| ZIP Codes: | 15 ZIP Codes (12 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 989 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:32 PM |
| Population: | 43,623 [See All] |
| FIPS: | 26057 |
| CBSA: | Alma, MI |
| Land Area: | 611 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 43.3044, -84.6261 |
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43,623 residents live across 15 ZIPs covering 611 sq mi, served by 15 distinct USPS-recognized cities.
Population moved from 44,502 to 43,564 from 2014 to 2024 — a -2.1% change. 5 ZIPs gained residents, 8 lost.
The county's wealthiest ZIP 48856 (Middleton, $91,413 median) and poorest ZIP 48801 (Alma, $58,750) are 13.1 miles apart — a 1.6× income gap across local geography.
Median home values vary 2.1× across this county — from $108,200 in 48807 (Bannister) to $230,600 in 48871 (Perrinton).
Density varies 8× across the county — from 25 people/sq mi in 48662 (Wheeler) to 194 in 48801 (Alma).
Educational attainment ranges from 9.4% bachelor's+ in 48880 (Saint Louis) to 28.5% in 48801 (Alma) — the breadth of educational profiles across the area.
Within Michigan, this is the #37 most populous of 83 counties and ranks #39 for median household income .
Weighted by population, the typical household earns about $64,001 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.8% of adults age 25+ hold a bachelor's degree or higher (5,691 of 30,263 reporting).
12 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 48801 | Alma | Standard | 13,278 | $58,750 | 68.5 | 2.5% |
| 48880 | Saint Louis | Standard | 9,994 | $59,922 | 75.4 | -3.1% |
| 48847 | Ithaca | Standard | 5,663 | $66,264 | 122.1 | -2.8% |
| 48615 | Breckenridge | Standard | 3,061 | $70,000 | 57.6 | 1.3% |
| 48871 | Perrinton | Standard | 2,103 | $84,803 | 31.7 | -1.4% |
| 48877 | Riverdale | Standard | 1,962 | $64,653 | 33.3 | -20.7% |
| 48806 | Ashley | Standard | 1,752 | $61,375 | 66.7 | 3.9% |
| 48889 | Sumner | Standard | 1,528 | $60,200 | 30.0 | 21.5% |
| 48832 | Elwell | Standard | 1,307 | $73,393 | 24.7 | 0.8% |
| 48662 | Wheeler | Standard | 1,185 | $70,321 | 47.5 | -23.2% |
| 48856 | Middleton | Standard | 966 | $91,413 | 28.3 | -1.1% |
| 48807 | Bannister | Standard | 658 | $60,825 | 24.8 | -20.5% |
| 48874 | Pompeii | PO Box | 107 | $75,774 | 0.6 | -46.2% |
| 48862 | North Star | PO Box | 59 | $51,563 | 0.0 | — |
| 48830 | Elm Hall | PO Box | — | — | 0.0 | — |