Stillwater County, Montana Population 2024

9,177
5K6K7K8K9K10K19201930194019501960197019801990200020102020YearPopulation

Stillwater County, Montana's estimated 2024 population is 9,177 with a growth rate of 0.04% in the past year according to the most recent United States census data. Stillwater County, Montana is the 25th largest county in Montana. The 2010 population was 9,112 and has seen a growth of 0.71% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
20299,19740.04%
20289,19340.04%
20279,18940.04%
20269,18540.04%
20259,18140.04%
20249,17740.04%
20239,17340.04%
20229,1691451.61%
20219,024210.23%
20209,003-668-6.91%
20199,6711751.84%
20189,496880.94%
20179,408590.63%
20169,349-70-0.74%
20159,4191892.05%
20149,230-20-0.22%
20139,250890.97%
20129,16180.09%
20119,153410.45%
20109,11200%
19906,53693816.76%
19805,59896620.85%
19704,632-894-16.18%
19605,5261102.03%
19505,416-278-4.88%
19405,694-559-8.94%
19306,253-1,377-18.05%
19207,630-1,567-17.04%
2024 Growth Rate
0.04% (4)
County Website
Stillwater County
State
Montana
County Seat
Columbus
2020 Population
9,003
Area
1797 mi²
Density
5 people/mi²
Growth Since 2020
1.93% (174)
Founded
1913

Population by Race

Race
Population
Percentage (of total)
White8,44493.28%
Two or more races4334.78%
Other race1011.12%
Asian330.36%
Native American320.35%
Black or African American90.1%
Native Hawaiian or Pacific Islander00%
93.28%Race

White

Two or more races

Other race

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Stillwater County, Montana Population by Race

Stillwater County, Montana Population Pyramid 2024

01020304050607080500450400350300250200150100500050100150200250300350400450500MaleFemale

Stillwater County, Montana Median Age

47.4

Total

48.3

Male

47

Female

Stillwater County, Montana Adults

There are 7,144 adults, (2,259 of whom are seniors) in Stillwater County, Montana.

Stillwater County, Montana Age Dependency

85.3

Age Dependency Ratio

46.2

Old Age Dependency Ratio

39.1

Child Dependency Ratio

Stillwater County, Montana Sex Ratio

Female4,50949.81%
Male4,54350.19%

Stillwater County, Montana Population by Age

Stillwater County, Montana Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All3,8692.3180.819.2
Married2,2312.8688.711.3
Non Family1,2701.117129
Female2963.1459.140.9
Male722.9497.22.8

2.87

Average Family Size

2.31

Average Household Size

80.8%

Rate of Home Ownership

57.66%7.65%32.83%Households by Type

Married

Male

Female

NonFamily

MaleMarriedAllNon FamilyFemale00.10.20.30.40.50.60.70.80.91

owner

renter

Stillwater County, Montana Households and Families

Less Than 9th Grade9th to 12th GradeHigh School GraduateSome CollegeAssociates DegreeBachelors DegreeGraduate Degree02004006008001K1.2K

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade2754.17%
Associates Degree5808.79%
Bachelors Degree1,39621.16%
Graduate Degree5688.61%
High School Graduate2,19333.24%
Less Than 9th Grade1822.76%
Some College1,40421.28%
33.24%21.28%8.79%21.16%8.61%Over 25 Education

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Stillwater County, Montana Educational Attainment by Sex (over 25)

Stillwater County, Montana Educational Attainment by Race

BlackOther RaceNative AmericanWhiteHispanic2+ RacesAsian0%20%40%60%80%100%

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White6,1765,7851,886
2+ Races21616329
Hispanic16912923
Other Race949116
Native American32306
Asian211311
Black991

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 52.38%.

Stillwater County, Montana Educational Attainment by Race

OverallLess Than 9th GradeHigh School GraduateSome CollegeBachelors DegreeGraduate Degree$0$50,000$100,000$150,000$200,000

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$47,228$86,964$35,588
Graduate Degree$81,250$210,163$74,091
High School Graduate$39,356$56,648$24,792
Less Than 9th Grade$49,500$52,974$30,583
Overall$50,430$63,654$32,260
Some College$56,298$77,500$37,530

$50,430

Average Earnings

$63,654

Average Male

$32,260

Average Female

Stillwater County, Montana Earnings by Educational Attainment

Stillwater County, Montana Language by Age

98.78%Languages

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Stillwater County, Montana Language

98.78% of Stillwater County, Montana residents speak only English, while 1.22% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 0.67% of the population.

Stillwater County, Montana Language

Stillwater County, Montana Poverty by Race

BlackNativeMultipleHispanicOtherWhite0%10%20%30%40%50%60%70%80%90%

rate

Name
Total
In Poverty
Poverty Rate
White8,2825556.7%
Multiple42912027.97%
Hispanic3057123.28%
Other1011918.81%
Black9888.89%
Native20630%

8.25%

Overall Poverty Rate

7.43%

Male Poverty Rate

9.09%

Female Poverty Rate

Poverty in Stillwater County, Montana

The race most likely to be in poverty in Stillwater County, Montana is Black, with 88.89% below the poverty level.

The race least likely to be in poverty in Stillwater County, Montana is White, with 6.7% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.46%. Among those working part-time, it was 12.9%, and for those that did not work, the poverty rate was 12.67%.

Stillwater County, Montana Poverty

Less Than 9th GradeHigh SchoolSome CollegeBachelors or Greater0%2%4%6%8%10%12%14%16%18%

rate

Rate
Poverty
Less Than 9th Grade16.93%
High School10.03%
Some College6.8%
Bachelors or Greater4.89%

Stillwater County, Montana Poverty Rate by Education

Male EmployedMale UnemployedFemale EmployedFemale Unemployed0%0.5%1%1.5%2%2.5%3%3.5%4%4.5%5%5.5%6%6.5%

rate

Rate
Poverty
Female Employed6.24%
Male Unemployed5.63%
Male Employed4.53%
Female Unemployed2.44%

Stillwater County, Montana Poverty Rate by Employment Status and Sex

Stillwater County, Montana Income by Household Type

Under10k10kTo15k15kTo25k25kTo35k35kTo50k50kTo75k75kTo100k100kTo150k150kTo200kOver200k05101520

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$101,688$130,282
Households$81,503$111,489
Married Families$107,557$-999,999,999
Non Families$43,409$72,182
HouseholdsFamiliesMarried FamiliesNon Families020,00040,00060,00080,000100,000120,000140,000

mean

median

Income by Household Type

Stillwater County, Montana Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

61.4%

Overall Marriage Rate

64.2%

Male Marriage Rate

58.5%

Female Marriage Rate

Stillwater County, Montana Married by Age and Sex

35-4455-6445-54Over 6520-34020406080

male

female

Stillwater County, Montana Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Stillwater County, Montana Marital Status by Race

BlackAsianOtherRaceWhiteNonHispanicWhiteHispanicTwoOrMoreRacesIndian0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Stillwater County, Montana Marital Status

17.7%22.85%51.65%7.79%Veterans by War

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

825

Number of Veterans

753

Male Veterans

72

Female Veterans

War
Veterans
Vietnam391
First Gulf War173
Second Gulf War134
Korea59
World War II0

Stillwater County, Montana Veterans by War

18 to 3435 to 5455 to 6465 to 7475+050100150200250300350

count

Age Group
Veterans
65 to 74311
35 to 54194
75+188
55 to 64102
18 to 3430

Stillwater County, Montana Veterans by Age

WhiteOther RaceHispanic2+ RacesBlackNative American0100200300400500600700800

count

Name
Veterans
% of Total
White75811.26%
Other Race3838.38%
Hispanic3215.69%
2+ Races114.85%
Black9100%
Native American928.13%

Stillwater County, Montana Veterans by Race

Stillwater County, Montana Veterans by Education

30.06%34.42%31.03%Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.18%

Veteran Poverty Rate

46.91%

Veteran Disability Rate

Stillwater County, Montana Veterans by Education

16 - 1920 - 2425 - 2930 - 3435 - 4445 - 5455 - 5960 - 6465 - 7475+0102030405060708090100

LaborForceParticipation

61.9%

Labor Force Participation

59.6%

Employment Rate

3.3%

Unemployment Rate

Stillwater County, Montana Employment by Age

Other RaceAsianWhite Non-HispanicWhite2+ RacesHispanicNative AmericanBlack0102030405060708090

LaborForceParticipation

Stillwater County, Montana Employment by Race

Less Than High SchoolHigh School GraduateSome CollegeBachelors or Greater0102030405060708090

LaborForceParticipation

Stillwater County, Montana Employment by Education

Origin of Non-Citizens

54.55%18.18%27.27%Origin

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

80%20%Origin

Europe

Asia

Africa

Oceania

Latin America

North America

51.76%

Born in Stillwater County, Montana

98.87%

Native Born

1.13%

Foreign Born

0.24%

Non Citizen

0.88%

Naturalized

Place of Birth

98.87% of Stillwater County, Montana residents were born in the United States, with 51.76% having been born in Montana. 0.24% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Stillwater County, Montana Place of Birth

Sources