| ZIP Codes: | 12 ZIP Codes (9 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 307 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:14:25 PM |
| Population: | 32,240 [See All] |
| FIPS: | 56033 |
| CBSA: | Sheridan, WY |
| Land Area: | 2,990 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 44.7339, -106.8776 |
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32,240 residents live across 12 ZIPs covering 2,990 sq mi, served by 12 distinct USPS-recognized cities.
Population moved from 29,984 to 32,240 from 2014 to 2024 — a +7.5% change. 9 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 82842 (Story, $105,859 median) and poorest ZIP 82839 (Ranchester, $57,708) are 27.1 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.7× across this county — from $329,100 in 82836 (Dayton) to $895,100 in 82832 (Banner).
Density varies 70× across the county — from 1 people/sq mi in 82835 (Clearmont) to 43 in 82801 (Sheridan).
Educational attainment ranges from 28.0% bachelor's+ in 82839 (Ranchester) to 49.4% in 82838 (Parkman) — the breadth of educational profiles across the area.
Within Wyoming, this is the #6 most populous of 28 counties and ranks #12 for median household income with the #4 fastest decade growth .
Weighted by population, the typical household earns about $74,609 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.1% of adults age 25+ hold a bachelor's degree or higher (7,150 of 23,017 reporting).
9 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.
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 |
|---|---|---|---|---|---|---|
| 82801 | Sheridan | Standard | 26,310 | $73,213 | 612.3 | 6.6% |
| 82839 | Ranchester | Standard | 1,661 | $57,708 | 141.4 | 25.5% |
| 82832 | Banner | Standard | 1,386 | $94,375 | 129.2 | 25.9% |
| 82836 | Dayton | Standard | 1,077 | $79,375 | 297.6 | 16.4% |
| 82842 | Story | Standard | 567 | $105,859 | 13.5 | -40.8% |
| 82838 | Parkman | Standard | 377 | $65,815 | 339.9 | 6.5% |
| 82835 | Clearmont | Standard | 362 | $103,750 | 587.5 | 35.1% |
| 82833 | Big Horn | PO Box | 247 | — | 33.5 | 135.2% |
| 82831 | Arvada | Standard | 153 | $127,500 | 707.7 | -16.8% |
| 82845 | Wyarno | PO Box | 55 | — | 109.0 | — |
| 82837 | Leiter | PO Box | 39 | $54,531 | 0.0 | 14.7% |
| 82844 | Wolf | Standard | 6 | — | 18.6 | -89.8% |