Gallatin County, Montana

19 cities & places have their primary county here.

Population: 122,194
Median household income: $87,454
Median home value: $604,900

Gallatin County, Montana counts 122,194 residents. 19 cities and places have their primary county here. Its median household income of $87,454 runs above the Montana figure of $69,922.

From 2019 to 2023, Gallatin County's population grew 13.1% from 108,063 to 122,194, while its median household income rose 31.7% from $66,397 to $87,454.

The median resident is 33.8 years old. The largest age group is 25 to 34, 16.4% of residents.

Demographics

ACS 2019–2023

Population: 122,194
Median age: 33.8 yrs
Median household income: $87,454
Median home value: $604,900
Median gross rent: $1,574
Housing units: 55,589
Homeownership rate: 61.5%
Bachelor's degree or higher: 53.1%
Unemployment rate: 2.3%

Trends

ACS 5-year · 2019–2023

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

Year	Population	Median household income	Median home value	Median gross rent
2019	108,063	$66,397	$357,100	$1,074
2020	111,401	$70,124	$388,000	$1,131
2021	116,725	$76,208	$435,400	$1,212
2022	119,685	$83,434	$526,700	$1,405
2023	122,194	$87,454	$604,900	$1,574

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.8%

5 to 1714.4%

18 to 2416.0%

25 to 3416.4%

35 to 4414.2%

45 to 5410.7%

55 to 6410.2%

65 to 748.6%

75 and over4.6%

	Count	Share
Under 5	5,861	4.8%
5 to 17	17,638	14.4%
18 to 24	19,530	16.0%
25 to 34	20,078	16.4%
35 to 44	17,313	14.2%
45 to 54	13,026	10.7%
55 to 64	12,518	10.2%
65 to 74	10,555	8.6%
75 and over	5,675	4.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	107,856	88.3%
Black or African American	593	0.5%
American Indian & Alaska Native	756	0.6%
Asian	1,541	1.3%
Native Hawaiian & Pacific Islander	2	0.0%
Some other race	860	0.7%
Two or more races	4,314	3.5%
Hispanic or Latino (any race)	6,272	5.1%

Educational attainment (age 25+)

No high school diploma2.8%

High school graduate18.2%

Some college or associate's25.8%

Bachelor's degree33.2%

Graduate or professional degree19.9%

	Count	Share
No high school diploma	2,245	2.8%
High school graduate	14,388	18.2%
Some college or associate's	20,462	25.8%
Bachelor's degree	26,317	33.2%
Graduate or professional degree	15,753	19.9%

Commute to work

Mean travel time to work: 19 min

Drove alone68.1%

Carpooled8.0%

Public transit0.5%

Walked5.4%

Bicycle2.0%

Worked from home14.9%

Other means1.0%

How workers get to work

	Count	Share
Drove alone	46,970	68.1%
Carpooled	5,501	8.0%
Public transit	373	0.5%
Walked	3,746	5.4%
Bicycle	1,405	2.0%
Worked from home	10,253	14.9%
Other means	688	1.0%

Travel time

	Count	Share
Under 15 min	24,945	42.5%
15 to 29 min	24,010	40.9%
30 to 44 min	5,177	8.8%
45 to 59 min	1,769	3.0%
60+ min	2,782	4.7%

Households

Average household size: 2.35
Poverty rate: 10.2% (12,025 of 117,772)

	Count	Share
Family households	28,248	56.5%
Nonfamily households	21,783	43.5%

Housing

Median year structure built: 1997

Occupancy

	Count	Share
Occupied	50,031	90.0%
Vacant	5,558	10.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	30,780	61.5%
Renter-occupied	19,251	38.5%

1-unit, detached59.5%

1-unit, attached9.5%

2 to 4 units11.6%

5 to 19 units9.3%

20 or more units4.6%

Mobile home & other5.5%

Units in structure

	Count	Share
1-unit, detached	33,094	59.5%
1-unit, attached	5,267	9.5%
2 to 4 units	6,432	11.6%
5 to 19 units	5,194	9.3%
20 or more units	2,530	4.6%
Mobile home & other	3,072	5.5%

Geography

County GEOID: 30031
State: Montana
Land area: 2,605 sq mi
Water area: 28 sq mi
Center point: 45.5181, -111.1639