Madison County's estimated 2026 population is 56,401 with a growth rate of 0.76% in the past year according to the most recent United States census data. Madison County is the 8th largest county in Idaho. The 2010 population was 37,588 and has seen a growth of 50.05% since that time.
Data after 2023 is projected based on recent change
The racial composition of Madison County includes 88.13% White, 3.19% other race, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (88.13%)
Two or more races (5.66%)
Other race (3.19%)
Asian (1.44%)
Black or African American (0.92%)
Native Hawaiian or Pacific Islander (0.35%)
Native American (0.31%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 47,220 | 88.13% |
| Two or more races | 3,032 | 5.66% |
| Other race | 1,709 | 3.19% |
| Asian | 772 | 1.44% |
| Black or African American | 492 | 0.92% |
| Native Hawaiian or Pacific Islander | 186 | 0.35% |
| Native American | 167 | 0.31% |
Married
Widowed
Divorced
Separated
Never Married
Madison County's average per capita income is $37,964. Household income levels show a median of $58,259. The poverty rate stands at 26.84%.
Name | Median | Mean |
|---|---|---|
| Married Families | $66,367 | - |
| Families | $63,442 | $101,910 |
| Households | $58,259 | $89,770 |
| Non Families | $45,207 | $45,965 |
Average Income
Median Household Income
Poverty Rate
