| ZIP Codes: | 11 ZIP Codes (7 Standard, 4 PO Box, 0 Unique) [See All] |
| Area Codes: | 303 / 720 / 748 / 970 / 983 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:14:24 PM |
| Population: | 20,206 [See All] |
| FIPS: | 08069 |
| CBSA: | Fort Collins-Loveland, CO |
| Land Area: | 3,544 sq mi |
| Water Area: | 39 sq mi |
| Coordinates: | 41.1831, -105.8825 |
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38,234 residents live across 11 ZIPs covering 3,544 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 37,167 to 38,234 from 2014 to 2024 — a +2.9% change. 5 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 82055 (Centennial, $110,579 median) and poorest ZIP 82083 (Rock River, $49,000) are 21.1 miles apart — a 2.3× income gap across local geography.
Median home values vary 2.7× across this county — from $125,500 in 82083 (Rock River) to $338,500 in 82070 (Laramie).
Density varies 163× across the county — from 0 people/sq mi in 82083 (Rock River) to 68 in 82072 (Laramie).
Most of the decade's growth concentrated around Laramie — top growth ZIPs averaged +44.6% over the past ten years ( 82055 , 82072 and 82070 ).
Educational attainment ranges from 38.6% bachelor's+ in 82083 (Rock River) to 82.2% in 82055 (Centennial) — the breadth of educational profiles across the area.
Within Wyoming, this is the #10 most populous of 28 counties and ranks #11 for median household income .
Weighted by population, the typical household earns about $62,775 across the county — reflecting what a typical resident sees, not a simple ZIP average.
54.9% of adults age 25+ hold a bachelor's degree or higher (11,872 of 21,610 reporting). The most-educated ZIPs cluster around Laramie.
7 Standard delivery, 4 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 |
|---|---|---|---|---|---|---|
| 82070 | Laramie | Standard | 20,144 | $69,095 | 1,156.3 | -3.6% |
| 82072 | Laramie | Standard | 16,931 | $53,863 | 248.1 | 8.8% |
| 82055 | Centennial | PO Box | 521 | $110,579 | 140.3 | 128.5% |
| 82083 | Rock River | Standard | 288 | $49,000 | 686.1 | -15.5% |
| 82084 | Tie Siding | PO Box | 174 | — | 124.5 | — |
| 82063 | Jelm | Standard | 62 | $105,208 | 78.9 | 195.2% |
| 82051 | Bosler | Standard | 50 | — | 435.3 | 354.5% |
| 82073 | Laramie | PO Box | 37 | — | 0.0 | -15.9% |
| 82058 | Garrett | Standard | 27 | — | 602.1 | -51.8% |
| 82052 | Buford | Standard | 0 | — | 72.7 | -100.0% |
| 82071 | Laramie | PO Box | — | — | 0.1 | — |