| ZIP Codes: | 7 ZIP Codes (5 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 307 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:14:24 PM |
| Population: | 47,226 [See All] |
| FIPS: | 56005 |
| CBSA: | Gillette, WY |
| Land Area: | 4,805 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 44.3527, -105.5036 |
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47,226 residents live across 7 ZIPs covering 4,805 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 47,400 to 47,226 from 2014 to 2024 — a -0.4% change. 1 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 82718 (Gillette, $104,458 median) and poorest ZIP 82716 (Gillette, $73,155) are 43.5 miles apart — a 1.4× income gap across local geography.
Median home values vary 1.5× across this county — from $235,500 in 82716 (Gillette) to $344,300 in 82727 (Rozet).
Educational attainment ranges from 5.9% bachelor's+ in 82732 (Wright) to 28.7% in 82718 (Gillette) — the breadth of educational profiles across the area.
Within Wyoming, this is the #3 most populous of 28 counties and ranks #10 for median household income .
Weighted by population, the typical household earns about $92,087 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.3% of adults age 25+ hold a bachelor's degree or higher (7,262 of 31,113 reporting). The most-educated ZIPs cluster around Gillette.
5 Standard delivery, 2 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 |
|---|---|---|---|---|---|---|
| 82718 | Gillette | Standard | 26,619 | $104,458 | 2,349.1 | 9.0% |
| 82716 | Gillette | Standard | 16,817 | $73,155 | 1,132.3 | -6.1% |
| 82727 | Rozet | Standard | 2,040 | $97,972 | 481.8 | -12.5% |
| 82732 | Wright | PO Box | 1,671 | $78,355 | 69.6 | -31.5% |
| 82731 | Weston | Standard | 47 | — | 573.4 | -27.7% |
| 82725 | Recluse | Standard | 32 | — | 198.6 | -85.6% |
| 82717 | Gillette | PO Box | — | — | 0.0 | — |