What is the population of Gallatin County, MT?
Gallatin County in Montana has a population of 122,194, per Census ACS 5-Year estimates. The median household income is $87,454 and the median age is 33.8.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Gallatin County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Gallatin County in Montana has a population of 122,194, per Census ACS 5-Year estimates. The median household income is $87,454 and the median age is 33.8.