Stillwater, MN

City in Washington County, MN, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

19,355

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

42.5

years ∙ half population younger than 42.5, half older

Diversity Index

24.2%

chance two random people differ in race and ethnicity

Nativity

4.9%

foreign-born population

95.1%Native

4.9% Foreign-born

Geographic Context

Location, size, and surroundings

About

Stillwater is a city within Washington County, Minnesota, United States.

Location

City in Washington County, MN, US

Co-ordinates

DEC45.058606° N, 92.830408° W

DMS45° 03′ 30.98″ N, 92° 49′ 49.47″ W

Population Density & area

2,404/sq mi (928.3/km²)

Total Area

9.08 sq mi (23.51 km²)

Land Area

8.05 sq mi (20.85 km²) · 88.7%

Water Area

1.03 sq mi (2.66 km²) · 11.3%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

50.7% male

Male 50.7%

Female 49.3%

males per 100 females

Stillwater 102.9

Washington County 99

Minnesota 100.4

Nativity

4.9%

foreign-born population

95.1%Native

4.9% Foreign-born

% Foreign-born

Stillwater 4.9%

Washington County 8.5%

Minnesota 8.7%

Age Distribution

How the population is spread across age groups

Median Age

42.5

years ∙ half population younger than 42.5, half older

Stillwater

42.5

Washington County

39.8

Minnesota

38.8

Dependency ratio

69.3

dependents per 100 working-age adults

Stillwater 69.3

Washington County 68.4

Minnesota 67.1

AGE DISTRIBUTION

Distribution of age group

Median age

	Stillwater	Washington County	Minnesota
Age Group
Children (Under 18)	21.1%	24%	22.9%
Working age (18-64)	59.1%	59.4%	59.8%
Senior (65+)	19.8%	16.6%	17.3%
Dependency ratio
Total dependency ratio	69.3	68.4	67.1
Child dependency ratio	35.7	40.3	38.2
Old-age dependency ratio	33.6	28	28.9

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

86.7%

Black

1.1%

Asian

2.3%

Hispanic

6.8%

Other

3.1%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

24.2%

chance two random people differ in race and ethnicity

Stillwater 24.2%

Washington County 39.1%

Minnesota 41%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Stillwater population

Racial and ethnic composition — Stillwater vs Washington County vs Minnesota. Source: ACS 2020-2024 5-Year Estimates.
	Stillwater	Washington County	Minnesota
Hispanic or Latino	6.8%	5.3%	6.4%
Mexican	3.3%	3.5%	3.9%
Puerto Rican	0.1%	0.3%	0.3%
Cuban	0.2%	0.1%	0.1%
Other Hispanic / Latino	3.2%	1.4%	2%
Not Hispanic or Latino	93.2%	94.7%	93.6%
One race	90.9%	91%	89.1%
White	86.7%	77.2%	75.9%
Black or African American	1.1%	5.5%	6.9%
American Indian and Alaska Native	0.2%	0.2%	0.7%
Asian	2.3%	7.7%	5.1%
Native Hawaiian and Other Pacific Islander	0.1%	0%	0%
Some Other Race	0.5%	0.5%	0.5%
Two or more races (Multiracial)	2.3%	3.7%	4.5%

Household & Families Composition

Household size, type, and family structure

Household structure

63.1% family

Family 63.1%

Non family 36.9%

% family households

Stillwater 63.1%

Washington County 70.6%

Minnesota 62.3%

Average household size

2.35

persons per household

Stillwater

2.35

Washington County

2.58

Minnesota

2.43

Household & Family COMPOSITION

Households

Percentage of Stillwater population

	Stillwater	Washington County	Minnesota
Total households	8,078	105,577	2,307,955
Average houshold size	2.35	2.58	2.43
Family households	5,098	74,491	1,438,404
Average family size	2.89	3.08	3.04
Married couple family	3,893	59,864	1,129,003
Other families	1,205	14,627	309,401
Male householder	353	4,451	102,922
Female householder	852	10,176	206,479
Non-family households	2,980	31,086	869,551
One-person households	2,295	24,248	686,475
Male householder	950	10,208	320,418
Senior (65+) living alone	426	3,597	97,557
Female householder	1,345	14,040	366,057
Senior (65+) living alone	794	8,237	186,557
Other living arrangements	685	6,838	183,076

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

8,545

housing units

Stillwater 8,545

Washington County 109,307

Minnesota 2,545,030

Occupancy status

94.5% occupied

Occupied 94.5%

Vacant 5.5%

vacancy rate

Stillwater 5.5%

Washington County 3.4%

Minnesota 9.3%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

80.5%

Single family houses

80.5%

Apartments in multi-unit structures

18.9%

Mobile homes

0.6%

Boat, RV, van, etc

Median Year Built

1981

Half of houses were built before 1981, and half after.

Historic ∙ 1939 or earlier

24.8%

Postwar & mid-century ∙ 1940 - 1969

12%

Late 20th century ∙ 1970 - 1999

39.9%

Modern ∙ 2000 or later

23.5%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Stillwater	Washington County	Minnesota
Rooms per unit
Median rooms	6.7	6.9	6.1
1–3 rooms	9.3%	9.1%	14.9%
4–6 rooms	37.7%	35.8%	41.4%
7+ rooms	52.9%	55%	43.7%
Bedrooms
No bedroom / studio	0.7%	1.2%	2.7%
1 bedroom	8.8%	6.7%	11.4%
2 bedrooms	24.7%	21.6%	24.5%
3 bedrooms	35.6%	32.2%	32.2%
4+ bedrooms	30.1%	38.3%	29.1%
At a glance
Median year built	1981	1992	1979
Total housing units	8,545	109,307	2,545,030

Occupancy Profile

Who is inside and how they use it

Homeownership

76.7% owners

Renter-occupied 23.3%

Owner-occupied 76.7%

homeownership rate

Stillwater 76.7%

Washington County 81.3%

Minnesota 72.2%

Average household size

2.4

Owner-occupied

2.2

Renter-occupied

owner-occupied average size

Stillwater 2.4

Washington County 2.72

Minnesota 2.59

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Stillwater	Washington County	Minnesota
Total occupied units	8,078	105,577	2,307,955
Year moved in
2020 or later	20.2%	22.2%	23.8%
2010 to 2019	39.3%	39.4%	38.9%
2000 to 2009	20.5%	16.6%	16.1%
1999 or earlier	19.9%	21.9%	21.2%
Occupants per room
1.00 or fewer	99.4%	98.5%	97.7%
1.01 to 1.50	0.4%	1%	1.5%
1.51 or more	0.2%	0.5%	0.8%
Vehicles availability
No vehicles	3%	3.8%	6.7%
1 vehicle	33.2%	26.6%	30.8%
2 vehicles	45.6%	44.6%	39.5%
3 or more vehicles	18.1%	25%	23.1%
House heating fuel used
Gas	85.9%	81.9%	75.9%
Electricity	13.6%	16.3%	19.4%
Solar	0%	0.1%	0.1%
Fuel oil, kerosene etc	0%	0.4%	1.3%
All other fuels	0.4%	0.9%	2.5%
No fuel used	0%	0.4%	0.9%
Selected characteristics
Lacking complete plumbing	0%	0.1%	0.4%
Lacking complete kitchen	0%	0.3%	0.7%
No telephone service available	0.3%	0.4%	0.7%

Housing Value

What owner-occupied units are worth

Median home value

$414,200

owner-occupied units

Median value(USD)

Stillwater

$414,200

Washington County

$422,000

Minnesota

$329,300

Housing Cost Burden

21.9%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

21.9%

Owners without a mortgage

12.8%

Renters

49.1%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Stillwater	Washington County	Minnesota
Property value
Median Value	$414,200	$422,000	$329,300
Under $100,000	3%	3.6%	7.7%
$100,000 - $200,000	2.3%	3.4%	13.3%
$200,000 - $300,000	17.1%	16%	22.6%
$300,000 - $500,000	50.8%	43%	36.9%
$500,000 - $1,000,000	25.8%	30.6%	17%
$1,000,000 and more	1.1%	3.4%	2.6%
Owner-occupied households
With a mortgage	69%	69%	64%
Without a mortgage	31%	31%	36%
Median monthly owner costs
With a mortgage	$2,148	$2,275	$1,947
Without a mortgage	$784	$809	$698
Gross rent
Median rent	$1,622	$1,710	$1,280

Education Profile

How educated is the community and how education pays off

Adults with a college degree

51%

of adults 25+ with a bachelor's degree or higher

Stillwater 51%

Washington County 49.1%

Minnesota 39.4%

Adults without a high school diploma

3.9%

of adults (25+) without a high school diploma

Stillwater 3.9%

Washington County 3.9%

Minnesota 6.1%

School Enrollment

Who is enrolled in school and at what level

School enrollment

4,093

population (age 3+) enrolled in school

Nursery / Preschool

5.4%

K–12

74.3%

College / Undergraduate

14.2%

Graduate / Professional

6.1%

College-going rate (18-24 yr olds)

18.1%

of 18-24-year-olds in college or graduate school

Stillwater

18.1%

Washington County

36%

Minnesota

39.1%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Stillwater	Washington County	Minnesota
Total enrolled (age 3+)	4,093	68,158	1,385,086
Nursery / preschool	5.4%	6.1%	6.2%
K–12	74.3%	73.7%	69.9%
Kindergarten	13.3%	5.8%	5.2%
Elementary: Grades 1–4	14.6%	21.3%	20.6%
Elementary: Grades 5–8	23.7%	22.2%	21.7%
High School: Grades 9–12	22.7%	24.4%	22.4%
College or graduate school	20.4%	20.3%	23.9%
College, undergraduate	14.2%	15.4%	18.8%
Graduate, professional school	6.1%	4.9%	5.1%
College-going rate · 18-24 yr olds	18.1%	36%	39.1%
School type
Public school	77.3%	83.1%	83.3%
Private school	22.7%	16.9%	16.7%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

13,828

population 25 years and over

Total adults (25+)

Less than 9th grade

2.2%

9th-12th, no diploma

1.7%

HS graduate

15.5%

Some college no degree

20.5%

Associates degree

9.2%

Bachelors degree

31.8%

Graduate or professional degree

19.2%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

61.1% · 38.9%

9th-12th, no diploma

65.5% · 34.5%

HS graduate

46.7% · 53.3%

Some college no degree

56.9% · 43.1%

Associates degree

49.9% · 50.1%

Bachelors degree

44.2% · 55.8%

Graduate or professional degree

50.7% · 49.3%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Stillwater	Washington County	Minnesota
Population (25+)	13,828	188,684	3,923,744
Less than 9th grade	2.2%	1.5%	2.7%
9th–12th, no diploma	1.7%	2.4%	3.4%
High school diploma or GED	15.5%	18.6%	23.3%
Some college, no degree	20.5%	17.4%	19.5%
Associate's degree	9.2%	11%	11.8%
Bachelor's degree or higher	51%	49.1%	39.4%
Bachelor's degree	31.8%	31.7%	25.6%
Graduate or professional	19.2%	17.4%	13.8%
High School or higher	96.2%	96.1%	93.9%

Earnings by education level

percentage as applicable

Median Earnings

$61,635

Median earnings for adults 25+, by level

Less than HS graduate

$—

HS graduate

$49,107

Some college or associates

$50,347

Bachelors degree

$73,386

Graduate or professional degree

$94,321

Poverty Rate

2.7%

for ages 25+, with bachelors degree or higher

Less than HS graduate

43.3%

HS graduate

10.1%

Some college or associates

6.1%

Bachelors degree or higher

2.7%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Stillwater	Washington County	Minnesota
Median earnings
Population 25+, with earnings	$61,635	$70,179	$58,615
Less than high school graduate	$—	$40,000	$36,257
High school graduate (includes equivalency)	$49,107	$48,241	$42,951
Some college or associate's degree	$50,347	$60,346	$51,845
Bachelor's degree	$73,386	$84,172	$73,301
Graduate or professional degree	$94,321	$101,532	$89,644
Poverty rates
Less than high school graduate	43.3%	17.7%	23.7%
High school graduate (includes equivalency)	10.1%	7.5%	12.3%
Some college or associate's degree	6.1%	5.4%	7.8%
Bachelor's degree or higher	2.7%	2.7%	3.2%

Insights for Stillwater, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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