Sweetwater County's estimated 2026 population is 41,184 with a growth rate of -0.2% in the past year according to the most recent United States census data. Sweetwater County is the 4th largest county in Wyoming. The 2010 population was 43,580 and has seen a growth of -5.5% since that time.
Data after 2023 is projected based on recent change
Overall: 37.9 years
Female: 37.9 years
Male: 37.8 years
There are 31,165 adults, (6,131 of whom are seniors) in Sweetwater County.
Female: 20,234 (48.7%)
Male: 21,308 (51.3%)
The racial composition of Sweetwater County includes 80.75% White, 6.14% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 33,545 | 80.75% |
| Two or more races | 4,453 | 10.72% |
| Other race | 2,552 | 6.14% |
| Black or African American | 566 | 1.36% |
| Native American | 226 | 0.54% |
| Asian | 197 | 0.47% |
| Native Hawaiian or Pacific Islander | 3 | 0.01% |
Sweetwater County's average per capita income is $52,763. Household income levels show a median of $75,034. The poverty rate stands at 12.86%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,111 | - |
| Families | $98,067 | $120,838 |
| Households | $75,034 | $97,925 |
| Non Families | $43,297 | $55,594 |
Average Income
Median Household Income
Poverty Rate