St. Clair is a city in St. Clair County in the eastern "Thumb" of the U.S. state of Michigan. As of the 2020 census, St. Clair had a population of 5,464. The city is located on the St. Clair River near the southeast corner of St. Clair Township .

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How St. Clair ranks

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#8Most new homes in MI #50Fewest uninsured in MI #96Highest graduation rate in MI All MI rankings →

Town numbers

ZIP code48079

Area codeSign in to add

Living in St. Clair

Housing in St. Clair

$305K Median sale price · Redfin, May 2026

The median sale price was $305,000 in May 2026.

A strong seller's market

Buyer’sBalancedSeller’s

Days on market36

Sale-to-list98.6%

Sold in May11

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in St. Clair

B⁺

Safety Grade B+

St. Clair reports less crime per resident than 74% of the U.S. towns and cities we grade.

Violent crime per 1,000

St. Clair 2

Michigan 4.3

U.S. 3.3

Property crime per 1,000

St. Clair 5.9

Michigan 13

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Work & commute in St. Clair

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Most working residents leave St. Clair for work: only 10% work in town. The top destinations are Port Huron (8%), Marysville (6%) and Detroit (5%). Half commute less than 28 miles.

Port Huron

Marysville

Detroit

Troy

10%Work in townlive and work in St. Clair 28 miWhere do people commute?the commute map 2,598Jobs based herebalanced

Census LEHD 2021 · ACSWork & commute in St. Clair →

Health in St. Clair

Health Grade B

Healthier than 64% of U.S. towns on seven CDC estimates, and 81% of towns with similar incomes.

Compared with Michigan

5better than MI·1worse

of 32 measures CDC estimates. The other 26 are too close to call.

Conditions 1▼ 11 close Habits all close Care 1▲ 6 close Mind all close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

10.9%Fewer adults facing food insecurityMI 15.4% · better 6.2%Fewer adults facing a utility shut-offMI 8.7% · better 10.2%More adults who have had cancerMI 8.9% · worse

Care nearby

Ascension River District HospitalEast China · 2.9 mi · ER

Community First Health Centers - Port HuronPort Huron · 10.7 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for St. Clair · CMS · HRSAHealth in St. Clair →

Natural hazards in St. Clair

Low

Expected storm and flood damage is higher than in 20% of U.S. communities.

🌊 Inland flooding🥶 Cold waves🌪️ Tornadoes

6Does St. Clair flood?paid flood claims since 1985 2Disasters that paid out herefederal disasters sent FEMA money to St. Clair MapSt. Clair vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in St. Clair →

Climate in St. Clair

Full climate →

St. Clair has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 18°, and about 36 inches of snow falls in a normal winter.

34° / 21°Winter

56° / 37°Spring

80° / 61°Summer

61° / 44°Fall

How much snow does St. Clair get?About 36 inches a winter.Rain & snow →When is the first frost?Around Nov 3, with the last in spring around Apr 19.Frost dates →Is it warmer than it used to be?+1.7° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in St. Clair →

Schools in St. Clair

All St. Clair schools →

B⁺

School Grade B+

The public schools St. Clair’s kids attend, from kindergarten through graduation, outperform 73% of Michigan’s districts on state tests and graduation. Among towns with similar incomes, they rank near the top.

#163Best public schoolsof 490 in MI

DistrictEast China School DistrictSchools1

Gearing Elementary School B+Elementary · Grades PK–4 · 353 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within MI. Ratings are from neighbors.