Sweet Grass County, Montana
Sweet Grass County: County in Montana, United States
About
Sweet Grass County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 3,651 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 3,684 inhabitants. Its county seat is Big Timber. The county was created 130 years ago in 1894.

Quick Facts about Sweet Grass County
Population : | 3,684 (2020) |
Country : | United States of America |
State : | Montana (United States) |
Area : | 4823 km2 |
Water as percent of area : | 0.4% |
Land as percent of area : | 99.6% |
Named for : | Hierochloe odorata |
Altitude : | 4,137 feet / 1261 meters |
Capital : | Big Timber |
Establishment : | January 01, 1895 |
Time Zone : | America/Denver |
Local time : | 10:19:55 (22nd February 2025) |
Density : | 1 Pop. per km² as of 2020 |
Population growth : | 0.9% (2010-2020) |


Geography
Sweet Grass County is located at 45°48'49"N 109°56'28"W (45.8137300, -109.9410500). It has 2 neighbors: Meagher County and Wheatland County.
Sweet Grass County map
The largest city of Sweet Grass County is Big Timber with a population of 1,688. . See all Sweet Grass County cities & populated places.
Sweet Grass County Populated Places
Cities, towns, neighborhoods & other populated places in Sweet Grass County.
City Name | Population | Title |
---|---|---|
Big Timber | 1,688 | City in and county seat of Sweet Grass County, Montana, United States |
- Official Website
Official website of Sweet Grass County
Sweet Grass County has 2 neighbours.
- Meagher County county in Montana, United States
- Wheatland County county in Montana, United States
- Big Timber
Demographics
The population of Sweet Grass County increased by 0.9% in 10 years.
Year | Population | % Change | Method |
2010 | 3,651 | - | census |
2011 | 3,585 | -1.84% | estimation process |
2012 | 3,581 | -0.11% | estimation process |
2013 | 3,658 | 2.1% | estimation process |
2014 | 3,639 | -0.52% | estimation process |
2015 | 3,620 | -0.52% | estimation process |
2016 | 3,616 | -0.11% | estimation process |
2017 | 3,676 | 1.63% | estimation process |
2018 | 3,703 | 0.73% | estimation process |
2019 | 3,737 | 0.91% | estimation process |
2020 | 3,684 | -1.44% | estimation process |
Montana Other Counties (more counties)
County Name | Population | Title |
---|---|---|
Yellowstone County | 162,990 | County in Montana, United States of America |
Missoula County | 121,630 | County in Montana, United States |
Billings | 117,445 | The most populous city in Montana. |
Gallatin County | 116,806 | County in Montana, United States |
Flathead County | 105,851 | County in Montana, United States |
Cascade County | 81,346 | County in central Montana, United States |
Missoula | 76,848 | The most populous city in Missoula County, Montana. |
Lewis and Clark County | 70,229 | County in Montana, United States |
Great Falls | 58,353 | Town in Cascade County, Montana, United States |
Bozeman | 50,970 | Town in Gallatin County, Montana, United States |
Ravalli County | 45,002 | County in Montana, United States |
Silver Bow County | 35,180 | County in Montana, United States |
Butte | 34,190 | Consolidated city-county in Montana, United States |
Helena | 33,737 | State capital of Montana, United States and seat of Lewis and Clark County |
Lake County | 30,986 | County in Montana, United States |
Kalispell | 25,329 | City in Flathead County, Montana, United States |