Buchanan County's 2026 population is estimated at 17,940, reflecting a -1.89% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Buchanan County is the 84th largest county in Virginia. The 2010 population was 24,091 and has grown -25.53% since 2010.
Data after 2023 is projected based on recent change
Overall: 47.8 years
Female: 50.5 years
Male: 45.6 years
There are 16,163 adults, (4,633 of whom are seniors) in Buchanan County.
Female: 9,343 (48.1%)
Male: 10,072 (51.9%)
The racial composition of Buchanan County includes 93.77% White, 3.87% Black or African American, and smaller percentages for Two or more races, Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 18,205 | 93.77% |
| Black or African American | 751 | 3.87% |
| Two or more races | 284 | 1.46% |
| Asian | 152 | 0.78% |
| Other race | 15 | 0.08% |
| Native American | 8 | 0.04% |
Buchanan County 's average per capita income is $44,103. Household income levels show a median of $42,886. The poverty rate stands at 25.22%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $55,256 | - |
| Families | $51,617 | $68,010 |
| Households | $42,886 | $56,349 |
| Non Families | $21,303 | $29,283 |
Average Income
Median Household Income
Poverty Rate
