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Zip Code 48039 — Marine City, MI

48039 is a ZIP Code associated with Marine City, MI, located within St. Clair. The postal region supports an estimated population of 7,437 residents across Data Pending housing units, with a population density of 124.8 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.696640, -82.550520)

Data Metric	Local Statistic
Postal / Zip Code	48039
Primary City	Marine City
State / Province	MI
County	St. Clair
Total Population	7,437
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	124.8 people/sq mi
Timezone	America/Detroit

How 48039 Compares

Metric	ZIP 48039	St. Clair County	MI State Average
Population	7,437	161,718	10,077,716
Median Income	Data Pending	N/A	N/A
Population Density	124.8 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 48001	Algonac	4.4 mi	11,224	N/A
Zip 48054	East China	5.1 mi	7,188	N/A
Zip 48023	Fair Haven	5.5 mi	5,031	N/A
Zip 48064	Casco	7.9 mi	4,180	N/A
Zip 48028	Harsens Island	8.2 mi	1,272	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →