Montgomery County's 2026 population is estimated at 11,673, reflecting a 0.7% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Montgomery County is the 77th largest county in Missouri. The 2010 population was 12,209 and has grown -4.39% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.6 years
Female: 44.7 years
Male: 42.2 years
There are 8,922 adults, (2,339 of whom are seniors) in Montgomery County.
Female: 5,640 (49.4%)
Male: 5,786 (50.6%)
The racial composition of Montgomery County includes 93.08% White, and smaller percentages for Black or African American, Native American, other race, Native Hawaiian or Pacific Islander, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 10,635 | 93.08% |
| Two or more races | 555 | 4.86% |
| Black or African American | 97 | 0.85% |
| Native American | 71 | 0.62% |
| Other race | 44 | 0.39% |
| Native Hawaiian or Pacific Islander | 15 | 0.13% |
| Asian | 9 | 0.08% |
Montgomery County 's average per capita income is $43,065. Household income levels show a median of $65,500. The poverty rate stands at 13.89%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,695 | - |
| Families | $75,122 | $89,174 |
| Households | $65,500 | $77,097 |
| Non Families | $32,353 | $43,664 |
Average Income
Median Household Income
Poverty Rate