City
Mill Spring, NC ZIP codes
1 ZIP, including 28756 as primary city.
Map of Mill Spring
ZIP code map
ZIP share of this city
Population share
No overlap percents for this place — ZIP codes are listed from the city or county field.
ZIP codes in Mill Spring
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 28756 | Mill Spring | Polk County | 4,468 | $54,112 |