Irwin is a city located in Shelby County, Iowa. Irwin has a 2025 population of 318. Irwin is currently declining at a rate of -0.31% annually and its population has decreased by -1.24% since the most recent census, which recorded a population of 322 in 2020.
The average household income in Irwin is $67,184 with a poverty rate of 12.93%.The median age in Irwin is 46.6 years: 29 years for males, and 53.2 years for females.
Data after 2023 is projected based on recent change
The racial composition of Irwin includes 92.93% White, and smaller percentages for other race and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 276 | 92.93% |
| Two or more races | 16 | 5.39% |
| Other race | 5 | 1.68% |
Married
Widowed
Divorced
Separated
Never Married
Irwin's average per capita income is $48,438. Household income levels show a median of $47,917. The poverty rate stands at 12.93%.
Name | Median | Mean |
|---|---|---|
| Married Families | $115,938 | - |
| Families | $106,250 | $91,671 |
| Households | $47,917 | $67,184 |
| Non Families | $31,181 | $38,662 |
Average Income
Median Household Income
Poverty Rate