Madison County's estimated 2026 population is 17,391 with a growth rate of 0.7% in the past year according to the most recent United States census data. Madison County is the 41st largest county in Iowa. The 2010 population was 15,738 and has seen a growth of 10.5% since that time.
Data after 2023 is projected based on recent change
Overall: 40.6 years
Female: 41.8 years
Male: 39.4 years
There are 12,668 adults, (2,995 of whom are seniors) in Madison County.
Female: 8,407 (49.7%)
Male: 8,519 (50.3%)
The racial composition of Madison County includes 95.13% White, and smaller percentages for Two or more races, Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 16,101 | 95.13% |
| Two or more races | 504 | 2.98% |
| Black or African American | 149 | 0.88% |
| Asian | 76 | 0.45% |
| Other race | 72 | 0.43% |
| Native American | 16 | 0.09% |
| Native Hawaiian or Pacific Islander | 8 | 0.05% |
Madison County's average per capita income is $56,389. Household income levels show a median of $90,855. The poverty rate stands at 7.04%.
Name | Median | Mean |
|---|---|---|
| Married Families | $118,026 | - |
| Families | $110,706 | $125,207 |
| Households | $90,855 | $106,293 |
| Non Families | $50,919 | $62,625 |
Average Income
Median Household Income
Poverty Rate
