Population 124,074 · Census ACS 2020–24
Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.
Median age by neighborhoodHistory and comparison ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of Gallatin County: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Gallatin County
Household size in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 2.37 | 2.41 | 2.68 |
| 2010–14 | 2.42 | 2.45 | 2.73 |
| 2015–19 | 2.39 | 2.44 | 2.71 |
| 2020–24 | 2.36 | 2.44 | 2.65 |
| Change | −0.01 | +0.03 | −0.03 |
Gallatin County is a place of small households, averaging 2.36 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Households are largest in the northwest and smallest in the east.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 34.0 | 39.9 | 37.7 |
| 2010–14 | 35.0 | 40.8 | 38.6 |
| 2015–19 | 35.5 | 41.5 | 39.6 |
| 2020–24 | 36.0 | 41.5 | 40.1 |
| Change | +2.0 | +1.6 | +2.3 |
With a median age of just 36.0, Gallatin County is far younger than the country as a whole (40.1), a population that tilts toward young adults, many of them living alone or as couples. The median age has climbed from 34.0 in 2006–10, mirroring the country. Few Montana counties are younger: only four of 56.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 6.8% | 9.4% | 12.3% |
| 2010–14 | 7.7% | 9.8% | 12.3% |
| 2015–19 | 6.1% | 8.7% | 11.6% |
| 2020–24 | 5.7% | 8.8% | 11.6% |
| Change | −1.2 pts | −0.6 pts | −0.6 pts |
Single-parent households are relatively rare in Gallatin County: 5.7% of households, against 11.6% nationally. The single-parent share has edged down 1.2 points since 2006–10, as it has nationally.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Gallatin County
Renters in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 37.7% | 31.0% | 33.3% |
| 2010–14 | 38.7% | 32.3% | 35.6% |
| 2015–19 | 38.8% | 31.9% | 36.0% |
| 2020–24 | 38.9% | 30.8% | 34.8% |
| Change | +1.3 pts | −0.1 pts | +1.5 pts |
About four in ten households in Gallatin County rent their homes (38.9%), a bit above the national share of 34.8%. Among homeowners, 39.2% have no mortgage at all, about the same as nationally. Since 2006–10, the renter share has edged up 1.3 points, as it has nationally. Only one other Montana county has a higher share of renters.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 10.6% | 13.2% | 11.4% |
| 2010–14 | 11.1% | 13.9% | 11.4% |
| 2015–19 | 9.8% | 14.1% | 11.1% |
| 2020–24 | 10.0% | 12.2% | 9.6% |
| Change | −0.6 pts | −0.9 pts | −1.8 pts |
Vacancy in Gallatin County is close to the national rate: 10.0% of homes are empty, against 9.6%. The rate is lower than in Montana overall (12.2%). Only four of Montana's 56 counties have a lower vacancy rate.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1987 | 1974 | 1974 |
| 2010–14 | 1989 | 1977 | 1975 |
| 2015–19 | 1992 | 1978 | 1977 |
| 2020–24 | 1996 | 1982 | 1980 |
| Change | +8 | +7 | +6 |
Gallatin County has newer housing than the country as a whole: the median home was built in 1996, versus 1980 nationally. The median year built has moved up from 1987 in 2006–10, a sign of steady new building. The newest homes are mostly in the center, the oldest in the southeast. Only one other Montana county has newer homes.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | $917 | $703 | $965 |
| 2010–14 | $985 | $775 | $1,040 |
| 2015–19 | $1,157 | $870 | $1,213 |
| 2020–24 | $1,744 | $1,189 | $1,571 |
| Change | +$827 | +$487 | +$606 |
The median renter in Gallatin County pays $1,744 a month for rent and utilities, above the national median of $1,571. Rents are up $827 a month from 2006–10, a 90% jump, faster than rents rose nationally. Rent takes 29.1% of the typical renter's income, just under the 30% mark often used to define affordable rent. Gallatin County has the highest rents of any Montana county.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Gallatin County
Bachelor's degrees in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 45.0% | 28.7% | 28.4% |
| 2010–14 | 47.1% | 29.8% | 29.6% |
| 2015–19 | 49.6% | 32.2% | 32.1% |
| 2020–24 | 54.6% | 35.3% | 35.6% |
| Change | +9.6 pts | +6.6 pts | +7.2 pts |
College graduates are unusually common in Gallatin County: 54.6% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. Since 2006–10, the share with a degree has risen 9.6 points, as it has nationally. Gallatin County has the highest share of college graduates of any Montana county.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 96.0% | 91.2% | 84.9% |
| 2010–14 | 96.5% | 92.6% | 86.1% |
| 2015–19 | 96.8% | 93.6% | 87.7% |
| 2020–24 | 97.2% | 94.6% | 89.3% |
| Change | +1.2 pts | +3.4 pts | +4.3 pts |
Finishing high school is nearly universal in Gallatin County: 97.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has edged up 1.2 points, a smaller shift than nationally. Only four of Montana's 56 counties have a higher share of high school graduates.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Gallatin County
| Period | Gallatin County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.0% | 5.7% | 8.1% |
| 2010–14 | 6.5% | 6.9% | 9.4% |
| 2015–19 | 2.9% | 4.2% | 5.6% |
| 2020–24 | 2.4% | 3.7% | 5.4% |
| Change | −2.6 pts | −2.0 pts | −2.7 pts |
Unemployment in Gallatin County has been low: just 2.4% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 2.6 points from 2006–10, in line with the national trend. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Gallatin County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Gallatin County | 2.36 | 36.0 | 5.7% | 38.9% | 10.0% | 1996 | $1,744 | 54.6% | 97.2% | 2.4% |
| Park County | 2.15 | 46.7 | 10.3% | 30.6% | 11.2% | 1977 | $1,205 | 39.5% | 96.1% | 2.6% |
| Stillwater County | 2.43 | 46.6 | 5.0% | 17.1% | 15.5% | 1986 | $1,036 | 31.9% | 95.4% | 3.0% |
| Yellowstone County | 2.42 | 39.4 | 10.1% | 30.4% | 7.0% | 1983 | $1,287 | 33.6% | 95.4% | 3.4% |
| Big Horn County | 3.47 | 33.2 | 20.2% | 33.3% | 14.4% | 1975 | $599 | 17.3% | 89.4% | 14.6% |
| Carter County | 2.14 | 57.0 | 1.9% | 37.8% | 27.7% | 1976 | $773 | 20.7% | 93.7% | 3.6% |
| Harding County | 2.22 | 46.3 | 4.0% | 23.5% | 27.6% | 1973 | $521 | 30.4% | 93.8% | 0.9% |
| Morrow County | 2.92 | 37.2 | 13.0% | 28.4% | 10.1% | 1982 | $1,064 | 9.9% | 74.9% | 2.3% |
| Perkins County | 2.23 | 45.3 | 9.2% | 21.6% | 25.0% | 1966 | $776 | 25.2% | 94.9% | 4.8% |
| Sherman County | 2.40 | 43.8 | 9.4% | 34.1% | 17.0% | 1960 | $1,021 | 16.0% | 91.1% | 0.9% |
| Klickitat County | 2.36 | 47.0 | 8.1% | 23.3% | 9.5% | 1984 | $1,191 | 31.0% | 89.4% | 5.8% |
All figures 2020–24.
Counties with similar populations: Bossier Parish, LA · Chautauqua County, NY · Richland County, OH · Henderson County, NC · Hunterdon County, NJ · Albemarle County, VA · Jefferson County, NY · Kennebec County, ME · La Crosse County, WI · LaPorte County, IN
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Gallatin County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.