RANKING · 1990 CENSUS · 500 SHOWN OF 3,122
Fewest graduate degrees, US counties · 1990
US counties with the smallest share of adults 25+ holding a graduate or professional degree (1990 ACS). Kalawao County, Hawaii leads at 0.0%. 3,122 counties qualify in total. North Dakota carries 4 of the top 25 entries.
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RANKPLACESTATEPOPGRADUATE DEGREEVS –
USUnited States248,709,8737.1%–
UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS
Frequently asked
Which county has the lowest graduate degree?
Kalawao County, Hawaii ranks #1 with 0.0% (1990 Decennial Census).
What are the top 5 counties by graduate degree?
Kalawao County, Hawaii, Slope County, North Dakota, Van Buren County, Tennessee, Menominee County, Wisconsin, Sheridan County, North Dakota.
How many counties are in this ranking?
3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 Decennial Census data.
How is graduate degree measured?
Share of adults 25+ with a graduate or professional degree. Source: US Census Bureau, 1990 Decennial Census.