St. Clair, Minnesota Demographics & Population 2026

Name: St. Clair, Minnesota Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

During the 2020–2024 ACS period, St. Clair, Minnesota had a total population of 710, the 424th largest city in Minnesota, with a median household income of $106,136, which is 19% higher than the state average. The poverty rate is 4.9%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Key Takeaways

An exceptionally low poverty rate of 4.9% — among the lowest in Minnesota.
Housing is very affordable with a home-value-to-income ratio of just 2.1x.
Near full employment with an unemployment rate of just 2.3%.

St. Clair Quick Facts

Population 710

Median Household Income $106,136

Median Home Value $218,000

Poverty Rate 4.9%

Unemployment Rate 2.3%

Median Age 43.4 years

Homeownership Rate 94.5%

Affordability Ratio 2.1x

Bachelor's Degree or Higher 31.2%

High School Graduation Rate 99.2%

Diversity Index 25/100

Population 710 424th of 914

Median Income $106,136 top 20%

Poverty Rate 4.9% 60% lower than national

Median Home Value $218,000 above average

How St. Clair Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	785	710	-9.6%
Median household income	$101,375	$106,136	+4.7%
Median home value	$200,800	$218,000	+8.6%

How St. Clair Compares

Median Household Income

St. Clair

$106,136

$89,062

National

$80,734

Median Home Value

St. Clair

$218,000

$329,300

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 9.1%

$25K-$50K 15.3%

$50K-$100K 16.1%

$100K+ 59.5%

Detailed income brackets

Under $10K

6.3%

$10K-$15K

0.8%

$15K-$20K

1.2%

$20K-$25K

0.8%

$25K-$30K

4.7%

$30K-$35K

1.6%

$35K-$40K

3.9%

$40K-$45K

2.4%

$45K-$50K

2.8%

$50K-$60K

3.1%

$60K-$75K

5.9%

$75K-$100K

7.1%

$100K-$125K

20.9%

$125K-$150K

11.8%

$150K-$200K

22.4%

$200K+

4.3%

Employment

2.3% Unemployment Rate State: 4.1%|National: 5.2%

76.9% Labor Force Participation

Housing Overview

Owner 94.5%

Renter 5.5%

Affordability Index Very Affordable

2.1x home value to income ratio

Median gross rent $750/mo 8.5% of median household income annually

People & Demographics

Age Distribution

Under 18

24.8%

18-34

18.4%

35-54

28.6%

55-74

25.1%

75+

3.1%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 41 | National average: 61

Education

Educational Attainment (Adults 25+)

St. Clair Rankings in Minnesota

#424 Population of 914

#116 Median Income of 887

#215 Education of 914

#322 Home Value of 870

Explore Minnesota Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Other Cities in Blue Earth County

City	Population	Median Income	Poverty	Home Value
Mankato	45,473	$66,873	20.6%	$261,700
North Mankato	14,211	$80,791	4.5%	$262,100
Eagle Lake	3,281	$96,964	6.2%	$276,500
Lake Crystal	2,606	$83,317	7.8%	$204,400
Mapleton	1,728	$80,909	13.4%	$181,900
Madison Lake	1,322	$87,727	6.8%	$303,100
Minnesota Lake	687	$68,750	7.0%	$158,100
Amboy	602	$69,844	13.8%	$134,400
Good Thunder	456	$81,667	7.9%	$178,700
Vernon Center	329	$70,000	4.3%	$143,300

Cities Similar to St. Clair

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
St. Stephen	694	$105,313	$262,100	20.5%	2.0%
Prinsburg	651	$107,500	$197,200	37.4%	9.5%
Sabin	718	$128,500	$265,700	32.4%	0.7%
Adams	745	$93,594	$170,700	41.9%	6.1%
Courtland	770	$99,028	$275,600	32.5%	0.9%

A note before these figures: with a population of 710, St. Clair's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

St. Clair is a small community located in Minnesota, within Blue Earth County. The total population is 710. It ranks as the 424th most populous out of 914 Census-designated places in Minnesota.

Age Demographics

The median age in St. Clair is 43.4 years. This is 12% higher than the state median of 38.8 years.

Economy, Income & Housing

The median household income in St. Clair is $106,136. This is 19% higher than the state median of $89,062. It is also 31% higher than the national median of $80,734. The poverty rate stands at 4.9%. This is 47% lower than the state poverty rate of 9.3%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.3%. This is 43% lower than the state rate of 4.1%. The median home value is $218,000. Housing costs are 34% lower than the state median of $329,300. With a home-value-to-income ratio of just 2.1x, St. Clair is one of the most affordable housing markets in the area. 94.5% of occupied housing units are owner-occupied. This homeownership rate is 31% higher than the state average of 72.2%.

Race & Ethnicity

St. Clair has a predominantly White (non-Hispanic) population, comprising 86.5% of all residents. Hispanic or Latino residents account for 4.7%. The Asian population (0.3%) is well below the state average of 5.1%.

Education

31.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 21% lower than the state rate of 39.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 99.2%.

Data Sources & Methodology

All demographic data for St. Clair, Minnesota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Minnesota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 914 Census-designated places in Minnesota. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.

Free data download: Get all Minnesota city and county demographics as CSV. Download Cities CSV | Download Counties CSV

Frequently Asked Questions

What is the population of St. Clair, Minnesota?

St. Clair, Minnesota has a population of 710 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in St. Clair, MN?

The median household income in St. Clair is $106,136, which is 31% higher than the national median of $80,734.

What is the poverty rate in St. Clair, MN?

The poverty rate in St. Clair is 4.9%. This means approximately 35 residents live below the federal poverty line.

What is the racial makeup of St. Clair, Minnesota?

St. Clair's population is 86.5% White, 0.0% Black, 4.7% Hispanic/Latino, and 0.3% Asian.

What is the median home value in St. Clair, MN?

The median home value in St. Clair is $218,000. The home-value-to-income ratio is 2.1x.

How educated is St. Clair, Minnesota?

31.2% of adults (25+) in St. Clair hold a bachelor's degree or higher, and 7.9% hold a graduate or professional degree.