Silver Bow County, Montana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 8th-largest in Montana
The population of Silver Bow County, Montana is 35,589 as of the 2023 American Community Survey, making it the 8th-largest county in Montana. The median household income is $57,504, the median home value is $223,500, and the median age is 40.3.
The population of Silver Bow County has grown 5.5% since 2010 (34,235 → 36,134), a +0.39% annualized rate.
35,589
Population
+0.39%
Annual growth
50
People / sq mi
$57,504
Median Income
$223,500
Median Home Value
Silver Bow County covers 718 sq mi of land at 49.6 people per square mile.
About Silver Bow County, MT
Silver Bow County is a county in Montana with a population of 35,589. It ranks #8 among counties in Montana by population. The median age is 40.3, older than the national median. The population is 51.7% male and 48.3% female.
The median household income in Silver Bow County is $57,504, below the US median of $74,580. 9.0% of residents live below the federal poverty level. Home values sit at a median of $223,500, with monthly rent averaging $810. The homeownership rate of 70.5% is higher than the national rate of 64.8%.
Educational attainment in Silver Bow County reflects 27.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 16.2 minutes each way.
Silver Bow County Population History (2010-2024)
The county of Silver Bow County had a population of 34,235 in 2010 and 36,134 in 2024, a 5.5% growth over 14 years. The peak was 36,193 in 2023. Average annual growth rate: 0.39%.
36,134
Population (2024)
34,235
Population (2010)
36,193
Peak (2023)
0.39%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 34,235 |
| 2011 | 34,420 |
| 2012 | 34,496 |
| 2013 | 34,610 |
| 2014 | 34,801 |
| 2015 | 34,746 |
| 2016 | 34,768 |
| 2017 | 34,859 |
| 2018 | 34,768 |
| 2019 | 34,901 |
| 2020 | 35,210 |
| 2021 | 35,510 |
| 2022 | 35,876 |
| 2023 | 36,193 |
| 2024 | 36,134 |
Race & Ethnicity
| White | 90.9% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 4.7% |
| Two or More Races | 0.0% |
Age & Sex
40.3
Median Age
48.3%
Female
51.7%
Male
19.2%
Age 65+
Age Distribution
Children (under 15): 17.3% · Seniors (65+): 19.2%
Income & Poverty
| Median household income | $57,504$-12,418 vs state |
| Mean household income | $77,994 |
| Per-capita income | $34,925 |
| Poverty rate | 9.0%+1.9% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 55.5% |
Top Industries by Employment
The largest employment sector in Silver Bow County is professional & business services, accounting for 23.5% of workers.
How residents commute
0.9%
Drive alone
2.7%
Carpool
77.4%
Public transit
7.1%
Work from home
16.2 min
Avg commute
Housing
$223,500$-114,600 vs state
Median home value
$810
Median rent
70.5%
Homeownership rate
17,396
Total housing units
88.2%
Occupied
11.8%
Vacant
29.5%
Renter-occupied
Social & access
93.4%
With health insurance
92.4%
With broadband internet
28.6%
Foreign-born
9.7%
Veterans (18+)
19.4%
With a disability
97.3%
Speak language other than English at home
Education
94.0%
High School+
27.7%
Bachelor's+
Largest cities in Montana
Other counties in Montana
Part of Montana
Metro areas in Montana
County rankings
Frequently Asked Questions
Silver Bow County, Montana has a population of 35,589 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 8th-largest county in Montana. Population density is 50 people per square mile.
The population of Silver Bow County has grown 5.5% since 2010 (34,235 → 36,134), a +0.39% annualized rate.
The median household income in Silver Bow County, Montana is $57,504, with mean (average) household income of $77,994 and per-capita income of $34,925. 9.0% of residents live below the federal poverty level.
In Silver Bow County, the largest racial and ethnic groups are White (90.9%), Hispanic or Latino (4.7%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Silver Bow County, Montana is 40.3 years. Residents are 48.3% female and 51.7% male.
The median home value in Silver Bow County is $223,500 and median monthly rent is $810. 70.5% of occupied housing units are owner-occupied. The county has 17,396 total housing units, 11.8% of which are vacant.
The largest employment sector in Silver Bow County, Montana is professional, scientific, and management services, employing 23.5% of workers. The unemployment rate is 2.5%.
Billings is among the largest cities associated with Silver Bow County, Montana, with a population of 118,321.
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Statewide data for Montana
Population, race, income, age, and trends across Montana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.