| ZIP Codes: | 16 ZIP Codes (12 Standard, 4 PO Box, 0 Unique) [See All] |
| Area Code: | 517 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:32 PM |
| Population: | 42,291 [See All] |
| FIPS: | 26059 |
| CBSA: | Hillsdale, MI |
| Land Area: | 555 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 41.9297, -84.5722 |
| Quick Link: |
42,291 residents live across 16 ZIPs covering 555 sq mi, served by 16 distinct USPS-recognized cities.
Population moved from 43,266 to 42,262 from 2014 to 2024 — a -2.3% change. 5 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 49249 (Jerome, $82,407 median) and poorest ZIP 49227 (Allen, $53,587) are 17.2 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.5× across this county — from $144,800 in 49252 (Litchfield) to $224,000 in 49249 (Jerome).
Density varies 4× across the county — from 40 people/sq mi in 49288 (Waldron) to 158 in 49242 (Hillsdale).
Educational attainment ranges from 7.7% bachelor's+ in 49232 (Camden) to 28.8% in 49249 (Jerome) — the breadth of educational profiles across the area.
Within Michigan, this is the #39 most populous of 83 counties and ranks #64 for median household income .
Weighted by population, the typical household earns about $62,368 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.5% of adults age 25+ hold a bachelor's degree or higher (5,941 of 29,024 reporting).
12 Standard delivery, 4 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 |
|---|---|---|---|---|---|---|
| 49242 | Hillsdale | Standard | 14,750 | $61,029 | 93.2 | 0.1% |
| 49250 | Jonesville | Standard | 5,653 | $65,744 | 78.9 | -8.1% |
| 49274 | Reading | Standard | 3,679 | $58,087 | 60.9 | -1.6% |
| 49249 | Jerome | Standard | 3,462 | $82,407 | 28.8 | -4.8% |
| 49266 | Osseo | Standard | 2,982 | $66,173 | 46.7 | -2.6% |
| 49232 | Camden | Standard | 2,790 | $56,324 | 64.7 | 2.0% |
| 49252 | Litchfield | Standard | 2,556 | $55,762 | 40.1 | 2.2% |
| 49271 | Pittsford | Standard | 2,280 | $56,389 | 53.3 | 3.1% |
| 49288 | Waldron | Standard | 1,483 | $66,833 | 36.6 | -1.7% |
| 49227 | Allen | Standard | 1,287 | $53,587 | 25.7 | 11.8% |
| 49262 | North Adams | Standard | 1,258 | $54,423 | 23.7 | -7.4% |
| 49282 | Somerset Center | Standard | 82 | $34,911 | 2.6 | -83.0% |
| 49258 | Mosherville | PO Box | 29 | — | 0.0 | — |
| 49281 | Somerset | PO Box | — | — | 0.0 | — |
| 49257 | Moscow | PO Box | — | — | 0.0 | — |
| 49239 | Frontier | PO Box | — | — | 0.0 | — |