Most Educated U.S. Counties 2026: Top 100 by Bachelor’s Degree or Higher

Overview: what “most educated” means here

“Most educated” refers to one specific Census educational-attainment measure: the share of residents age 25 and older who have completed a bachelor’s degree, master’s degree, professional degree or doctorate.

The ranking does not measure school quality, current college enrollment or the total number of degree holders. A small county can rank above a large county because the metric is a percentage rather than an absolute count.

For national context only, U.S. Census QuickFacts reports 35.7% of U.S. residents age 25 and older with a bachelor’s degree or higher for 2020–2024. The 100th entry in this ranking is 49.8%, well above that national comparison benchmark.

Census county-level geography includes conventional counties and county equivalents. That is why Virginia independent cities, the District of Columbia and Connecticut planning regions can appear in the same national county ranking.

Top 10 most educated U.S. counties and county equivalents

Virginia places five entries in the Top 10, including the first two positions. Colorado places three, while New Mexico and Maryland each contribute one.

Top 10 by bachelor’s degree or higher, Census ACS 2024 5-year

Rank is based on the published percentage in descending order. Equal one-decimal values are ordered alphabetically for stable display and should be treated as tied at the published precision.

Methodology

Every ranking row is an official_value published by the Census Bureau. The page does not calculate county attainment percentages from component counts and does not estimate or project values for 2026.

County equivalents are retained where the Census uses them at county geography level, including Virginia independent cities, the District of Columbia and Connecticut planning regions.

Values are sorted descending. When multiple entities have the same published one-decimal estimate, alphabetical order is used only as a deterministic display tie-break. No conflicting values are averaged.

ACS estimates are survey estimates and include margins of error. The ranking uses the published point estimate as its sorting field, so small gaps between nearby entries should not automatically be interpreted as statistically significant differences.

The metric measures completed educational attainment among adults. It does not directly measure K–12 school quality, current college enrollment, workforce productivity, income, skills or the absolute number of degree holders.

Main ranking: Top 100 most educated U.S. counties

Search by county or county equivalent, filter by state, change the sort order or limit the table to the Top 10 or Top 20. Without JavaScript, all 100 confirmed rows remain visible.

Top 100 by percentage of residents age 25+ with a bachelor’s degree or higher

Primary numeric source: U.S. Census Bureau, 2024 ACS 5-Year Subject Table S1501. All ranking values are official published point estimates for the 2020–2024 period.

Insights from the Top 100

What the ranking means

The ranking shows where adults with at least a four-year degree make up the largest share of the age-25-and-older population. It is a measure of resident educational attainment, not a ranking of local schools or universities.

Because the measure is percentage-based, population size does not determine rank. Small counties can appear alongside major metropolitan counties even though the absolute number of degree holders is very different.

Close ranks should be interpreted cautiously because ACS estimates have margins of error. A difference of a few tenths of a percentage point does not necessarily indicate a statistically meaningful difference between two counties.

FAQ

Sources