Buchanan County's estimated 2026 population is 84,320 with a growth rate of 0.44% in the past year according to the most recent United States census data. Buchanan County is the 15th largest county in Missouri. The 2010 population was 89,071 and has seen a growth of -5.33% since that time.
Data after 2023 is projected based on recent change
The racial composition of Buchanan County includes 82.26% White, 5.74% Black or African American, 3.01% other race, and smaller percentages for Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (82.26%)
Two or more races (6.64%)
Black or African American (5.74%)
Other race (3.01%)
Asian (1.2%)
Native Hawaiian or Pacific Islander (0.71%)
Native American (0.42%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 68,982 | 82.26% |
| Two or more races | 5,568 | 6.64% |
| Black or African American | 4,812 | 5.74% |
| Other race | 2,528 | 3.01% |
| Asian | 1,010 | 1.2% |
| Native Hawaiian or Pacific Islander | 599 | 0.71% |
| Native American | 356 | 0.42% |
Married
Widowed
Divorced
Separated
Never Married
Buchanan County's average per capita income is $42,493. Household income levels show a median of $59,423. The poverty rate stands at 16.88%.
Name | Median | Mean |
|---|---|---|
| Married Families | $89,425 | $113,859 |
| Families | $72,210 | $96,101 |
| Households | $59,423 | $80,717 |
| Non Families | $35,327 | $52,184 |
Average Income
Median Household Income
Poverty Rate