| ZIP Codes: | 2 ZIP Codes (2 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 307 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:14:25 PM |
| Population: | 4,610 [See All] |
| FIPS: | 56017 |
| Land Area: | 1,572 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 43.7669, -108.3385 |
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4,610 residents live across 2 ZIPs covering 1,572 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 4,793 to 4,610 from 2014 to 2024 — a -3.8% change. 0 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 82443 (Thermopolis, $62,767 median) and poorest ZIP 82430 (Kirby, $35,417) are 13.8 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.7× across this county — from $86,300 in 82430 (Kirby) to $230,000 in 82443 (Thermopolis).
Density varies 2× across the county — from 3 people/sq mi in 82443 (Thermopolis) to 4 in 82430 (Kirby).
Educational attainment ranges from 4.7% bachelor's+ in 82430 (Kirby) to 27.2% in 82443 (Thermopolis) — the breadth of educational profiles across the area.
Within Wyoming, this is the #24 most populous of 28 counties and ranks #28 for median household income .
Weighted by population, the typical household earns about $62,310 across the county — reflecting what a typical resident sees, not a simple ZIP average.
26.8% of adults age 25+ hold a bachelor's degree or higher (872 of 3,256 reporting).
2 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.