| ZIP Codes: | 16 ZIP Codes (11 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Code: | 580 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:24 PM |
| Population: | 121,575 [See All] |
| FIPS: | 40031 |
| CBSA: | Lawton, OK |
| Land Area: | 1,144 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 34.6178, -98.4516 |
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121,575 residents live across 16 ZIPs covering 1,144 sq mi, served by 12 distinct USPS-recognized cities.
Population moved from 124,105 to 121,575 from 2014 to 2024 — a -2.0% change. 7 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 73538 (Elgin, $91,324 median) and poorest ZIP 73501 (Lawton, $49,741) are 12.6 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.5× across this county — from $117,100 in 73543 (Geronimo) to $288,700 in 73538 (Elgin).
Density varies 7153× across the county — from 5 people/sq mi in 73528 (Chattanooga) to 32,542 in 73567 (Sterling).
Educational attainment ranges from 14.9% bachelor's+ in 73501 (Lawton) to 34.7% in 73538 (Elgin) — the breadth of educational profiles across the area.
Within Oklahoma, this is the #5 most populous of 78 counties and ranks #11 for median household income .
Weighted by population, the typical household earns about $61,499 across the county — reflecting what a typical resident sees, not a simple ZIP average.
24.4% of adults age 25+ hold a bachelor's degree or higher (19,153 of 78,607 reporting).
11 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 73505 | Lawton | Standard | 47,790 | $58,272 | 81.9 | -7.0% |
| 73507 | Lawton | Standard | 21,046 | $62,132 | 231.3 | -10.8% |
| 73501 | Lawton | Standard | 20,397 | $49,741 | 103.0 | -0.3% |
| 73503 | Fort Sill | Standard | 11,468 | $60,859 | 28.8 | 13.3% |
| 73538 | Elgin | Standard | 7,128 | $91,324 | 120.5 | 38.1% |
| 73527 | Cache | Standard | 5,109 | $74,526 | 85.1 | -1.8% |
| 73541 | Fletcher | Standard | 3,257 | $61,420 | 88.3 | 6.5% |
| 73543 | Geronimo | Standard | 1,993 | $86,667 | 60.9 | 19.8% |
| 73552 | Indiahoma | Standard | 1,404 | $85,500 | 138.9 | -13.8% |
| 73567 | Sterling | PO Box | 781 | $66,250 | 0.0 | 21.5% |
| 73528 | Chattanooga | Standard | 617 | $59,583 | 135.6 | 1.1% |
| 73540 | Faxon | Standard | 324 | $86,458 | 62.2 | -15.6% |
| 73557 | Medicine Park | PO Box | 261 | $118,056 | 7.8 | 27.9% |
| 73558 | Meers | PO Box | — | — | 0.0 | — |
| 73502 | Lawton | PO Box | — | — | 0.0 | — |
| 73506 | Lawton | PO Box | — | — | 0.0 | — |