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Sweet Grass County, MT
2 cities and towns and 4 ZIP codes in Sweet Grass County, Montana.
Population
3,720
Land area
1,856sq mi
People per sq mi
2
ZIP codes
4
Cities and towns in Sweet Grass County
Sweet Grass County at a glance
- Sweet Grass County is 74% less dense than Montana as a whole.
- Households here earn a median of $77,000 a year, 6% more than the Montana figure of $72,509.
- A typical owner-occupied home is valued at $330,100 (12% below Montana) and median rent is $1,149 a month.
- The biggest population centers are Big Timber (1,611) and Greycliff (158).
Local data for Sweet Grass County, MT
Counts from official public data
Housing and community stats
Sweet Grass County, MT, American Community Survey 2020-2024
Median household income
$77,000
Poverty rate
7.9%
Median home value
$330,100
Prices +16.2% in a year
Median rent
$1,149/mo
Homeownership
79.7%
Bachelor's or higher
24.4%
Median age
47.0
Average commute
24.5 min
Largest reported origins and ancestries: German Americans (919), Norwegian Americans (516), Irish Americans (356).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.0%
Aug 2026, -1.1 pts in a year
Average annual pay
$64,449
1,478 jobs, 2025
Income per person
$66,533
BEA, 2024
Federal spending
$44.27M
FY 2026, $12,037 per person
PPP loans
$6.76M
226 loans, 851 jobs reported
Campaign donations
$35.46K
Itemized, 2026 cycle
How people get to work
Sweet Grass County, MT, workers 16 and older. American Community Survey 5-year estimates
- Drove alone66.9%
- Carpooled9.1%
- Public transit1.8%
- Walked4.4%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.8%
- Worked from home16.0%
Average one-way commute: 24.5 minutes for people who do not work from home.
Environment and hazard risk
Sweet Grass County, MT, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: wildfire
Storm events since 1996
891
Most often winter storm
Flood insurance policies
14
0.4% of homes, county
July high / Jan low
86° / 20°F
16.9 inches of rain a year
Hazards, floods and storm historyCheck a flood zone5 historic places
Health statistics
Share of adults in Sweet Grass County, MT, CDC PLACES estimates
Obesity
29.4%
U.S. 33.3% -3.9 pts
Diabetes
10.9%
U.S. 12.1% -1.2 pts
Smoking
13.0%
U.S. 12.8% about the same
Uninsured (18-64)
8.6%
U.S. 11.1% -2.5 pts
Cities, towns and ZIP codes in Sweet Grass County
Population shown
Frequently asked questions
- What is the largest city in Sweet Grass County, MT?
- Big Timber is the largest city or town in Sweet Grass County, with about 1,611 residents.
- How many ZIP codes are in Sweet Grass County?
- Sweet Grass County includes 4 ZIP Code Tabulation Areas, including 59011, 59033, 59052, 59055.
- What is the population of Sweet Grass County, MT?
- About 3,720 people live in Sweet Grass County, based on American Community Survey 5-year estimates.
- What counties border Sweet Grass County?
- Sweet Grass County borders Park County, Stillwater County, Wheatland County, Meagher County, Golden Valley County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023