| ZIP Codes: | 10 ZIP Codes (7 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 539 / 918 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:26 PM |
| Population: | 36,070 [See All] |
| FIPS: | 40115 |
| CBSA: | Miami, OK |
| Land Area: | 599 sq mi |
| Water Area: | 36 sq mi |
| Coordinates: | 36.8659, -94.8368 |
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36,070 residents live across 10 ZIPs covering 599 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 37,531 to 36,070 from 2014 to 2024 — a -3.9% change. 3 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 74331 (Afton, $61,272 median) and poorest ZIP 74339 (Commerce, $34,970) are 20.0 miles apart — a 1.8× income gap across local geography.
Median home values vary 3.4× across this county — from $59,400 in 74358 (North Miami) to $204,500 in 74331 (Afton).
Density varies 147× across the county — from 31 people/sq mi in 74370 (Wyandotte) to 4,485 in 74358 (North Miami).
Educational attainment ranges from 8.4% bachelor's+ in 74339 (Commerce) to 22.1% in 74331 (Afton) — the breadth of educational profiles across the area.
Within Oklahoma, this is the #26 most populous of 78 counties and ranks #67 for median household income .
Weighted by population, the typical household earns about $52,108 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.7% of adults age 25+ hold a bachelor's degree or higher (4,083 of 24,396 reporting).
7 Standard delivery, 3 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 74354 | Miami | Standard | 17,208 | $50,818 | 190.2 | -5.5% |
| 74331 | Afton | Standard | 7,058 | $61,272 | 145.6 | 7.5% |
| 74370 | Wyandotte | Standard | 3,656 | $52,535 | 119.6 | -6.5% |
| 74343 | Fairland | Standard | 3,183 | $47,829 | 67.8 | 11.1% |
| 74363 | Quapaw | Standard | 2,492 | $55,524 | 71.4 | -19.5% |
| 74339 | Commerce | Standard | 2,245 | $34,970 | 3.4 | -15.1% |
| 74358 | North Miami | PO Box | 222 | $50,000 | 0.0 | 4.7% |
| 74360 | Picher | Standard | 6 | — | 1.2 | -80.0% |
| 74335 | Cardin | PO Box | — | — | 0.0 | — |
| 74355 | Miami | PO Box | — | — | 0.0 | — |