Fremont County, Wyoming Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 5th-largest in Wyoming
The population of Fremont County, Wyoming is 39,472 as of the 2023 American Community Survey, making it the 5th-largest county in Wyoming. The median household income is $64,646, the median home value is $252,700, and the median age is 39.4.
The population of Fremont County has declined 1.2% since 2010 (40,199 → 39,721), a -0.09% annualized rate.
39,472
Population
-0.09%
Annual growth
4
People / sq mi
$64,646
Median Income
$252,700
Median Home Value
Fremont County covers 9,184 sq mi of land at 4.3 people per square mile.
About Fremont County, WY
What distinguishes Fremont County is density: among the most sparsely settled of US counties, around 4 people per square mile. With 39,472 residents, Fremont County is a county in Wyoming. That makes it one of the ten largest counties in Wyoming in the country, at #5 by population.
The typical household here earns about $64,646, below the US median of $78,538. The poverty rate is 8.0%, below the national 12.4%. The median home value is $252,700, with typical rent around $858.
25.3% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. Around 9.1% of workers work from home, below the national 14.0%, and the average commute runs about 17 minutes each way.
Fremont County Population History (2010-2024)
The county of Fremont County had a population of 40,199 in 2010 and 39,721 in 2024, a -1.2% growth over 14 years. The peak was 41,029 in 2012. Average annual growth rate: -0.08%.
39,721
Population (2024)
40,199
Population (2010)
41,029
Peak (2012)
-0.08%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 40,199 |
| 2011 | 40,525 |
| 2012 | 41,029 |
| 2013 | 40,937 |
| 2014 | 40,595 |
| 2015 | 40,261 |
| 2016 | 40,250 |
| 2017 | 39,865 |
| 2018 | 39,656 |
| 2019 | 39,467 |
| 2020 | 39,190 |
| 2021 | 39,408 |
| 2022 | 39,545 |
| 2023 | 39,800 |
| 2024 | 39,721 |
Race & Ethnicity
| White | 71.8% |
| Black or African American | 0.5% |
| Asian | 0.4% |
| Hispanic or Latino (any race) | 22.2% |
| Two or More Races | 0.0% |
Age & Sex
39.4
Median Age
49.3%
Female
50.7%
Male
19.7%
Age 65+
Age Distribution
Children (under 15): 20.3% · Seniors (65+): 19.7%
Income & Poverty
| Median household income | $64,646$-10,169 vs state |
| Mean household income | $82,157 |
| Per-capita income | $32,717 |
| Poverty rate | 8.0%+0.9% vs state |
| Unemployment rate | 4.9% |
| Employment-to-population | 56.5% |
Top Industries by Employment
The largest employment sector in Fremont County is professional & business services, accounting for 29.2% of workers.
How residents commute
0.4%
Drive alone
4.1%
Carpool
75.8%
Public transit
9.1%
Work from home
17.1 min
Avg commute
Housing
$252,700$-32,400 vs state
Median home value
$858
Median rent
70.7%
Homeownership rate
17,471
Total housing units
84.8%
Occupied
15.2%
Vacant
29.3%
Renter-occupied
Social & access
81.4%
With health insurance
92.3%
With broadband internet
44.8%
Foreign-born
8.6%
Veterans (18+)
15.2%
With a disability
93.4%
Speak language other than English at home
Education
93.5%
High School+
25.3%
Bachelor's+
Largest cities in Wyoming
Other counties in Wyoming
Part of Wyoming
Metro areas in Wyoming
County rankings
Frequently Asked Questions
Fremont County, Wyoming has a population of 39,472 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest county in Wyoming. Population density is 4 people per square mile.
The population of Fremont County has declined 1.2% since 2010 (40,199 → 39,721), a -0.09% annualized rate.
The median household income in Fremont County, Wyoming is $64,646, with mean (average) household income of $82,157 and per-capita income of $32,717. 8.0% of residents live below the federal poverty level.
In Fremont County, the largest racial and ethnic groups are White (71.8%), Hispanic or Latino (22.2%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Fremont County, Wyoming is 39.4 years. Residents are 49.3% female and 50.7% male.
The median home value in Fremont County is $252,700 and median monthly rent is $858. 70.7% of occupied housing units are owner-occupied. The county has 17,471 total housing units, 15.2% of which are vacant.
The largest employment sector in Fremont County, Wyoming is professional, scientific, and management services, employing 29.2% of workers. The unemployment rate is 4.9%.
Cheyenne is among the largest cities associated with Fremont County, Wyoming, with a population of 64,976.
Fremont County, WY Climate
Fremont County, WY has an average annual temperature of 6.8°C (44°F) and receives about 229 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
6.8°C
Avg Temp
229
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -8° / 18° | 7 mm |
| February | -4° / 25° | 6 mm |
| March | 2° / 35° | 13 mm |
| April | 7° / 44° | 31 mm |
| May | 12° / 53° | 47 mm |
| June | 18° / 64° | 27 mm |
| July | 21° / 70° | 19 mm |
| August | 20° / 69° | 14 mm |
| September | 14° / 58° | 24 mm |
| October | 8° / 46° | 20 mm |
| November | -1° / 30° | 13 mm |
| December | -7° / 19° | 8 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Fremont County, WY
The most comfortable months to visit Fremont County, WY are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -15°C low). May is usually the wettest month.
Where to stay near Fremont County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.