Frederick County's 2026 population is estimated at 309,643, reflecting a 1.7% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Frederick County is the 7th largest county in Maryland. The 2010 population was 234,239 and has grown 32.19% since 2010.
Data after 2023 is projected based on recent change
Overall: 39 years
Female: 39.6 years
Male: 38.5 years
There are 220,052 adults, (43,882 of whom are seniors) in Frederick County.
Female: 145,083 (50.5%)
Male: 141,965 (49.5%)
The racial composition of Frederick County includes 67.5% White, 10.5% Black or African American, 5.93% Asian, 4.25% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 193,768 | 67.5% |
| Two or more races | 32,859 | 11.45% |
| Black or African American | 30,128 | 10.5% |
| Asian | 17,011 | 5.93% |
| Other race | 12,189 | 4.25% |
| Native American | 938 | 0.33% |
| Native Hawaiian or Pacific Islander | 155 | 0.05% |
Frederick County 's average per capita income is $73,399. Household income levels show a median of $122,002. The poverty rate stands at 6%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $164,344 | $187,348 |
| Families | $145,108 | $167,137 |
| Households | $122,002 | $148,300 |
| Non Families | $72,461 | $90,445 |
Average Income
Median Household Income
Poverty Rate
