Port Huron, MI

City in St. Clair County, MI, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

28,620

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

Median Age

38.6

years ∙ half population younger than 38.6, half older

Diversity Index

36.3%

chance two random people differ in race and ethnicity

Nativity

2.1%

foreign-born population

97.9%Native

2.1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Port Huron is a city within St. Clair County, Michigan, United States.

Location

City in St. Clair County, MI, US

Co-ordinates

DEC42.993766° N, 82.433743° W

DMS42° 59′ 37.56″ N, 82° 26′ 01.47″ W

Population Density & area

3,533/sq mi (1,363/km²)

Total Area

12.3 sq mi (31.8 km²)

Land Area

8.1 sq mi (21 km²) · 66%

Water Area

4.2 sq mi (10.8 km²) · 34%

Demographics & Living

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

Population Composition

Key characteristics of the population

Sex Distribution

48.9% male

Male 48.9%

Female 51.1%

males per 100 females

Port Huron 95.5

St. Clair County 100.3

Michigan 98.2

Nativity

2.1%

foreign-born population

97.9%Native

2.1% Foreign-born

% Foreign-born

Port Huron 2.1%

St. Clair County 2%

Michigan 7.2%

Age Distribution

How the population is spread across age groups

Median Age

38.6

years ∙ half population younger than 38.6, half older

Port Huron

38.6

St. Clair County

44.5

Michigan

40.2

Dependency ratio

65.1

dependents per 100 working-age adults

Port Huron 65.1

St. Clair County 68.5

Michigan 66.3

AGE DISTRIBUTION

Distribution of age group

Median age

	Port Huron	St. Clair County	Michigan
Age Group
Children (Under 18)	21.5%	20.3%	21.2%
Working age (18-64)	60.5%	59.3%	60.2%
Senior (65+)	18%	20.4%	18.6%
Dependency ratio
Total dependency ratio	65.1	68.5	66.3
Child dependency ratio	35.5	34.2	35.3
Old-age dependency ratio	29.7	34.3	31

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

79%

Black

6.4%

Asian

0.9%

Hispanic

6.3%

Other

7.4%

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

36.3%

chance two random people differ in race and ethnicity

Port Huron 36.3%

St. Clair County 19.2%

Michigan 45.2%

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 Port Huron population

	Port Huron	St. Clair County	Michigan
Hispanic or Latino	6.3%	3.7%	5.9%
Mexican	5%	2.7%	4%
Puerto Rican	0.3%	0.3%	0.5%
Cuban	0.3%	0.2%	0.2%
Other Hispanic / Latino	0.7%	0.5%	1.2%
Not Hispanic or Latino	93.7%	96.3%	94.1%
One race	87%	92.7%	89.6%
White	79%	89.7%	72.4%
Black or African American	6.4%	2.1%	13.1%
American Indian and Alaska Native	0.2%	0.1%	0.3%
Asian	0.9%	0.5%	3.4%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0.4%	0.3%	0.5%
Two or more races (Multiracial)	6.7%	3.6%	4.5%

Household & Families Composition

Household size, type, and family structure

Household structure

56.3% family

Family 56.3%

Non family 43.7%

% family households

Port Huron 56.3%

St. Clair County 65.7%

Michigan 62.4%

Average household size

2.21

persons per household

Port Huron

2.21

St. Clair County

2.34

Michigan

2.42

Household & Family COMPOSITION

Households

Percentage of Port Huron population

	Port Huron	St. Clair County	Michigan
Total households	12,734	67,816	4,076,369
Average houshold size	2.21	2.34	2.42
Family households	7,164	44,528	2,545,621
Average family size	2.84	2.85	3.05
Married couple family	4,009	33,779	1,878,767
Other families	3,155	10,749	666,854
Male householder	761	3,473	199,150
Female householder	2,394	7,276	467,704
Non-family households	5,570	23,288	1,530,748
One-person households	4,409	19,112	1,250,418
Male householder	2,030	9,419	583,425
Senior (65+) living alone	592	3,685	188,594
Female householder	2,379	9,693	666,993
Senior (65+) living alone	1,180	5,463	349,637
Other living arrangements	1,161	4,176	280,330

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

13,729

housing units

Port Huron 13,729

St. Clair County 72,799

Michigan 4,622,236

Occupancy status

92.8% occupied

Occupied 92.8%

Vacant 7.2%

vacancy rate

Port Huron 7.2%

St. Clair County 6.8%

Michigan 11.8%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

73.5%

Single family houses

73.5%

Apartments in multi-unit structures

26.3%

Mobile homes

0.3%

Boat, RV, van, etc

Median Year Built

1955

Half of houses were built before 1955, and half after.

Historic ∙ 1939 or earlier

32.7%

Postwar & mid-century ∙ 1940 - 1969

38%

Late 20th century ∙ 1970 - 1999

22.7%

Modern ∙ 2000 or later

6.8%

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

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Port Huron	St. Clair County	Michigan
Rooms per unit
Median rooms	5.5	6	5.9
1–3 rooms	11.5%	7.1%	10.5%
4–6 rooms	55.3%	51.9%	51.9%
7+ rooms	33.2%	41%	37.6%
Bedrooms
No bedroom / studio	2.1%	1.3%	1.6%
1 bedroom	11.1%	6.2%	8.9%
2 bedrooms	29.7%	21.2%	24.6%
3 bedrooms	40.1%	50.2%	43.5%
4+ bedrooms	17%	21.1%	21.4%
At a glance
Median year built	1955	1975	1972
Total housing units	13,729	72,799	4,622,236

Occupancy Profile

Who is inside and how they use it

Homeownership

61.7% owners

Renter-occupied 38.3%

Owner-occupied 61.7%

homeownership rate

Port Huron 61.7%

St. Clair County 80.8%

Michigan 73.2%

Average household size

2.27

Owner-occupied

2.12

Renter-occupied

owner-occupied average size

Port Huron 2.27

St. Clair County 2.41

Michigan 2.54

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Port Huron	St. Clair County	Michigan
Total occupied units	12,734	67,816	4,076,369
Year moved in
2020 or later	26.5%	19%	21%
2010 to 2019	38.4%	37.7%	39.5%
2000 to 2009	17.4%	17.1%	16%
1999 or earlier	17.7%	26.2%	23.4%
Occupants per room
1.00 or fewer	99.2%	98.9%	98.4%
1.01 to 1.50	0.4%	0.8%	1.2%
1.51 or more	0.4%	0.3%	0.4%
Vehicles availability
No vehicles	12.2%	5.9%	7%
1 vehicle	43.4%	30.4%	34.8%
2 vehicles	32.7%	38.7%	38.3%
3 or more vehicles	11.7%	25%	19.8%
House heating fuel used
Gas	89%	85.9%	83.6%
Electricity	9.5%	9%	12.1%
Solar	0.1%	0.1%	0%
Fuel oil, kerosene etc	0.1%	0.9%	0.8%
All other fuels	0.7%	3.5%	3%
No fuel used	0.7%	0.7%	0.5%
Selected characteristics
Lacking complete plumbing	1.3%	0.5%	0.4%
Lacking complete kitchen	1.2%	0.7%	0.7%
No telephone service available	1.6%	0.9%	0.7%

Housing Value

What owner-occupied units are worth

Median home value

$149,300

owner-occupied units

Median value(USD)

Port Huron

$149,300

St. Clair County

$224,600

Michigan

$231,600

Housing Cost Burden

24.7%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

24.7%

Owners without a mortgage

14.1%

Renters

65.2%

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

	Port Huron	St. Clair County	Michigan
Property value
Median Value	$149,300	$224,600	$231,600
Under $100,000	24.4%	13.6%	16.8%
$100,000 - $200,000	51.8%	28.9%	24.7%
$200,000 - $300,000	13.8%	26.2%	23.4%
$300,000 - $500,000	5.9%	24.7%	24.1%
$500,000 - $1,000,000	4%	5.8%	9.2%
$1,000,000 and more	0%	0.7%	1.6%
Owner-occupied households
With a mortgage	58.2%	57.3%	57.8%
Without a mortgage	41.8%	42.7%	42.2%
Median monthly owner costs
With a mortgage	$1,140	$1,469	$1,569
Without a mortgage	$562	$600	$602
Gross rent
Median rent	$982	$1,029	$1,129

Education Profile

How educated is the community and how education pays off

Adults with a college degree

18.1%

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

Port Huron 18.1%

St. Clair County 20.3%

Michigan 32.4%

Adults without a high school diploma

12%

of adults (25+) without a high school diploma

Port Huron 12%

St. Clair County 7.9%

Michigan 8%

School Enrollment

Who is enrolled in school and at what level

School enrollment

5,885

population (age 3+) enrolled in school

Nursery / Preschool

K–12

76.3%

College / Undergraduate

17%

Graduate / Professional

0.6%

College-going rate (18-24 yr olds)

18%

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

Port Huron

18%

St. Clair County

22.9%

Michigan

41.1%

Enrollment & school type

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

Population 3+ currently enrolled in a school

	Port Huron	St. Clair County	Michigan
Total enrolled (age 3+)	5,885	31,184	2,312,914
Nursery / preschool	6%	5.9%	5.6%
K–12	76.3%	77.6%	67.9%
Kindergarten	2.9%	5.1%	5.2%
Elementary: Grades 1–4	22.6%	21.6%	19.7%
Elementary: Grades 5–8	22.6%	25.1%	20.8%
High School: Grades 9–12	28.2%	25.8%	22.2%
College or graduate school	17.6%	16.5%	26.5%
College, undergraduate	17%	14.7%	21.1%
Graduate, professional school	0.6%	1.8%	5.4%
College-going rate · 18-24 yr olds	18%	22.9%	41.1%
School type
Public school	88.5%	86.3%	85.2%
Private school	11.5%	13.7%	14.8%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

19,581

population 25 years and over

Total adults (25+)

Less than 9th grade

2.9%

9th-12th, no diploma

9.1%

HS graduate

34.4%

Some college no degree

25.2%

Associates degree

10.2%

Bachelors degree

12.5%

Graduate or professional degree

5.7%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

42.5% · 57.5%

9th-12th, no diploma

53% · 47%

HS graduate

48.7% · 51.3%

Some college no degree

44.8% · 55.2%

Associates degree

40.5% · 59.5%

Bachelors degree

41.4% · 58.6%

Graduate or professional degree

43.7% · 56.3%

Educational Attainment Overview

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

Highest credential completed · adults 25+

	Port Huron	St. Clair County	Michigan
Population (25+)	19,581	115,640	7,008,507
Less than 9th grade	2.9%	1.9%	2.6%
9th–12th, no diploma	9.1%	6%	5.4%
High school diploma or GED	34.4%	33%	28%
Some college, no degree	25.2%	26%	21.9%
Associate's degree	10.2%	12.7%	9.8%
Bachelor's degree or higher	18.1%	20.3%	32.4%
Bachelor's degree	12.5%	12.8%	19.7%
Graduate or professional	5.7%	7.5%	12.7%
High School or higher	88%	92%	92.1%

Earnings by education level

percentage as applicable

Median Earnings

$36,353

Median earnings for adults 25+, by level

Less than HS graduate

$25,727

HS graduate

$31,893

Some college or associates

$36,781

Bachelors degree

$48,883

Graduate or professional degree

$74,795

Poverty Rate

5.8%

for ages 25+, with bachelors degree or higher

Less than HS graduate

32.6%

HS graduate

24.3%

Some college or associates

15%

Bachelors degree or higher

5.8%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Port Huron	St. Clair County	Michigan
Median earnings
Population 25+, with earnings	$36,353	$47,476	$50,316
Less than high school graduate	$25,727	$30,677	$31,851
High school graduate (includes equivalency)	$31,893	$39,059	$37,777
Some college or associate's degree	$36,781	$47,458	$44,844
Bachelor's degree	$48,883	$62,466	$66,893
Graduate or professional degree	$74,795	$73,851	$85,195
Poverty rates
Less than high school graduate	32.6%	20.7%	27.4%
High school graduate (includes equivalency)	24.3%	12.7%	15.2%
Some college or associate's degree	15%	8.6%	10.3%
Bachelor's degree or higher	5.8%	3.1%	4.2%

Insights for Port Huron, 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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