Westby is a town located in Sheridan County, Montana. Westby has a 2025 population of 160 . Westby is currently declining at a rate of -1.23% annually and its population has decreased by -4.19% since the most recent census, which recorded a population of 167 in 2020.
The average household income in Westby is $50,364 with a poverty rate of 10.28%. The median age in Westby is 53.7 years: 60 years for males, and 53 years for females. For every 100 females there are 97.7 males.
Data after 2023 is projected based on recent change
The racial composition of Westby includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 253 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Westby's average per capita income is $53,125. Household income levels show a median of $24,583. The poverty rate stands at 10.28%.
Name | Median | Mean |
|---|---|---|
| Married Families | $49,643 | - |
| Families | $49,583 | $74,926 |
| Households | $24,583 | $50,364 |
| Non Families | $23,533 | $30,463 |
Average Income
Median Household Income
Poverty Rate