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St. Louis, MI Demographics & ZIP Codes
St. Louis, Michigan demographics and median household income by ZIP code (in Gratiot County) — 1 ZIP codes — population 9,952 — median income $56,108 — avg. home value $134,000. Compare income, housing, and population across ZIP codes on US5.
Population
9,952
Median household income (avg.)
$56,108
75% of U.S. median
Average home value
$134,000
38% of U.S. median
Average rent
$676
58% of U.S. median
Median age (avg.)
39.7
St. Louis demographics
St. Louis, Michigan covers 1 ZIP code primarily in Gratiot County, with a combined ZIP-area population of about 9,952.
Across ZIP codes with age data, the average median age is about 39.7 years.
Median household income in St. Louis
The average median household income across ZIP codes in St. Louis, Michigan is about $56,108 — about 21% below the MI ZIP average ($71,237), and about 25% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $56,108 in 48880.
Housing in St. Louis
For housing in St. Louis, Michigan, the average median home value is about $134,000 and the average median rent is about $676.
The most populous ZIP in this set is 48880 (about 9,952 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in St. Louis
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 48880 | St. Louis | Gratiot County | MI | 9,952 | $56,108 | $134,000 |
Frequently asked questions
What are the demographics of St. Louis?
St. Louis, Michigan has a combined ZIP-area population of about 9,952 across 1 ZIP codes (primarily Gratiot County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in St. Louis?
The average median household income across ZIP codes in St. Louis, Michigan is about $56,108, about 21% below the state ZIP average ($71,237), and about 25% below the U.S. median ($75,149). Average median home value is about $134,000.
How many ZIP codes are in St. Louis?
St. Louis, Michigan includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for St. Louis?
This page lists ZIP codes in St. Louis, Michigan with population, median household income, and home value. Select a ZIP for a full demographics profile.