Zip Code 49878 — Rapid River, MI
49878 is a ZIP Code associated with Rapid River, MI, located within Delta. 49878 ranks #3 out of 10 ZIP codes in Delta County by population (and #568 out of 992 in MI). The area supports an estimated population of 3,329 residents across Data Pending housing units, with a population density of 2.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (45.958520, -86.865160)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 49878 |
| Primary City | Rapid River |
| State / Province | MI |
| County | Delta |
| Total Population | 3,329 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 2.8 people/sq mi |
| Timezone | America/Detroit |
How 49878 Compares
| Metric | ZIP 49878 | Delta County | MI State Average |
|---|
| Population | 3,329 | 36,382 (Total) | 10,077,716 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 2.8 /sq mi | -- | -- |
| County Pop Rank | #3 of 10 | -- | -- |
Nearby ZIP Codes
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 →