Zip Code 51571 — Silver City, IA
51571 is a ZIP Code associated with Silver City, IA, located within Mills. 51571 ranks #4 out of 7 ZIP codes in Mills County by population (and #499 out of 970 in IA). The area supports an estimated population of 902 residents across Data Pending housing units, with a population density of 7.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (41.145820, -95.609940)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 51571 |
| Primary City | Silver City |
| State / Province | IA |
| County | Mills |
| Total Population | 902 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 7.6 people/sq mi |
| Timezone | America/Chicago |
How 51571 Compares
| Metric | ZIP 51571 | Mills County | IA State Average |
|---|
| Population | 902 | 13,496 (Total) | 3,210,984 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 7.6 /sq mi | -- | -- |
| County Pop Rank | #4 of 7 | -- | -- |
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 →