Gallatin County, MT Map
Official Census boundary of Gallatin County, Montana (FIPS 30031). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Gallatin County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
124,074
Households
51,215
Median household income
$93,528
Median age
34.2 years
Median home value
$667,600
Median gross rent
$1,694/mo
Owner-occupied homes
61.1%
Bachelor's degree or higher
54.3%
Below poverty level
9.5%
Land area
2,605.4 sq mi
Population density
48 / sq mi