| ZIP Codes: | 7 ZIP Codes (6 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 580 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:54:46 PM |
| Population: | 20,861 [See All] |
| FIPS: | 40139 |
| CBSA: | Guymon, OK |
| Land Area: | 1,978 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 36.7380, -101.3585 |
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20,861 residents live across 7 ZIPs covering 1,978 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 21,679 to 20,861 from 2014 to 2024 — a -3.8% change. 4 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 73944 (Hardesty, $87,572 median) and poorest ZIP 73945 (Hooker, $48,839) are 14.3 miles apart — a 1.8× income gap across local geography.
Median home values vary 3.8× across this county — from $48,500 in 73944 (Hardesty) to $184,500 in 73942 (Guymon).
Density varies 22× across the county — from 2 people/sq mi in 73944 (Hardesty) to 45 in 73951 (Tyrone).
Educational attainment ranges from 16.5% bachelor's+ in 73942 (Guymon) to 45.7% in 73944 (Hardesty) — the breadth of educational profiles across the area.
Within Oklahoma, this is the #38 most populous of 78 counties and ranks #23 for median household income .
Weighted by population, the typical household earns about $61,502 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.2% of adults age 25+ hold a bachelor's degree or higher (2,804 of 12,625 reporting).
6 Standard delivery, 1 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 73942 | Guymon | Standard | 13,476 | $61,522 | 950.6 | 1.8% |
| 73945 | Hooker | Standard | 2,391 | $48,839 | 311.3 | -28.9% |
| 73949 | Texhoma | Standard | 1,620 | $62,477 | 376.1 | 12.6% |
| 73939 | Goodwell | Standard | 1,421 | $72,813 | 76.7 | -24.5% |
| 73951 | Tyrone | Standard | 1,376 | — | 30.6 | 13.6% |
| 73944 | Hardesty | Standard | 474 | $87,572 | 232.5 | 11.0% |
| 73901 | Adams | PO Box | 103 | — | 0.0 | -15.6% |