Roughly 35% of American adults aged 25 and over hold a bachelor's degree or higher, the highest share in US history. But the average hides large differences. In Massachusetts, nearly 1 in 2 adults has a four-year degree. In West Virginia, fewer than 1 in 4 does. This guide ranks all 50 states by college attainment using Census Bureau data.
Top 10 most educated states
| Rank | State | Bachelor's+ (%) | Famous universities |
|---|---|---|---|
| 1 | Massachusetts | ~47% | Harvard, MIT, Tufts |
| 2 | Colorado | ~45% | CU Boulder, Colorado State |
| 3 | Maryland | ~42% | Johns Hopkins, U. Maryland |
| 4 | Connecticut | ~42% | Yale, UConn |
| 5 | New Jersey | ~42% | Princeton, Rutgers |
| 6 | Virginia | ~41% | UVA, Virginia Tech, William & Mary |
| 7 | New Hampshire | ~40% | Dartmouth |
| 8 | New York | ~40% | Columbia, Cornell, NYU, SUNY |
| 9 | Washington | ~39% | UW Seattle |
| 10 | Vermont | ~39% | UVM, Middlebury |
Why Massachusetts ranks #1
Massachusetts has the most concentrated higher-education cluster in the country. Greater Boston alone hosts Harvard, MIT, Boston University, Boston College, Tufts, Northeastern, Brandeis, Wellesley and dozens more. Add western Massachusetts (Amherst, Smith, Mount Holyoke, Williams) and the state's higher-education industry rivals Silicon Valley's tech industry as an economic engine.
The state also benefits from positive migration: educated workers move in for biotech (Cambridge), finance (Boston) and academia. The result is a self-reinforcing cluster, high attainment, high wages, high prices, more attainment.
Top 10 least educated states
| Rank | State | Bachelor's+ (%) |
|---|---|---|
| 1 | West Virginia | ~23% |
| 2 | Mississippi | ~24% |
| 3 | Arkansas | ~25% |
| 4 | Louisiana | ~26% |
| 5 | Kentucky | ~26% |
| 6 | Alabama | ~28% |
| 7 | Oklahoma | ~28% |
| 8 | Nevada | ~28% |
| 9 | Indiana | ~29% |
| 10 | Tennessee | ~30% |
The geographic pattern
College attainment in the US follows a clear geographic logic:
- Northeast and West Coast dominate the top. Massachusetts, Connecticut, New Jersey, Maryland, Virginia, New York, Washington, Colorado, California (~36%).
- South and Appalachia dominate the bottom. West Virginia, Mississippi, Arkansas, Louisiana, Kentucky, Alabama, Tennessee.
- Midwest is in the middle. Minnesota (~38%) and Illinois (~37%) rank high; Indiana, Ohio, Iowa cluster nearer the national mean.
- Mountain West splits. Colorado and Utah are above average; Nevada and Wyoming below.
College attainment vs income
The correlation between bachelor's-degree share and median household income is one of the tightest in US demographic data. Examples:
- Massachusetts, 47% attainment, ~$96,000 median household income.
- New Jersey, 42% attainment, ~$97,000 median household income.
- Maryland, 42% attainment, ~$98,000 median household income (often highest in the country).
- West Virginia, 23% attainment, ~$54,000 median household income.
- Mississippi, 24% attainment, ~$53,000 median household income (often lowest).
Most concentrated college towns
- Cambridge, MA, Harvard + MIT, the densest research cluster in the world.
- Palo Alto, CA, Stanford.
- New Haven, CT, Yale.
- Princeton, NJ, Princeton University.
- Ann Arbor, MI, University of Michigan.
- Berkeley, CA, UC Berkeley.
- Madison, WI, University of Wisconsin.
- Chapel Hill, NC, UNC.
- Boulder, CO, CU Boulder.
- Austin, TX, UT Austin.
Advanced degrees: a sharper picture
The share of adults with graduate degrees (master's, PhD, JD, MD) tilts the rankings further toward research-heavy states:
- Massachusetts, ~22%
- Maryland, ~21% (driven by Johns Hopkins + DC professional class)
- Connecticut, ~19%
- Virginia, ~19% (DC suburbs)
- New York, ~18%
- Colorado, ~16%
High school completion: the baseline
Before bachelor's degrees, look at high school completion. Almost every state is now above 85%. The leaders are usually:
- Wyoming, Minnesota, Iowa, North Dakota, New Hampshire, over 93%.
The lowest are usually:
- California, Texas, Mississippi, New Mexico, under 86%, often driven by older immigrant populations who didn't complete US high school.
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Play today's puzzle →Why does this matter?
College attainment is one of the strongest single predictors of:
- Median household income
- Unemployment rate
- Life expectancy
- Civic participation
- Voting patterns (correlates with how states swing politically, see our guide to swing states).
- Migration patterns (educated workers concentrate in metro areas).
Frequently asked questions
What's the most educated state?
Massachusetts, where ~47% of adults hold a bachelor's degree.
What's the least educated state?
West Virginia, at ~23%.
What's the US average?
About 35% of adults aged 25+ hold a bachelor's degree, the highest level in US history.
Is California in the top 10?
Just outside, at about 36%. It's pulled down by parts of the Central Valley and the high foreign-born share. Bay Area and coastal metros are much higher.
Where do I find the official numbers?
The US Census Bureau's American Community Survey (ACS) publishes "Educational Attainment" tables for every state.