Park County, Montana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Montana
The population of Park County, Montana is 17,484 as of the 2023 American Community Survey, making it the 11th-largest county in Montana. The median household income is $66,607, the median home value is $429,700, and the median age is 46.2.
The population of Park County has grown 15.9% since 2010 (15,595 → 18,074), a +1.06% annualized rate.
17,484
Population
+1.06%
Annual growth
6
People / sq mi
$66,607
Median Income
$429,700
Median Home Value
Park County covers 2,802 sq mi of land at 6.2 people per square mile.
About Park County, MT
Park County is distinguished by its share of foreign-born residents, 59.9% of the population. Park County is a county in Montana with a population of 17,484. It ranks #11 among counties in Montana by population.
Median household income is $66,607, below the US median of $78,538. The poverty rate is 7.8%, below the national 12.4%. Home prices are steep, with the typical property valued at $429,700, with typical rent around $927.
The population is unusually well-credentialed for US counties — 38.1% of adults have a four-year degree, above the national 35.0%. An unusually large 15.9% of workers are remote, above the national 14.0%, and the average commute runs about 25 minutes each way.
The large foreign-born share is a defining thread in Park County, shaping language, household composition, and the labor force behind the economic figures above.
Park County Population History (2010-2024)
The county of Park County had a population of 15,595 in 2010 and 18,074 in 2024, a 15.9% growth over 14 years. The peak was 18,074 in 2024. Average annual growth rate: 1.06%.
18,074
Population (2024)
15,595
Population (2010)
18,074
Peak (2024)
1.06%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,595 |
| 2011 | 15,512 |
| 2012 | 15,597 |
| 2013 | 15,705 |
| 2014 | 15,926 |
| 2015 | 16,013 |
| 2016 | 16,138 |
| 2017 | 16,392 |
| 2018 | 16,662 |
| 2019 | 16,612 |
| 2020 | 17,229 |
| 2021 | 17,525 |
| 2022 | 17,783 |
| 2023 | 17,938 |
| 2024 | 18,074 |
Race & Ethnicity
| White | 92.1% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.0% |
| Two or More Races | 0.0% |
Age & Sex
46.2
Median Age
49.6%
Female
50.4%
Male
24.2%
Age 65+
Age Distribution
Children (under 15): 14.0% · Seniors (65+): 24.2%
Income & Poverty
| Median household income | $66,607$-3,315 vs state |
| Mean household income | $95,941 |
| Per-capita income | $45,894 |
| Poverty rate | 7.8%+0.7% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 60.9% |
Top Industries by Employment
The largest employment sector in Park County is professional & business services, accounting for 16.7% of workers.
How residents commute
0.8%
Drive alone
3.0%
Carpool
67.4%
Public transit
15.9%
Work from home
24.6 min
Avg commute
Housing
$429,700+$91,600 vs state
Median home value
$927
Median rent
69.6%
Homeownership rate
9,597
Total housing units
86.0%
Occupied
14.0%
Vacant
30.4%
Renter-occupied
Social & access
91.5%
With health insurance
94.5%
With broadband internet
59.9%
Foreign-born
10.7%
Veterans (18+)
12.0%
With a disability
97.1%
Speak language other than English at home
Education
96.7%
High School+
38.1%
Bachelor's+
Largest cities in Montana
Other counties in Montana
Part of Montana
Metro areas in Montana
County rankings
Frequently Asked Questions
Park County, Montana has a population of 17,484 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Montana. Population density is 6 people per square mile.
The population of Park County has grown 15.9% since 2010 (15,595 → 18,074), a +1.06% annualized rate.
The median household income in Park County, Montana is $66,607, with mean (average) household income of $95,941 and per-capita income of $45,894. 7.8% of residents live below the federal poverty level.
In Park County, the largest racial and ethnic groups are White (92.1%), Hispanic or Latino (3.0%), Black or African American (0.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Park County, Montana is 46.2 years. Residents are 49.6% female and 50.4% male.
The median home value in Park County is $429,700 and median monthly rent is $927. 69.6% of occupied housing units are owner-occupied. The county has 9,597 total housing units, 14.0% of which are vacant.
The largest employment sector in Park County, Montana is professional, scientific, and management services, employing 16.7% of workers. The unemployment rate is 1.8%.
Billings is among the largest cities associated with Park 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.