation may not reflect the current status of a particular degree combination. Taking the time to choose a library science program with verified accreditation protects both your investment and your career prospects.

How to Apply to a Dual MLIS Program

Dual-degree admissions involve more moving parts than a single-program application. Use this checklist to stay on track.

  • Confirm the application structure
    Some universities accept a single application with a dual-degree option, Indiana University Bloomington's MIS/MLS dual program works this way. Others, such as the Loyola University Chicago and Dominican University public-history/MLIS partnership, require separate concurrent applications to each institution or department. Verify what your target programs expect before you start.
  • Meet GPA benchmarks for both programs
    Most MLIS programs look for a minimum GPA around 2.75 to 3.0 on a 4.0 scale. Partner programs may set a higher bar: JD components typically expect a 3.0 or above, and competitive MBA programs often prefer higher still. Check each program's stated minimums independently.
  • Determine which standardized tests you need
    The GRE is increasingly optional or not required for MLIS admission. However, a JD dual degree will require the LSAT, and many MBA tracks still require the GMAT or GRE. Confirm test requirements for both sides of the dual degree early, because score reports can take weeks to arrive.
  • Enroll in both programs on schedule
    Most dual-degree arrangements expect you to enroll in both programs simultaneously or add the second program within the first year. At Indiana University Bloomington, students may add the second degree after starting the first, but doing so can reduce the number of shared credits, typically nine to twelve, that make the dual pathway worthwhile. Programs often cap total completion time at five to seven years.
  • Sort out financial aid across programs
    At a single university, one FAFSA generally covers combined enrollment for both programs. Cross-institution dual degrees are trickier: you typically file for federal aid through your home school and submit separate scholarship or assistantship applications to each institution. Dual-degree students are generally eligible for the same federal loans, assistantships, and institutional scholarships as single-degree students, but you should confirm with each financial-aid office that your dual enrollment qualifies.
  • Watch program-specific deadlines
    Deadlines can differ between the two programs. For example, Loyola's public-history side of its dual degree with Dominican University lists a May 1 deadline for fall entry, while the MLIS side may follow a different calendar. Missing one deadline can delay your start by a full semester and complicate credit-sharing arrangements.
  • Prepare a dual-degree rationale statement
    Many programs ask for a personal statement that explains why you are pursuing both degrees together rather than separately. Be specific about the career intersection you are targeting, for instance, how an MLIS/JD combination prepares you for law-library leadership, and how the shared coursework strengthens both skill sets.

Frequently Asked Questions About Dual MLIS Degrees

Dual MLIS programs raise practical questions about credit loads, timelines, and accreditation. Below are the answers prospective students ask most often, drawn from published program details and accreditation standards.

How many credits can you save with a dual MLIS degree?
Most dual MLIS programs let you share 9 to 18 credits between the two degrees. For example, the University of Michigan's MLIS/MSI dual option shares roughly 12 credits, while some MLIS/JD combinations at schools like the University of Washington allow up to 18 shared credits. The exact savings depend on institutional policy and how much curricular overlap exists between the two programs.
Is a dual MLIS degree worth it compared to earning a single MLIS?
A dual degree is worth it when the second credential opens a distinct career track you cannot reach with the MLIS alone. An MLIS/JD, for instance, qualifies you for law librarianship positions that typically require both degrees. If your career goal is a standard public or academic librarian role, a single MLIS is usually sufficient, and the added tuition and coursework of a dual program may not deliver a meaningful salary boost.
Can you complete a dual MLIS degree entirely online?
Some combinations can be completed fully online, but options are limited. Programs pairing the MLIS with fields like public administration or education are more likely to offer online formats. Combinations involving lab sciences or clinical social work almost always require in-person components. Check each school's delivery mode for both halves of the degree before assuming a fully remote path is available.
How long does it take to earn a dual MLIS degree?
Full-time students typically finish a dual MLIS program in three to four years, compared with five or more years if the two degrees were pursued separately. An MLIS/MBA combination, for example, usually runs about three years at schools like Simmons University. Programs with clinical or fieldwork requirements, such as the MLIS/MSW, tend to fall closer to the four-year mark.
Does ALA accreditation apply to the MLIS portion of a dual degree?
Yes. The American Library Association accredits the MLIS component specifically, not the partner degree. As long as the MLIS half is housed in an ALA-accredited program, your library science credential carries full accreditation regardless of the second discipline. Always verify accreditation status on the ALA's directory, because a university may offer unaccredited library studies courses outside its accredited MLIS track.
What is the difference between a dual degree and a double degree in library science?
A dual (or joint) degree is a single, coordinated program administered by two departments that lets you share credits and graduate with both degrees faster. A double degree means you enroll in two entirely separate programs, complete the full credit load for each, and receive two independent diplomas with no shared coursework. Dual degrees save time and tuition; double degrees offer maximum flexibility but cost more overall.

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