United States › Montana › Stillwater County COUNTY · 2020 ACS
Stillwater County Montana · 8,963 residents · 1,797 sq mi
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The short version
With 8,963 people, Stillwater County is a county in Montana. At a median age of 48.6, this is an older place than the country as a whole. 81% of homes are owner-occupied. The foreign-born share is 1%. The poverty rate is 5.6%, under the national 12.8%. 26% of adults hold a bachelor's degree or higher.
At a glance
Average income
near the US median
US median: $66,278
Older
median age 48.6
US median: 38.8
Less educated
26% hold a bachelor's degree
US average: 33%
Less affordable
home values up 65%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 40.8 in 2000
US average: 38.8
Population, 1990 – 2024
6K 7K 8K 9K 10K 1990 2000 2010 2020 2024 Stillwater County Age distribution, 2020
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Section 02
Income & economy $67,448
+14%inflation adjusted, since 2000
from $39,205 in 2000
US average: $66,278
from $18,468 in 2000
US average: $35,364
Households earning $100K+
from 33.1% in 2009
US average: 43.9%
from 9.8% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing 21.1%
Professional, scientific, technical 4.9%
Public administration 3.4%
Education & health services 1.6%
Transportation & warehousing 1%
Arts, entertainment, food 0.6%
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$256,600
+65%inflation adjusted, since 2000
from $103,200 in 2000
US average: $265,253
$800
+21%inflation adjusted, since 2000
from $439 in 2000
US average: $1,124
from 76.0% in 2000
19.0% rent
from 2.61 people in 2009
US average: 2.61
from 2.9 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 95.9%(7,860)
2020
White, non-Hispanic 90.5%(8,110)
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 21 more ancestry groups with data from 17.8% in 2000
US average: 32.9%
High school or higher
from 87.5% in 2000
US average: 88.5%
from 4.7% in 2000
US average: 12.7%
Section 06
Commute & transportation from 21.2 min in 2000
US average: 26.9
from 62.2% in 2009
US average: 75.1%
from 1.4% in 2009
US average: 8.4%
Section 07
Work & employment from 4.1% in 2011
US average: 5.4%
from 64.6% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 28.6% in 2009
US average: 39.3%
Section 08
People & community from 1.3% in 2009
US average: 13.5%
from 10.6% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 10.6% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 14.3%(121)
Gulf War (1990s) 12.5%(106)
Share of the 848 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Stillwater County Head to head
Compare Stillwater County to nearby counties STILLWATER COUNTY VS
Sweet Grass County
Income $77,000 +14%
Home value $330,100 +29%
Population 3,762 −60%
SEE FULL COMPARISON →
STILLWATER COUNTY VS
Carbon County
Income $80,261 +19%
Home value $420,800 +64%
Population 11,466 +21%
SEE FULL COMPARISON →
STILLWATER COUNTY VS
Golden Valley County
Income $58,333 −14%
Home value $212,200 −17%
Population 844 −91%
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STILLWATER COUNTY VS
Yellowstone County
Income $76,570 +14%
Home value $349,500 +36%
Population 172,692 +1728%
SEE FULL COMPARISON →
Frequently asked
How many people live in Stillwater County, Montana? Stillwater County, Montana has about 8,963 residents according to the 2020 American Community Survey.
What is the median household income in Stillwater County, Montana? The typical household in Stillwater County, Montana earns about $67,448 a year. Half of households make more than that, and half make less.
Is Stillwater County, Montana expensive? In Stillwater County, Montana, the median home is worth about $256,600, and the typical rent is about $800 a month.
How educated are people in Stillwater County, Montana? About 26.3% of adults age 25 and over in Stillwater County, Montana hold a bachelor's degree or higher.
What is the poverty rate in Stillwater County, Montana? About 5.6% of people in Stillwater County, Montana live below the federal poverty line.
Has Stillwater County, Montana grown since 1990? Yes, Stillwater County, Montana has grown since 1990. The population has added about 2,427 residents, a change of about 37 percent over that period.
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