Montgomery County's 2026 population is estimated at 818,149, reflecting a 4.37% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Montgomery County is the 11th largest county in Texas. The 2010 population was 459,223 and has grown 78.16% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.2 years
Female: 37.7 years
Male: 36.6 years
There are 507,403 adults, (94,057 of whom are seniors) in Montgomery County.
Female: 344,177 (50.3%)
Male: 340,255 (49.7%)
The racial composition of Montgomery County includes 66.77% White, 6.37% Black or African American, 5.13% other race, 3.42% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 456,971 | 66.77% |
| Two or more races | 121,424 | 17.74% |
| Black or African American | 43,569 | 6.37% |
| Other race | 35,100 | 5.13% |
| Asian | 23,374 | 3.42% |
| Native American | 3,486 | 0.51% |
| Native Hawaiian or Pacific Islander | 508 | 0.07% |
Montgomery County 's average per capita income is $61,329. Household income levels show a median of $97,701. The poverty rate stands at 9.44%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $133,826 | $172,367 |
| Families | $116,907 | $154,914 |
| Households | $97,701 | $135,795 |
| Non Families | $54,229 | $76,033 |
Average Income
Median Household Income
Poverty Rate
