Tuolumne County's 2026 population is estimated at 53,433, reflecting a -0.43% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Tuolumne County is the 43rd largest county in California. The 2010 population was 55,164 and has grown -3.14% since 2010.
Data after 2023 is projected based on recent change
Overall: 48.4 years
Female: 50.7 years
Male: 45.4 years
There are 45,193 adults, (15,339 of whom are seniors) in Tuolumne County.
Female: 26,360 (48.4%)
Male: 28,138 (51.6%)
The racial composition of Tuolumne County includes 80.51% White, 3.38% 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 | 43,875 | 80.51% |
| Two or more races | 5,621 | 10.31% |
| Other race | 1,842 | 3.38% |
| Black or African American | 1,082 | 1.99% |
| Native American | 867 | 1.59% |
| Asian | 844 | 1.55% |
| Native Hawaiian or Pacific Islander | 367 | 0.67% |
Tuolumne County 's average per capita income is $47,694. Household income levels show a median of $77,404. The poverty rate stands at 10.44%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,278 | - |
| Families | $96,919 | $121,747 |
| Households | $77,404 | $104,076 |
| Non Families | $51,875 | $73,460 |
Average Income
Median Household Income
Poverty Rate