Madison County, Montana Demographics 2026

Name: Madison County, Montana Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Madison County, Montana has a population of 9,223, the 24th most populous county in Montana. The median household income is $75,250 and the median home value is $470,100. The poverty rate is 6.2%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Madison County Quick Facts

Population 9,223

Median Household Income $75,250

Median Home Value $470,100

Poverty Rate 6.2%

Unemployment Rate 3.1%

Median Age 52.2 years

Homeownership Rate 81.0%

Affordability Ratio 6.2x

Bachelor's Degree+ 32.6%

High School Graduation 93.9%

Cities/Places 13

Population 9,223 24th of 56

Median Income $75,250 4% higher than state

Poverty Rate 6.2%

Unemployment 3.1%

How Madison County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	8,975	9,223	+2.8%
Median household income	$67,420	$75,250	+11.6%
Median home value	$440,500	$470,100	+6.7%

Median Household Income

Madison

$75,250

$72,509

National

$80,734

Median Home Value

Madison

$470,100

$375,800

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 9.6%

$25K-$50K 22.7%

$50K-$100K 32.8%

$100K+ 34.9%

Detailed income brackets

Under $10K

1.6%

$10K-$15K

4.1%

$15K-$20K

1.9%

$20K-$25K

2.0%

$25K-$30K

4.4%

$30K-$35K

2.0%

$35K-$40K

5.2%

$40K-$45K

3.6%

$45K-$50K

7.5%

$50K-$60K

5.2%

$60K-$75K

12.3%

$75K-$100K

15.3%

$100K-$125K

12.2%

$125K-$150K

8.2%

$150K-$200K

7.5%

$200K+

7.0%

Employment

3.1% Unemployment Rate State: 3.6%|National: 5.2%

55.2% Labor Force Participation

Housing Overview

Owner 81.0%

Renter 19.0%

Affordability Index Expensive

6.2x home value to income ratio

Median gross rent $1,000/mo 15.9% of median household income annually

People & Demographics

Age Distribution

Under 18

16.3%

18-34

14.5%

35-54

22.5%

55-74

35.2%

75+

11.4%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 29 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Madison County

City	Population	Median Income	Poverty	Home Value
Sheridan	869	$87,321	3.5%	$318,400
Ennis	777	$69,650	9.4%	$402,500
McAllister	202	N/A	0.0%	N/A
Twin Bridges	201	$57,188	11.9%	$236,800
Virginia City	129	$61,875	7.0%	$351,900
Brandon	115	$110,577	2.6%	$452,800
Harrison	95	$72,656	34.7%	N/A
Alder	92	$42,500	9.8%	$418,200
Silver Star	89	$48,438	9.0%	$387,500
Pony	78	$66,667	2.6%	$333,300
Jeffers	60	N/A	13.3%	N/A
Norris	17	N/A	82.3%	N/A
Mammoth	15	N/A	0.0%	N/A

Explore Montana Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Madison County is located in Montana with a total population of 9,223. It is the 24th most populous county out of 56 in Montana. The county encompasses 13 Census-designated places.

Age Demographics

The median age in Madison County is 52.2 years. This is 29% higher than the state median of 40.4 years. 11.4% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Madison County is $75,250. This is 4% higher than the state median of $72,509. It is also 7% lower than the national median of $80,734. The poverty rate stands at 6.2%. This is 46% lower than the state poverty rate of 11.5%. The unemployment rate is 3.1%. This is 14% lower than the state rate of 3.6%. The median home value is $470,100. Housing costs are 25% higher than the state median of $375,800. The home-value-to-income ratio of 6.2x suggests that housing affordability is a significant concern for many residents. 81.0% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 69.2%.

Race & Ethnicity

Madison County has a predominantly White (non-Hispanic) population, comprising 90.4% of all residents. Hispanic or Latino residents account for 3.6%.

Education

32.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.9%.

Data Sources & Methodology

All figures for Madison County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Montana and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Madison County, Montana?

Madison County has a population of 9,223, making it the 24th most populous county in Montana.

What is the median income in Madison County?

The median household income in Madison County is $75,250 with a poverty rate of 6.2%.

How many cities are in Madison County, Montana?

Madison County contains 13 Census-designated places.