ZIP codes in Wyoming by county
Wyoming has 180 ZIP codes in its 23 counties. 33 of them cross a county line and 8 cross into a neighboring state. Lincoln County has the most, 16.
By the All Map Tools Team
- ZIP codes
- 180
- With 1% or more of their land in the state
- Counties
- 23
- Each one opens in the tool
- Cross a county line
- 33
- 1% or more of their land in another county
- Cross a state line
- 8
- 1% or more of their land in another state
- County with the most
- 16
- Lincoln County
- Most populated ZIP
- 82001
- 38,168 people · Cheyenne
ZIP codes per county in Wyoming
- 2–5
- 6–9
- 10–12
- 13–16
Counties and their ZIP codes
| County | Population (2025) | ZIP codes | Shared |
|---|---|---|---|
| Albany County | 38,558 | 12 | 4 |
| Big Horn County | 12,024 | 15 | 4 |
| Campbell County | 48,145 | 8 | 3 |
| Carbon County | 14,013 | 13 | 4 |
| Converse County | 13,824 | 5 | 3 |
| Crook County | 7,852 | 10 | 4 |
| Fremont County | 39,464 | 12 | 1 |
| Goshen County | 12,640 | 12 | 4 |
| Hot Springs County | 4,600 | 3 | 1 |
| Johnson County | 8,908 | 5 | 3 |
| Laramie County | 102,938 | 13 | 2 |
| Lincoln County | 21,180 | 16 | 2 |
| Natrona County | 80,526 | 14 | 4 |
| Niobrara County | 2,341 | 7 | 5 |
| Park County | 31,171 | 8 | 4 |
| Platte County | 8,634 | 5 | 2 |
| Sheridan County | 33,241 | 12 | 3 |
| Sublette County | 8,929 | 6 | 1 |
| Sweetwater County | 41,267 | 12 | 1 |
| Teton County | 23,333 | 9 | 2 |
| Uinta County | 20,728 | 6 | 1 |
| Washakie County | 7,597 | 2 | 1 |
| Weston County | 6,840 | 4 | 3 |
Every ZIP code in Wyoming, by county
A ZIP code that crosses a county line appears in each county it has 1% or more of its land in.
- Albany County (12)
- 82051, 82052, 82055, 82058, 82063, 82070, 82072, 82073, 82083, 82084, 82201, 82329
- Big Horn County (15)
- 82401, 82410, 82411, 82412, 82420, 82421, 82422, 82423, 82426, 82428, 82431, 82432, 82434, 82435, 82441
- Campbell County (8)
- 82701, 82716, 82718, 82725, 82727, 82731, 82732, 82831
- Carbon County (13)
- 82083, 82301, 82321, 82323, 82324, 82325, 82327, 82329, 82331, 82332, 82334, 82335, 82620
- Converse County (5)
- 82224, 82229, 82633, 82636, 82637
- Crook County (10)
- 57717, 82710, 82711, 82712, 82714, 82720, 82721, 82727, 82729, 82730
- Fremont County (12)
- 82310, 82501, 82510, 82512, 82513, 82514, 82515, 82516, 82520, 82523, 82642, 82649
- Goshen County (12)
- 82210, 82212, 82217, 82218, 82219, 82221, 82223, 82225, 82240, 82242, 82243, 82244
- Hot Springs County (3)
- 82401, 82430, 82443
- Johnson County (5)
- 82639, 82640, 82831, 82832, 82834
- Laramie County (13)
- 82001, 82005, 82007, 82009, 82050, 82053, 82054, 82059, 82060, 82061, 82081, 82082, 82221
- Lincoln County (16)
- 83101, 83110, 83111, 83112, 83114, 83116, 83118, 83119, 83120, 83121, 83122, 83123, 83124, 83126, 83127, 83128
- Natrona County (14)
- 82601, 82604, 82609, 82620, 82630, 82635, 82636, 82638, 82639, 82642, 82643, 82644, 82646, 82648
- Niobrara County (7)
- 82222, 82224, 82225, 82227, 82242, 82633, 82701
- Park County (8)
- 82190, 82414, 82421, 82423, 82433, 82435, 82440, 82450
- Platte County (5)
- 82201, 82210, 82213, 82214, 82215
- Sheridan County (12)
- 82801, 82831, 82832, 82833, 82835, 82836, 82837, 82838, 82839, 82842, 82844, 82845
- Sublette County (6)
- 82922, 82923, 82925, 82941, 83113, 83115
- Sweetwater County (12)
- 82301, 82322, 82336, 82901, 82929, 82932, 82934, 82935, 82938, 82942, 82943, 82945
- Teton County (9)
- 82190, 82925, 83001, 83011, 83012, 83013, 83014, 83025, 83414
- Uinta County (6)
- 82930, 82933, 82936, 82937, 82939, 82944
- Washakie County (2)
- 82401, 82442
- Weston County (4)
- 82701, 82723, 82729, 82730
Neighboring states
Tools for Wyoming
Sources
- U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
- U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
- U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.
How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.
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