Voltaire is located in Sherman County, Kansas. Voltaire has a 2025 population of 225. Voltaire is currently declining at a rate of -0.44% annually and its population has decreased by -0.44% since the most recent census, which recorded a population of 226 in 2020.
The average household income in Voltaire is $133,406 with a poverty rate of 5.2%.The median age in Voltaire is 50.6 years: 50.8 years for males, and 47.7 years for females.
Data after 2023 is projected based on recent change
The racial composition of Voltaire includes 95.41% White, 4.28% Black or African American, and smaller percentages for other race and multiracial populations.
White (95.4%)
Black or African American (4.3%)
Other race (0.3%)
Race | Population | Percentage (of total) |
---|---|---|
White | 312 | 95.41% |
Black or African American | 14 | 4.28% |
Other race | 1 | 0.31% |
Married
Widowed
Divorced
Separated
Never Married
Voltaire's average per capita income is $49,271. Household income levels show a median of $0. The poverty rate stands at 5.2%.
Name | Median | Mean |
---|---|---|
Married Families | $197,893 | - |
Families | $197,536 | $142,459 |
Households | - | $133,406 |
Non Families | - | - |
Average Income
Median Household Income
Poverty Rate