| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 539 / 918 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:23 PM |
| Population: | 20,464 [See All] |
| FIPS: | 40001 |
| Land Area: | 662 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 35.9301, -94.7078 |
| Quick Link: |
20,464 residents live across 5 ZIPs covering 662 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 23,388 to 20,464 from 2014 to 2024 — a -12.5% change. 0 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 74931 (Bunch, $56,667 median) and poorest ZIP 74457 (Proctor, $36,667) are 24.3 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.5× across this county — from $116,000 in 74960 (Stilwell) to $175,000 in 74457 (Proctor).
Density varies 6× across the county — from 7 people/sq mi in 74457 (Proctor) to 40 in 74965 (Westville).
Educational attainment ranges from 10.8% bachelor's+ in 74965 (Westville) to 20.7% in 74457 (Proctor) — the breadth of educational profiles across the area.
Within Oklahoma, this is the #39 most populous of 78 counties and ranks #72 for median household income .
Weighted by population, the typical household earns about $48,397 across the county — reflecting what a typical resident sees, not a simple ZIP average.
12.4% of adults age 25+ hold a bachelor's degree or higher (1,675 of 13,543 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Adair County lost 12.5% of residents between 2014 and 2024. ZIPs that shed the largest share: