State 56 · WY
Wyoming county map
Wyoming has 23 counties. Sweetwater County is the largest by land at 10,427 square miles, and Laramie County is the most populous with 101,783 residents.
- Population 2024
- 587,618
- #51 of 51
- Land area
- 97,089 sq mi
- #9 of 51
- Density
- 6.1 / sq mi
- #50 of 51
- Counties
- 23
- Capital: Cheyenne
Map of all 23 counties in Wyoming
Every county is labeled on Census 2024 boundaries. Download it as a PDF to print, a PNG, or an editable SVG. For blank, colored or city versions, see the printable Wyoming map sheets.
Wyoming population and land area
Wyoming had 587,618 residents in the Census Vintage 2024 estimates, the sum of its counties. That ranks 51st of the 50 states and DC. Its 97,089 square miles of land rank 9th. Wyoming averages 6.1 people per square mile of land, a small fraction of the national figure of 96.3. By density it ranks 50th.
- Population, 2024
- 587,61851st of 51
- Land area
- 97,089 sq mi9th of 51
- Density
- 6.1 per sq mi50th of 51
- Number of counties
- 23
- Capital
- Cheyenne41.140° N, 104.820° W
- State FIPS code
- 56
Wyoming counties by population, density and income
Each shape is shaded by quintile, darker for higher values. Switch the measure above the map. Select a shape to open that county's page. The pin marks the capital, Cheyenne.
- < 2.3
- 2.3+
- 3.4+
- 4.5+
- 9.2+
Largest county in Wyoming by land area
Sweetwater County ranks first at 10,427 square miles and Hot Springs County last at 2,004 square miles. The top value is 5.2 times the bottom one.
- 01Sweetwater County10,427
- 02Fremont County9,184
- 03Carbon County7,898
- 04Park County6,939
- 05Natrona County5,341
- 06Sublette County4,886
- 07Campbell County4,802
- 08Albany County4,274
- 09Converse County4,255
- 10Johnson County4,154
Most populous county in Wyoming
Laramie County ranks first at 101,783 residents and Niobrara County last at 2,301 residents. The top value is 44 times the bottom one.
- 01Laramie County101,783
- 02Natrona County80,410
- 03Campbell County47,946
- 04Sweetwater County41,273
- 05Fremont County39,721
- 06Albany County39,288
- 07Sheridan County32,978
- 08Park County31,082
- 09Teton County23,272
- 10Lincoln County21,000
Least populous county in Wyoming
The smallest populations, fewest first. Estimates for small counties carry more uncertainty than those for large ones.
- 01Niobrara County2,301
- 02Hot Springs County4,625
- 03Weston County6,866
- 04Washakie County7,662
- 05Crook County7,775
Most densely populated county in Wyoming
Laramie County ranks first at 37.9 people per square mile and Niobrara County last at 0.9 people per square mile. The top value is 43 times the bottom one.
- 01Laramie County37.9
- 02Natrona County15.1
- 03Sheridan County13.1
- 04Campbell County10.0
- 05Uinta County9.9
- 06Albany County9.2
- 07Teton County5.8
- 08Goshen County5.7
- 09Lincoln County5.2
- 10Park County4.5
Highest median household income in Wyoming
Teton County ranks first at $130,156 and Niobrara County last at $56,477. The top value is 2.3 times the bottom one.
- 01Teton County$130,156
- 02Campbell County$89,749
- 03Lincoln County$88,037
- 04Uinta County$79,086
- 05Sublette County$78,217
- 06Crook County$77,897
- 07Converse County$77,224
- 08Sweetwater County$76,442
- 09Laramie County$75,131
- 10Natrona County$73,110
Towns and cities in Wyoming
The Census Vintage 2024 subcounty estimates list 43 incorporated places in Wyoming with 1,000 or more residents, holding 385,046 people together, or 66% of the state total. 16 of them have 5,000 or more. The northernmost is Ranchester at 44.908° N and the southernmost is Cheyenne at 41.129° N. Among places of 5,000+, Sheridan grew fastest from July 2020 to July 2024, by 5.6%.
- 01Cheyenne65,704
- 02Casper58,823
- 03Gillette33,846
- 04Laramie32,957
- 05Rock Springs22,967
- 06Sheridan19,813
- 07Evanston11,691
- 08Green River11,474
- 09Riverton10,953
- 10Jackson10,680
- 11Cody10,391
- 12Rawlins7,952
Cheyenne, the capital
28.7% of Wyoming's place population, 110,552 of 385,046 people, lives in places within 100 miles of Cheyenne. That ranks 43rd of 51 for how central the capital is. The most remote town of 1,000 to 9,999 people is Rawlins, 86 miles in a straight line from the nearest place of 10,000+ (Casper).
See all states in the capital radius ranking and the most remote towns ranking. Sunrise and sunset times for Cheyenne, month by month, are on the Cheyenne daylight page.
States bordering Wyoming
Wyoming borders 6 states or districts. The nearest neighboring capital is Denver, 97 miles S of Cheyenne in a straight line.
UTM zones in Wyoming
The internal points of Wyoming's counties fall in UTM zones 12, 13. Zones are 6 degrees of longitude wide, numbered from 180° W: zone = floor((longitude + 180) / 6) + 1. Because Wyoming spans 2 zones, no single UTM zone covers the whole state.
All 23 counties in Wyoming
Sort by any column. The small orange number marks the top 3 in the state by population.
| FIPS | |||||
|---|---|---|---|---|---|
| 56021 | Laramie County | 101,783#1 | 2,686 | 37.9 | $75,131 |
| 56025 | Natrona County | 80,410#2 | 5,341 | 15.1 | $73,110 |
| 56005 | Campbell County | 47,946#3 | 4,802 | 10.0 | $89,749 |
| 56037 | Sweetwater County | 41,273 | 10,427 | 4.0 | $76,442 |
| 56013 | Fremont County | 39,721 | 9,184 | 4.3 | $64,170 |
| 56001 | Albany County | 39,288 | 4,274 | 9.2 | $59,633 |
| 56033 | Sheridan County | 32,978 | 2,523 | 13.1 | $71,080 |
| 56029 | Park County | 31,082 | 6,939 | 4.5 | $70,330 |
| 56039 | Teton County | 23,272 | 3,997 | 5.8 | $130,156 |
| 56023 | Lincoln County | 21,000 | 4,075 | 5.2 | $88,037 |
| 56041 | Uinta County | 20,621 | 2,082 | 9.9 | $79,086 |
| 56007 | Carbon County | 14,250 | 7,898 | 1.8 | $67,773 |
| 56009 | Converse County | 13,766 | 4,255 | 3.2 | $77,224 |
| 56015 | Goshen County | 12,635 | 2,226 | 5.7 | $63,191 |
| 56003 | Big Horn County | 12,084 | 3,137 | 3.9 | $60,818 |
| 56035 | Sublette County | 8,965 | 4,886 | 1.8 | $78,217 |
| 56019 | Johnson County | 8,803 | 4,154 | 2.1 | $66,100 |
| 56031 | Platte County | 8,512 | 2,081 | 4.1 | $64,207 |
| 56011 | Crook County | 7,775 | 2,854 | 2.7 | $77,897 |
| 56043 | Washakie County | 7,662 | 2,239 | 3.4 | $62,794 |
| 56045 | Weston County | 6,866 | 2,398 | 2.9 | $66,429 |
| 56017 | Hot Springs County | 4,625 | 2,004 | 2.3 | $60,811 |
| 56027 | Niobrara County | 2,301 | 2,626 | 0.9 | $56,477 |
Sources and data as of
Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.
- 01Census Vintage 2024 county population estimates
- 02Census 2024 Gazetteer, counties
- 03Census SAIPE 2023 state and county estimates
- 04Census Vintage 2024 subcounty population estimates
- 05Census 2024 Gazetteer, places
- 06Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.