St. Clair County, MI ZIP Codes

21 ZIP codes cover all or part of St. Clair County, Michigan. The Census Bureau counts 160,221 residents in the county, with a median household income of $71,270 and a median home value of $224,600. Median household income ranges from $53,018 in 48060 to $109,730 in 48028. Its largest communities include Port Huron, Marysville, Richmond, St. Clair and Pearl Beach.

St. Clair County (Census county figures)

MeasureCensus figure
Residents160,221
Households67,816
Median household income$71,270
Median home value$224,600
Median age44.5
Median rent$1,029

All 21 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)161,718
Households (sum of ZIP codes)68,399
Median household income, range across ZIP codes$53,018 (48060) to $109,730 (48028)
Household-weighted average of ZIP medians (an approximation, not a true median)$71,705
Homeowners80.8%
Households with kids under 1826.3%
Moved in the past year9.5%
Carrier routes in EDDM2GO's route library75 routes, 37,654 homes (11 of 21 ZIP codes)

Top facts

Every ZIP code in St. Clair County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
48060Port Huron39,34217,167$53,018$160,90063.0%27.7%15.4%3318,768100% of its land
48059Fort Gratiot15,4996,654$80,062$221,70083.1%26.1%8.6%——100% of its land
48079Saint Clair12,7115,348$79,891$293,00082.1%26.2%7.2%——100% of its land
48001Algonac11,2245,143$69,160$257,40086.3%18.4%10.1%——100% of its land
48040Marysville9,9254,322$66,901$208,60083.9%27.2%7.4%104,822100% of its land
48074Smiths Creek9,6243,796$71,047$197,50089.0%31.5%7.9%74,232100% of its land
48039Marine City7,4373,266$82,755$181,30087.0%22.7%5.0%——100% of its land
48054East China7,1882,933$83,241$301,40086.3%17.7%5.9%63,220100% of its land
48049North Street5,4682,199$84,028$235,70089.8%24.3%5.6%——100% of its land
48097Yale5,4182,184$63,659$198,70082.1%30.5%7.0%——78% of its land
48023Fair Haven5,0312,094$70,469$244,20080.4%26.2%8.7%——100% of its land
48041Memphis4,3021,829$75,677$316,50089.1%25.4%5.4%——97% of its land
48014Capac4,2941,806$66,800$217,90087.6%28.8%16.2%31,41396% of its land
48063Columbus4,2061,609$93,844$323,20087.4%35.6%8.3%——100% of its land
48064Casco4,1801,521$87,538$303,20094.7%32.5%5.6%31,864100% of its land
48006Avoca3,8891,528$71,385$240,20094.4%33.7%7.8%41,495100% of its land
48027Goodells3,1871,142$90,417$273,70087.8%29.5%7.8%——100% of its land
48002Allenton3,1201,345$93,948$313,10098.3%31.7%5.8%31,234100% of its land
48022Emmett2,5301,077$96,809$239,80097.6%18.5%3.7%3991100% of its land
48032Jeddo1,871752$96,875$263,90092.2%30.9%5.2%288080% of its land
48028Harsens Island1,272684$109,730$390,80098.2%3.7%6.0%1903100% of its land

A ZIP code is listed for St. Clair County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Rankings

Price a mailing to St. Clair County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in St. Clair County, MI?
48060, 48059, 48079, 48001, 48040, 48074, 48039, 48054, 48049, 48097, 48023, 48041, 48014, 48063, 48064, 48006, 48027, 48002, 48022, 48032 and 48028. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of St. Clair County?
160,221 residents in 67,816 households (ACS 5-year estimates, 2020–2024).
What is the median household income in St. Clair County?
$71,270 for the county as a whole. Its ZIP codes range from $53,018 (48060) to $109,730 (48028).
Which St. Clair County ZIP code has the highest median household income?
48028, at $109,730, among ZIP codes with at least 1,000 residents. See the full ranking of St. Clair County ZIP codes by income.
How many carrier routes and mailboxes are in St. Clair County?
For the 11 of 21 ZIP codes in EDDM2GO's stored route library: 75 carrier routes reaching 37,654 residential and 2,142 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.