Stillwater County, MT demographics:
population, income, and more

Total population
9,182
1.4% year-over-year change
Median household income
$84,732/yr
4.0% year-over-year change
Housing units
4,657
0.0% year-over-year change

Stillwater County population

How many people live in Stillwater County

Stillwater County is home to 9,182 residents, according to the most recent Census data. Gender-wise, 50.5% of Stillwater County locals are male, and 49.5% are female.

Total population
9,182
1.4% year-over-year change
Gender ratio
Male
50.5%
4,640
Female
49.5%
4,542
Value Percent YoY change
Male 4,640 50.5% 2.1%
Female 4,542 49.5% 0.7%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Stillwater County is 47, with the population distributed as follows: about 16.1% are children under 15, then 11.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.2% of the population, while another 27.2% fall into the 45 to 64 bracket. Finally, around 25.2% are 65 or older.

Median age
46.7
Age breakdown
Under 15
16.1%
15 to 24
11.2%
25 to 44
20.2%
45 to 64
27.2%
Over 65
25.2%
Value Percent YoY change
Under 15 1,480 16.1% 0.3%
15 to 24 1,027 11.2% 5.0%
25 to 44 1,859 20.2% 2.9%
45 to 64 2,502 27.2% -1.2%
Over 65 2,314 25.2% 2.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Stillwater County, 98.3% of the population are US-born citizens, while 1.5% have gained naturalized citizenship. At the same time, 0.2% of residents are non-citizens. There’s also a share of 5.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.3%
Non-U.S.-born citizens
1.5%
Non-citizens
0.2%
Value Percent YoY change
U.S.-born citizens 9,024 98.3% 1.2%
Non-U.S.-born citizens 138 1.5% 21.1%
Non-citizens 20 0.2% -9.1%
Racial breakdown
White
93%
Black or African American
0%
American Indian and Alaska Native
0.3%
Asian
0.4%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.5%
Other
0.7%
Value Percent
White 8,543 93%
Black or African American 4 0%
American Indian and Alaska Native 25 0.3%
Asian 34 0.4%
Two or more races 508 5.5%
Other 68 0.7%

Households in Stillwater County

A peek inside Stillwater County households

Stillwater County has 3,810 households, with an average of 2 members in each. Of these, 66.8% are families, while the remaining 33.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,810
-1.5% year-over-year change
Average people per household
2
Non-family households
1,263
Family households
2,547
Value Percent YoY change
Non-family households 1,263 33.2% -0.6%
Family households 2,547 66.8% -2.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Stillwater County

The housing landscape of Stillwater County

Stillwater County's housing consists of 4,657 units, with 83.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 10.4% of the housing landscape.

Housing units
4,657
0.0% year-over-year change
Housing types
Value Percent
1 unit, detached 3,893 83.6%
1 unit, attached 92 2%
2 units 24 0.5%
3 or 4 units 82 1.8%
5 to 9 units 56 1.2%
20 to 49 units 26 0.6%
Mobile home 483 10.4%
Boat, RV, van, etc. 1 0%
Homes built since 2020
51
-7.3% year-over-year change

The age of buildings in Stillwater County

In Stillwater County, the median construction year is 1986. About 15.5% of homes were built before the 1940s, with another 4.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 19.7% of homes were added from 2000 to 2009, 10.5% between 2010 and 2019, and 1.1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 722 15.5% 15.0%
Built between 1940 and 1949 227 4.9% -22.0%
Built between 1950 and 1959 227 4.9% -11.7%
Built between 1960 and 1969 250 5.4% -10.4%
Built between 1970 and 1979 556 11.9% -7.3%
Built between 1980 and 1989 551 11.8% 1.3%
Built between 1990 and 1999 665 14.3% 2.0%
Built between 2000 and 2009 918 19.7% 5.6%
Built between 2010 and 2019 490 10.5% 1.7%
Built in 2020 or later 51 1.1% -7.3%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Stillwater County occupancy rates

Out of the 3,810 occupied housing units in Stillwater County, 82.9% are owner-occupied, while 17.1% are lived in by tenants. Meanwhile, 18.2% of all homes on the local market sit vacant.

Occupied housing units
3,810
-1.5% year-over-year change
Occupancy breakdown
Renter occupied
651
Owner occupied
3,159
Value Percent YoY
change
Renter occupied 651 17.1% -12.5%
Owner occupied 3,159 82.9% 1.1%
Unoccupied housing units
18.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Stillwater County housing costs

Housing costs in Stillwater County come to a median of $1,119 per month, while tenants specifically pay a median gross rent of $961.

Median housing costs per month
$1,119/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Stillwater County
$961/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Stillwater County

Stillwater County education at a glance

About 36.9% of the population in Stillwater County went to high school, while 22.2% pursued college studies. Another 8.7% earned an associate degree and 21.8% hold a bachelor’s. Meanwhile, 8.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 164 2.3% -21.1%
High school diploma 2,676 36.9% -3.5%
College diploma 1,614 22.2% 2.2%
Associate degree 634 8.7% 4.8%
Bachelor's degree 1,584 21.8% 12.2%
Graduate degree 585 8.1% 3.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Stillwater County

How much people earn in Stillwater County

The average annual household income in Stillwater County was $116,762 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.7% change from the previous year. At the same time, the median income stood at $84,732, reflecting a +4% shift over the same period.

Average household income in Stillwater County
$116,762/year
4.7% year-over-year change
Median household income in Stillwater County
$84,732/year
4.0% year-over-year change

Stillwater County income by age

In Stillwater County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $91,509. Those with someone between 45 and 64 in charge, often well established professionally, earn $106,620 overall. Overall, 91.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $91,509 7.3%
45 - 64 $106,620 2.5%
Over 65 $54,044 -8.8%
Above poverty level
8,239
Below poverty level
751
Value Percent YoY
change
Above poverty level 8,239 91.6% 0.8%
Below poverty level 751 8.4% 1.5%

Employment in Stillwater County

Workforce and job types in Stillwater County

The job market in Stillwater County is powered by 4,479 working residents, spread across a range of industries and roles. 64.6% of the working population are employed in professional or administrative positions, while 35.4% are in hands-on or service-based jobs. Also, 14.5% run their own businesses, 62.8% are employed by private companies, and 14.4% work in the public sector.

Workforce demographics

Working population
4,479
1.3% year-over-year change
White collar
2,894
Blue collar
1,585
Value Percent YoY change
White collar 2,894 64.6% 5.5%
Blue collar 1,585 35.4% -5.6%
Employer type
Self employees
14.5%
Private companies
62.8%
Governmental workers
14.4%
Not for profit companies
8.3%
Value Percent YoY change
Self employees 650 14.5% 0.5%
Private companies 2,812 62.8% -0.3%
Governmental workers 647 14.4% 3.7%
Not for profit companies 370 8.3% 11.8%
Unemployment rate
3.1%
-6.5% year-over-year change

Available workforce

The unemployment rate in Stillwater County stands at 3.1%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Stillwater County

How people get around in Stillwater County

In Stillwater County, the average commute time is 30 minutes. Commuting methods vary: 82.8% of residents travel by personal vehicle and 3.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
30 min
7.0% year-over-year change
Means of transportation
Value Percent YoY change
Car 3,715 82.8% 1.6%
Bus or trolleybus 111 2.5% -24.0%
Bicycle 10 0.2% 25.0%
Walk 166 3.7% -6.7%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Stillwater County by zipcode?

Zipcode Population Number of households Median income Average income
59001 1,409 624 $82,692 $150,877
59015 394 126 $69,583 $89,406
59019 4,438 1,794 $84,591 $107,778
59028 496 247 $72,969 $100,065
59057 782 317 $80,571 $84,587
59061 250 151 $92,031 $112,609
59063 2,070 784 $99,432 $125,129
59067 152 50 $72,500 $109,390
59069 458 214 $72,500 $86,161

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FAQs about Stillwater County demographics 

What is the total population of Stillwater County?

Stillwater County has a total population of 9,182 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.4% compared to a year ago.

What is the gender ratio in Stillwater County?

The gender ratio in Stillwater County is as follows:
  • 50.5% males (4,640 residents)
  • 49.5% females (4,542 residents)

What is the median age in Stillwater County?

The median age in Stillwater County is 46.7.

What is the age distribution of the population in Stillwater County?

The age distribution in Stillwater County is as follows:
  • Under 15: 16.1% (1,480 residents)
  • Ages 15-24: 11.2% (1,027 residents)
  • Ages 25-44: 20.2% (1,859 residents)
  • Ages 45-64: 27.2% (2,502 residents)
  • Over 65: 25.2% (2,314 residents)

What is the racial and ethnic makeup of Stillwater County?

The racial and ethnic makeup of Stillwater County is as follows:
  • White: 93% (8,543 residents)
  • Black or African American: 0% (4 residents)
  • American Indian and Alaska Native: 0.3% (25 residents)
  • Asian: 0.4% (34 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 5.5% (508 residents)
  • Other: 0.7% (68 residents)

What percentage of the population in Stillwater County are U.S.-born citizens?

U.S.-born citizens represent 98.3% of the population in Stillwater County.

How many housing units are there in Stillwater County?

There are 4,657 housing units in Stillwater County, reflecting a 0.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Stillwater County and what is the average household size?

Stillwater County has a total of 3,810 households, with an average of 2 people in each.

What is the median household income in Stillwater County?

Stillwater County has a median household income of $84,732, representing a +4.0% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Stillwater County?

The employment rate is 96.9% in Stillwater County, with a workforce of 4,479 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 64.6% (2,894 residents)
  • Blue-collar workers: 35.4% (1,585 residents)

Places of employment:
  • Self-employed: 14.5% (650 residents)
  • Private companies: 62.8% (2,812 residents)
  • Governmental workers: 14.4% (647 residents)
  • Not-for-profit companies: 8.3% (370 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025