Madison County
Madison County has notably lower household income than the US average, with a median household income of $60,160. The county has grown rapidly, with population up 99% since 2000. Median home value has more than tripled since 2000, reaching $414,800. At a median age of 21.4, residents skew younger than the country as a whole. The poverty rate of 24.5% is well above the national figure.
Population & growth
PEP 2025 EST:55,172 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 6 more hispanic origin groups with data
+ 29 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Madison County
Compare Madison County to nearby counties
How many people live in Madison County, Idaho?
Madison County, Idaho has about 54,618 residents according to the 2024 American Community Survey.
What is the median household income in Madison County, Idaho?
The typical household in Madison County, Idaho earns about $60,160 a year. Half of households make more than that, and half make less.
Is Madison County, Idaho expensive?
In Madison County, Idaho, the median home is worth about $414,800, and the typical rent is about $1,014 a month.
How educated are people in Madison County, Idaho?
About 41.8% of adults age 25 and over in Madison County, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Madison County, Idaho?
About 24.5% of people in Madison County, Idaho live below the federal poverty line.
Has Madison County, Idaho grown since 1990?
Yes, Madison County, Idaho has grown since 1990. The population has added about 30,944 residents, a change of about 131 percent over that period.
Explore from here
DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024