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Kay County: Demographics & People

43,625 people call Kay County home, in 16,776 households. Median age 38.5 years. (3.3y older than Oklahoma). Population is 9% Hispanic or Latino and 2% Black. County is losing 415 residents per year (2022-2023). County health: 40% adult obesity, 22% smoke.

Population & Trend

Current population 43,625; figures track the most recent Census ACS 5-year estimates.

Population43,625 people (vs Oklahoma 63,420) population: 3 observations from 2026-04-17 to 2026-04-23
Total Town Population37,178 people

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Age Distribution

Median age 38.5y is 0.4 years younger than the U.S. median (38.9y).

Age Summary · Total Pop43,625
Age Summary · Under 1810,822
Age Summary · 18 To 349,125.0×
Age Summary · 35 To 6415,230.0×
Age Summary · 65 Plus8,448
Age Summary · Pct Under 1824.8%
Age Summary · Pct 18 To 3420.9%
Age Summary · Pct 35 To 6434.9%
Median age38.5 years (vs Oklahoma 35.2y)

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Race, Ethnicity & Diversity

Of 43,625 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).

Census Demographics · Total Population43,625 people
White residents32,338
Black residents864
Asian residents231
Census Demographics · Aian3,240
Census Demographics · Nhpi254
Census Demographics · Other Race1,330
Census Demographics · Two Or More Races5,368
Diversity Index42.9%
Asian population0.5% (vs Oklahoma 3.2%)
Black population2.0% (vs Oklahoma 5.5%)
Hispanic or Latino population9.0% (vs Oklahoma 12.3%)

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Citizenship & Origin

Where residents were born and their citizenship status (Census ACS). 9.4% are foreign-born — below the U.S. average of 13.9%.

Census Citizenship · Total43,625
Census Citizenship · Native42,334
Residents born in this state28,137
Residents born in another state13,877
Census Citizenship · Foreign Born4,106
Census Citizenship · Naturalized2,834
Census Citizenship · Non Citizen320
Foreign-born residents9.4%

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Households & Family Composition

16,776 households.

Family households10,554 households (vs Oklahoma 16,590)
Total households16,776 households (vs Oklahoma 23,671)

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Residential Stability & Migration

How long residents have lived here and where they came from. The surrounding county is losing 415 residents per year on net (IRS migration data).

Migration · People moving in (annual)37,141
Migration · People moving out (annual)37,556
Migration · Net migration (in − out)-415
Migration · Year2022-2023

Sources: IRS SOI Migration 2022-2023

Disability

Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.

Census Disability · Total Pop42,687
With Disability8,340
Pct With Disability19.5%

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Group Quarters

Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 0 residents live in group quarters.

Census Group Quarters · Total1,320

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29

Other

Census Mobility · Total43,115
Census Mobility · Same House36,433
Census Mobility · Same County4,009
Census Mobility · Diff County Same State1,386
Census Mobility · Diff State1,268
Census Mobility · From Abroad19
Census Mobility · Moved Total6,682
Census Mobility · Pct Moved In Year15.5%
Pct White74.1%

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-29