| 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: | 2:13:26 PM |
| Population: | 9,220 [See All] |
| FIPS: | 40105 |
| Land Area: | 589 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 36.8440, -95.5901 |
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9,220 residents live across 5 ZIPs covering 589 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 10,522 to 9,220 from 2014 to 2024 — a -12.4% change. 0 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 74072 (S Coffeyville, $67,708 median) and poorest ZIP 74027 (Delaware, $48,375) are 13.6 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.8× across this county — from $84,200 in 74042 (Lenapah) to $233,800 in 74083 (Wann).
Educational attainment ranges from 8.3% bachelor's+ in 74042 (Lenapah) to 17.9% in 74048 (Nowata) — the breadth of educational profiles across the area.
Within Oklahoma, this is the #59 most populous of 78 counties and ranks #49 for median household income .
Weighted by population, the typical household earns about $56,083 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.6% of adults age 25+ hold a bachelor's degree or higher (1,069 of 6,428 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Nowata County lost 12.4% of residents between 2014 and 2024. ZIPs that shed the largest share: