US Census Data

Gallatin County vs Yellowstone County

A side-by-side comparison of Gallatin County and Yellowstone County: population, income, housing, and more.

Gallatin County and Yellowstone County are counties in Montana. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Yellowstone County has the higher population (167,340 vs 122,194 in Gallatin County). Gallatin County has the higher median household income ($87,454 vs $74,400 in Yellowstone County). Gallatin County has the higher median home value ($604,900 vs $317,600 in Yellowstone County).

Population, income & housing

Gallatin CountyYellowstone County
Population122,194167,340
Median age33.8 yrs38.7 yrs
Median household income$87,454$74,400
Median home value$604,900$317,600
Median gross rent$1,574$1,084
Housing units55,58973,363
Homeownership rate61.5%69.3%
Bachelor's degree or higher53.1%33.9%
Unemployment rate2.3%3.4%

Trends (ACS 5-year, 2019–2023)

Gallatin CountyYellowstone County
Population108,063 → 122,194 (+13.1%)159,008 → 167,340 (+5.2%)
Median household income$66,397 → $87,454 (+31.7%)$61,264 → $74,400 (+21.4%)
Median home value$357,100 → $604,900 (+69.4%)$226,000 → $317,600 (+40.5%)
Median gross rent$1,074 → $1,574 (+46.6%)$892 → $1,084 (+21.5%)

Gallatin County

Population
108,063122,194
Median household income
$66,397$87,454
Median home value
$357,100$604,900
Median gross rent
$1,074$1,574

Yellowstone County

Population
159,008167,340
Median household income
$61,264$74,400
Median home value
$226,000$317,600
Median gross rent
$892$1,084

Age & race/ethnicity

Age distribution (share)

Gallatin CountyYellowstone County
Under 54.8%5.7%
5 to 1714.4%17.5%
18 to 2416.0%7.9%
25 to 3416.4%13.8%
35 to 4414.2%13.4%
45 to 5410.7%11.3%
55 to 6410.2%12.5%
65 to 748.6%10.6%
75 and over4.6%7.2%

Race & ethnicity (share)

Gallatin CountyYellowstone County
White (non-Hispanic)88.3%83.9%
Black or African American0.5%0.5%
American Indian & Alaska Native0.6%3.8%
Asian1.3%0.8%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.7%0.6%
Two or more races3.5%4.0%
Hispanic or Latino5.1%6.4%

Educational attainment (age 25+)

Share of adults 25+

Gallatin CountyYellowstone County
No high school diploma2.8%4.7%
High school graduate18.2%29.6%
Some college or associate's25.8%31.7%
Bachelor's degree33.2%23.3%
Graduate or professional degree19.9%10.7%

Commute to work

How workers get to work (share)

Gallatin CountyYellowstone County
Drove alone68.1%77.9%
Carpooled8.0%9.7%
Public transit0.5%0.9%
Walked5.4%2.0%
Bicycle2.0%0.5%
Worked from home14.9%8.0%
Other means1.0%0.9%

Housing

Units in structure (share)

Gallatin CountyYellowstone County
1-unit, detached59.5%65.5%
1-unit, attached9.5%5.7%
2 to 4 units11.6%7.5%
5 to 19 units9.3%5.9%
20 or more units4.6%5.2%
Mobile home & other5.5%10.0%

Poverty & households

Gallatin CountyYellowstone County
Poverty rate10.2%10.2%
Average household size2.352.37
Mean commute (minutes)1919
Median year structure built19971982

Full profiles

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