Glenn County's 2026 population is estimated at 28,532, reflecting a 0.4% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Glenn County is the 47th largest county in California. The 2010 population was 28,125 and has grown 1.45% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.2 years
Female: 37.3 years
Male: 35.5 years
There are 20,872 adults, (4,893 of whom are seniors) in Glenn County.
Female: 13,930 (48.9%)
Male: 14,564 (51.1%)
The racial composition of Glenn County includes 55.27% White, 22.51% other race, 3% Asian, and smaller percentages for Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 15,749 | 55.27% |
| Other race | 6,414 | 22.51% |
| Two or more races | 4,979 | 17.47% |
| Asian | 856 | 3% |
| Native American | 434 | 1.52% |
| Black or African American | 62 | 0.22% |
Glenn County 's average per capita income is $43,453. Household income levels show a median of $67,139. The poverty rate stands at 15.95%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $89,956 | - |
| Families | $79,784 | $96,194 |
| Households | $67,139 | $84,971 |
| Non Families | $35,068 | $51,140 |
Average Income
Median Household Income
Poverty Rate