Montgomery County's 2026 population is estimated at 29,865, reflecting a -0.98% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Montgomery County is the 20th largest county in Kansas. The 2010 population was 35,353 and has grown -15.52% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.2 years
Female: 42.9 years
Male: 38.8 years
There are 23,622 adults, (6,283 of whom are seniors) in Montgomery County.
Female: 15,616 (50.5%)
Male: 15,324 (49.5%)
The racial composition of Montgomery County includes 78.28% White, 3.81% Black or African American, and smaller percentages for Native American, other race, Native Hawaiian or Pacific Islander, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 24,221 | 78.28% |
| Two or more races | 3,981 | 12.87% |
| Black or African American | 1,180 | 3.81% |
| Native American | 730 | 2.36% |
| Other race | 717 | 2.32% |
| Native Hawaiian or Pacific Islander | 59 | 0.19% |
| Asian | 52 | 0.17% |
Montgomery County 's average per capita income is $41,209. Household income levels show a median of $55,697. The poverty rate stands at 15.92%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $86,172 | $98,725 |
| Families | $75,089 | $85,626 |
| Households | $55,697 | $69,564 |
| Non Families | $32,272 | $42,345 |
Average Income
Median Household Income
Poverty Rate