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COUNTY

Stillwater County

Montana · 9,445 residents (2025 est.) · 1,796.746 sq mi
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The short version

Stillwater County has roughly average household income, with a median household income of $84,732. Population has held roughly steady since 2000. Median home value has more than tripled since 2000, reaching $405,800. With a median age of 46.7, the population is older than the US median of 38.9. It ranks in the top 5% of US counties for household income.

At a glance
Average income
near the US median
US median: $82,259
Older
median age 46.7
US median: 38.9
Average education
32% hold a bachelor's degree
US average: 36%
Less affordable
home values up 116%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
9,182
+12%since 2000
from 8,195 in 2000
1990 – 2025
Population density
5 / sq mi
+7%since 2009
from 5 / sq mi in 2009
US average: 281
Median age
46.7
+14%since 2000
from 40.8 in 2000
US average: 38.9

PEP 2025 EST:9,445 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
6K7K8K9K10K1990201020202024Stillwater County
20249K
1990201020202024
Age distribution, 2024
Under 54.2%(386)
US avg: 5.6%
5 to 95.5%(504)
US avg: 6%
10 to 146.4%(590)
US avg: 6.4%
15 to 196.9%(632)
US avg: 6.6%
20 to 244.3%(395)
US avg: 6.5%
25 to 349.3%(853)
US avg: 13.7%
35 to 4411%(1,006)
US avg: 13.2%
45 to 5412.2%(1,121)
US avg: 12.2%
55 to 6415%(1,381)
US avg: 12.7%
65 to 7416%(1,470)
US avg: 10.2%
75 to 847%(641)
US avg: 5.1%
85 and over2.2%(203)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$84,732
+19%inflation adjusted, since 2000
from $39,205 in 2000
US average: $82,259
1990 – 2024
Per capita income
$50,603
+174%since 2000
from $18,468 in 2000
US average: $44,673
Households earning $100K+
56.9%
+23.8 ptssince 2009
from 33.1% in 2009
US average: 53.3%
Poverty rate
8.3%
−1.5 ptssince 2000
from 9.8% in 2000
US average: 12.5%
Income inequality (Gini)
0.475
+22%since 2010
from 0.388 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing21.6%
US avg: 1.6%
Manufacturing12.3%
US avg: 0.4%
Construction9.2%
US avg: 1.2%
Information8.5%
US avg: 10.8%
Retail trade7.7%
US avg: 9.9%
Wholesale trade7.6%
US avg: 6.9%
Other services5.8%
US avg: 6.7%
Finance & insurance5.1%
US avg: 5.9%
Professional, scientific, technical4.4%
US avg: 5.1%
Public administration3.8%
US avg: 4.8%
Transportation & warehousing1.1%
US avg: 2.2%
Arts, entertainment, food0.7%
US avg: 1.9%
Education & health services0.6%
US avg: 0.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$405,800
+116%inflation adjusted, since 2000
from $103,200 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$961
+20%inflation adjusted, since 2000
from $439 in 2000
US average: $1,442
Owner-occupied
82.9%
+6.9 ptssince 2000
from 76.0% in 2000
17.1% rent
Vacancy rate
18.2%
−1.0 ptssince 2009
from 19.2% in 2009
US average: 10.0%
Owner cost-burdened
21.7%
+1.0 ptssince 2009
from 20.6% in 2009
US average: 22.9%
Renter cost-burdened
22.9%
+4.6 ptssince 2009
from 18.3% in 2009
US average: 47.4%
Afford Score
4.8
+64%since 2009
from 2.9 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
73
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Stillwater County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic95.9%(7,860)
Black0.1%(10)
Hispanic / Latino2%(165)
Asian0.2%(16)
Other0%
2024
White, non-Hispanic92%(8,446)
Black0%(4)
Hispanic / Latino3.5%(319)
Asian0.4%(34)
Other4.1%(379)
Diversity Score
19
+44%since 2009
from 13 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
6
−28%since 2020
from 9 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican1.9%(170)
Puerto Rican0.4%(35)
Cuban0%(1)
Asian origin
Chinese0.2%(19)
Filipino0.1%(8)
Korean0.1%(7)
Ancestry
German26.5%(2,434)
Irish14%(1,285)
English13%(1,190)
Norwegian9.1%(835)
American5%(458)
French2.9%(267)
Dutch2.8%(255)
Italian2.5%(232)
Scottish2.2%(202)
Swedish2%(184)
Scotch-Irish1.4%(133)
Croatian1.4%(131)
+ 20 more ancestry groups with data
Polish1.3%(117)
Finnish1%(96)
Welsh0.9%(79)
Russian0.8%(70)
Czech0.6%(53)
Lithuanian0.4%(41)
Swiss0.4%(38)
Hungarian0.3%(32)
British0.3%(29)
Austrian0.3%(25)
Danish0.3%(24)
Belgian0.1%(13)
Portuguese0.1%(13)
Serbian0.1%(12)
Canadian0.1%(11)
Slovene0.1%(11)
RANKED:Largest German population · Largest Irish population · Largest English population · Largest Norwegian population · Largest American population
Section 05

Education

Bachelor's degree or higher
32.3%
+14.4 ptssince 2000
from 17.8% in 2000
US average: 35.6%
High school or higher
95.6%
+8.1 ptssince 2000
from 87.5% in 2000
US average: 89.6%
Graduate degree
8.8%
+4.0 ptssince 2000
from 4.7% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
30.5 min
+44%since 2000
from 21.2 min in 2000
US average: 26.5
Drive alone to work
60.4%
−1.8 ptssince 2009
from 62.2% in 2009
US average: 68.9%
Carpooled to work
22.4%
+7.9 ptssince 2009
from 14.5% in 2009
US average: 8.5%
Public transit
2.5%
−3.6 ptssince 2009
from 6.1% in 2009
US average: 3.2%
Worked from home
9.8%
−0.2 ptssince 2009
from 10.1% in 2009
US average: 15.0%
Walked to work
3.7%
−1.9 ptssince 2009
from 5.6% in 2009
US average: 2.4%
Biked to work
0.2%
+0.2 ptssince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
3.2%
+1.9 ptssince 2009
from 1.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.1%
−1.0 ptssince 2011
from 4.1% in 2011
US average: 5.2%
Labor force participation
61.9%
−2.7 ptssince 2011
from 64.6% in 2011
US average: 63.5%
Self-employed
12.3%
+0.5 ptssince 2009
from 11.8% in 2009
US average: 13.1%
Management & professional
31.3%
−26.0 ptssince 2009
from 57.3% in 2009
US average: 42.5%
Section 08

People & community

Male
50.5%
−1.3 ptssince 2009
from 51.8% in 2009
Female
49.5%
+1.3 ptssince 2009
from 48.2% in 2009
Foreign born
1.3%
Unchangedsince 2009
from 1.3% in 2009
US average: 14.1%
Veterans
11.3%
−40.4 ptssince 2009
from 51.7% in 2009
US average: 6.2%
With a disability
18.3%
+6.3 ptssince 2012
from 12.0% in 2012
US average: 13.3%
Uninsured
5.2%
−84.2 ptssince 2013
from 89.4% in 2013
US average: 8.4%
Broadband at home
86.8%
+9.8 ptssince 2017
from 77.0% in 2017
US average: 91.0%
English only at home
98.5%
+1.9 ptssince 2016
from 96.6% in 2016
US average: 77.7%
Spanish at home
0.1%
−2.4 ptssince 2016
from 2.5% in 2016
US average: 13.6%
Marital status
Men 15+
Never married22.1%(864)
Married62.7%(2,448)
Widowed3.9%(154)
Divorced11.2%(438)
Women 15+
Never married21.4%(812)
Married59.5%(2,260)
Widowed10.3%(392)
Divorced8.8%(334)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Head to head

Compare Stillwater County to nearby counties

STILLWATER COUNTY VS
Sweet Grass County
Income$77,000−9%
Home value$330,100−19%
Population3,762−60%
SEE FULL COMPARISON →
STILLWATER COUNTY VS
Carbon County
Income$80,261−5%
Home value$420,800+4%
Population11,466+21%
SEE FULL COMPARISON →
STILLWATER COUNTY VS
Golden Valley County
Income$58,333−31%
Home value$212,200−48%
Population844−91%
SEE FULL COMPARISON →
STILLWATER COUNTY VS
Yellowstone County
Income$76,570−10%
Home value$349,500−14%
Population172,692+1728%
SEE FULL COMPARISON →
Frequently asked

How many people live in Stillwater County, Montana?

Stillwater County, Montana has about 9,182 residents according to the 2024 American Community Survey.

What is the median household income in Stillwater County, Montana?

The typical household in Stillwater County, Montana earns about $84,732 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 $405,800, and the typical rent is about $961 a month.

How educated are people in Stillwater County, Montana?

About 32.3% 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 8.3% 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 2,646 residents, a change of about 40 percent over that period.

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Explore from here

3 census tracts
Census Tract 9664Census Tract 9666Census Tract 9665
8 ZIP codes
ZIP 59019ZIP 59063ZIP 59001ZIP 59057ZIP 59028ZIP 59069ZIP 59061ZIP 59067
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →