Pettis County's 2026 population is estimated at 44,191, reflecting a 0.45% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Pettis County is the 26th largest county in Missouri. The 2010 population was 42,263 and has grown 4.56% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.2 years
Female: 40.1 years
Male: 36.6 years
There are 32,510 adults, (7,516 of whom are seniors) in Pettis County.
Female: 21,534 (49.6%)
Male: 21,863 (50.4%)
The racial composition of Pettis County includes 84.2% White, 3.8% other race, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 36,541 | 84.2% |
| Two or more races | 3,473 | 8% |
| Other race | 1,648 | 3.8% |
| Black or African American | 1,073 | 2.47% |
| Asian | 299 | 0.69% |
| Native American | 200 | 0.46% |
| Native Hawaiian or Pacific Islander | 163 | 0.38% |
Pettis County 's average per capita income is $40,397. Household income levels show a median of $60,430. The poverty rate stands at 15.6%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $81,196 | $96,604 |
| Families | $71,550 | $87,195 |
| Households | $60,430 | $76,820 |
| Non Families | $35,627 | $52,156 |
Average Income
Median Household Income
Poverty Rate
