Platte County's 2026 population is estimated at 8,374, reflecting a -0.82% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Platte County is the 18th largest county in Wyoming. The 2010 population was 8,665 and has grown -3.36% since 2010.
Data after 2023 is projected based on recent change
Overall: 47 years
Female: 49.9 years
Male: 46.2 years
There are 6,870 adults, (2,333 of whom are seniors) in Platte County.
Female: 4,192 (48.7%)
Male: 4,420 (51.3%)
The racial composition of Platte County includes 86.97% White, and smaller percentages for Native American, Native Hawaiian or Pacific Islander, other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,490 | 86.97% |
| Two or more races | 990 | 11.5% |
| Native American | 35 | 0.41% |
| Native Hawaiian or Pacific Islander | 34 | 0.39% |
| Other race | 34 | 0.39% |
| Black or African American | 29 | 0.34% |
Platte County 's average per capita income is $49,184. Household income levels show a median of $67,718. The poverty rate stands at 7.74%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $100,876 | - |
| Families | $92,500 | $105,176 |
| Households | $67,718 | $85,724 |
| Non Families | $39,338 | $54,480 |
Average Income
Median Household Income
Poverty Rate
