ZIP Codes of Campbell County, WY

Population & People
Population & People
Total Population
47,226
Household Income
Household Income
Median Income
$88,485
Housing
Housing
Total Housing Units
20,012
Business & Economy
Business & Economy
Total Businesses
1,506
Employment
Employment
Employment Rate
66.23%
Education
Education
Bachelor's Degree+
23.34%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: June 1, 2026
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
Quick Link:
https://www.zip-codes.com/county/wy-campbell.asp
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Top 3 most populous in Wyoming
#3 of 28 counties in Wyoming, with 47,226 residents.

Standout ZIPs in this County


Most Populous
Gillette · 26,619 people
56.4% of county total
Highest Income
Gillette · $104,458 median
1.2× county average
Largest Land Area
Gillette · 2,349.1 sq mi
Spans the most ground
Fastest Growth
Gillette · 9.0% (10-yr)
24,426 → 26,619 residents
Most Educated
Gillette · 28.7% bachelor's+
4,729 of 16,470 adults 25+

Things worth knowing about Campbell County


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).

Density varies across the county — from 4 people/sq mi in 82727 (Rozet) to 24 in 82732 (Wright).

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.

Stories about Campbell County


Big & sparse

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.

Total area
4,805
square miles
Avg density
9.8
people per sq mi
Population
47,226
across 7 ZIPs
Gillette
2,349.1 sq mi
26,619 residents
Gillette
1,132.3 sq mi
16,817 residents
Weston
573.4 sq mi
47 residents

All ZIP Codes in Campbell County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
82718GilletteStandard26,619$104,4582,349.19.0%
82716GilletteStandard16,817$73,1551,132.3-6.1%
82727RozetStandard2,040$97,972481.8-12.5%
82732WrightPO Box1,671$78,35569.6-31.5%
82731WestonStandard47573.4-27.7%
82725RecluseStandard32198.6-85.6%
82717GillettePO Box0.0

Adjacent & Nearby Counties