Platte County's estimated 2026 population is 115,397 with a growth rate of 0.96% in the past year according to the most recent United States census data. Platte County is the 11th largest county in Missouri. The 2010 population was 89,714 and has seen a growth of 28.63% since that time.
Data after 2023 is projected based on recent change
The racial composition of Platte County includes 79.66% White, 7.65% Black or African American, and smaller percentages for other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (79.66%)
Black or African American (7.65%)
Two or more races (6.81%)
Other race (2.56%)
Asian (2.5%)
Native Hawaiian or Pacific Islander (0.57%)
Native American (0.25%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 86,636 | 79.66% |
| Black or African American | 8,316 | 7.65% |
| Two or more races | 7,407 | 6.81% |
| Other race | 2,781 | 2.56% |
| Asian | 2,718 | 2.5% |
| Native Hawaiian or Pacific Islander | 618 | 0.57% |
| Native American | 275 | 0.25% |
Married
Widowed
Divorced
Separated
Never Married
Platte County's average per capita income is $58,028. Household income levels show a median of $95,748. The poverty rate stands at 6.85%.
Name | Median | Mean |
|---|---|---|
| Married Families | $134,309 | $164,918 |
| Families | $118,570 | $147,427 |
| Households | $95,748 | $122,134 |
| Non Families | $56,020 | $68,463 |
Average Income
Median Household Income
Poverty Rate