Madison County Flag

Madison County

State:
Idaho
County Seat:
Rexburg

Madison County's estimated 2025 population is 53,725 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 42.93% since that time.

53,725
Total Population
115
Population Density (mi²)
8
Population Rank (State)
-411 -0.76%
Annual Population Growth

Madison County Population

Madison County Population

Data after 2023 is projected based on recent change

Demographics

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.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native Hawaiian or Pacific Islander

Native American

Race
Population
Percentage (of total)
White47,22088.13%
Two or more races3,0325.66%
Other race1,7093.19%
Asian7721.44%
Black or African American4920.92%
Native Hawaiian or Pacific Islander1860.35%
Native American1670.31%

Madison County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$66,367-
Families$63,442$101,910
Households$58,259$89,770
Non Families$45,207$45,965

$37,964

Average Income

$58,259

Median Household Income

26.84%

Poverty Rate