Adair County, Oklahoma Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 41st-largest in Oklahoma
The population of Adair County, Oklahoma is 19,595 as of the 2023 American Community Survey, making it the 41st-largest county in Oklahoma. The median household income is $48,028, the median home value is $111,500, and the median age is 38.1.
The population of Adair County has declined 12.9% since 2010 (22,760 → 19,821), a -0.98% annualized rate.
19,595
Population
-0.98%
Annual growth
34
People / sq mi
$48,028
Median Income
$111,500
Median Home Value
Adair County covers 574 sq mi of land at 34.1 people per square mile.
About Adair County, OK
Adair County is a county in Oklahoma with a population of 19,595. It ranks #41 among counties in Oklahoma by population. The median age is 38.1, in line with the national median. The population is 50.1% male and 49.9% female.
The median household income in Adair County is $48,028, below the US median of $74,580. 17.8% of residents live below the federal poverty level. Home values sit at a median of $111,500, with monthly rent averaging $650. The homeownership rate of 68.0% is higher than the national rate of 64.8%.
Educational attainment in Adair County reflects 11.8% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 3.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 25.3 minutes each way.
Adair County Population History (2010-2024)
The county of Adair County had a population of 22,760 in 2010 and 19,821 in 2024, a -12.9% growth over 14 years. The peak was 22,760 in 2010. Average annual growth rate: -0.93%.
19,821
Population (2024)
22,760
Population (2010)
22,760
Peak (2010)
-0.93%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 22,760 |
| 2011 | 22,668 |
| 2012 | 22,466 |
| 2013 | 22,463 |
| 2014 | 22,392 |
| 2015 | 22,266 |
| 2016 | 22,301 |
| 2017 | 22,122 |
| 2018 | 22,251 |
| 2019 | 22,224 |
| 2020 | 19,458 |
| 2021 | 19,444 |
| 2022 | 19,513 |
| 2023 | 19,641 |
| 2024 | 19,821 |
Race & Ethnicity
| White | 40.4% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 52.2% |
| Two or More Races | 0.0% |
Age & Sex
38.1
Median Age
49.9%
Female
50.1%
Male
15.9%
Age 65+
Age Distribution
Children (under 15): 22.0% · Seniors (65+): 15.9%
Income & Poverty
| Median household income | $48,028$-15,575 vs state |
| Mean household income | $58,562 |
| Per-capita income | $22,115 |
| Poverty rate | 17.8%+6.7% vs state |
| Unemployment rate | 3.7% |
| Employment-to-population | 49.2% |
Top Industries by Employment
The largest employment sector in Adair County is professional & business services, accounting for 26.6% of workers.
How residents commute
0.1%
Drive alone
3.8%
Carpool
79.0%
Public transit
3.9%
Work from home
25.3 min
Avg commute
Housing
$111,500$-74,400 vs state
Median home value
$650
Median rent
68.0%
Homeownership rate
8,123
Total housing units
85.3%
Occupied
14.7%
Vacant
32.0%
Renter-occupied
Social & access
79.2%
With health insurance
82.0%
With broadband internet
40.4%
Foreign-born
6.9%
Veterans (18+)
22.2%
With a disability
92.8%
Speak language other than English at home
Education
82.8%
High School+
11.8%
Bachelor's+
Largest cities in Oklahoma
Other counties in Oklahoma
Part of Oklahoma
Metro areas in Oklahoma
County rankings
Frequently Asked Questions
Adair County, Oklahoma has a population of 19,595 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 41st-largest county in Oklahoma. Population density is 34 people per square mile.
The population of Adair County has declined 12.9% since 2010 (22,760 → 19,821), a -0.98% annualized rate.
The median household income in Adair County, Oklahoma is $48,028, with mean (average) household income of $58,562 and per-capita income of $22,115. 17.8% of residents live below the federal poverty level.
In Adair County, the largest racial and ethnic groups are Hispanic or Latino (52.2%), White (40.4%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Adair County, Oklahoma is 38.1 years. Residents are 49.9% female and 50.1% male.
The median home value in Adair County is $111,500 and median monthly rent is $650. 68.0% of occupied housing units are owner-occupied. The county has 8,123 total housing units, 14.7% of which are vacant.
The largest employment sector in Adair County, Oklahoma is professional, scientific, and management services, employing 26.6% of workers. The unemployment rate is 3.7%.
Oklahoma City is among the largest cities associated with Adair County, Oklahoma, with a population of 688,693.
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Full rankings of Oklahoma counties
Statewide data for Oklahoma
Population, race, income, age, and trends across Oklahoma
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.