Madison County is a county of 9,223 people in Montana. At a median age of 52.2, this is an older place than the country as a whole. That puts it in the top 7% of US counties for household income. There are 3 people per square mile. 81% of homes are owner-occupied. The population is up 35% since 2000.
At a glance
Lower income
median household income $75,250, below the US median
US median: $82,259
Older
median age 52.2
US median: 38.9
Average education
33% hold a bachelor's degree
US average: 36%
Less affordable
home values up 122%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Madison County
What changed most since 1990
Median home value (2024 dollars)$141,124 → $470,100(+233%)US over the same years: +67%
Median age37.8 → 52.2(+14.4 years)US over the same years: +6.0 years
Poverty rate18.4% → 6.2%(−12.2 pts)US over the same years: −0.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)13.6%(103)
US avg: 26.4%
Gulf War (1990s)5.2%(39)
US avg: 24.3%
Vietnam era56.5%(427)
US avg: 33.1%
Korean War4.8%(36)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 756 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Madison County, decade by decade
Madison County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
5,989
$52,960
$141,124
19.7%
4.6
2000
6,851
$55,074
$211,858
25.5%
9.8
2010
7,691
$61,856
$345,401
33.8%
11.2
2020
8,623
$67,743
$384,095
33.8%
18.4
2024
9,223
$75,250
$470,100
32.6%
22.3
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
