County · Illinois · United States
Piatt County ZIP codes
10 ZIP codes · 10 cities · FIPS 17147
Key facts
- State
- Illinois (IL)
- FIPS code
- 17147
- Population
- 16,702
- Median household income
- $87,516
- Median age
- 42.5
- Land area
- 439.2 sq mi (1,137.5 km²)
- Population density
- 38 / sq mi
- Area codes
- 217, 447
Cities and ZIP codes in Piatt County (10)
| City | ZIP codes |
|---|---|
| Bement | 61813 |
| Cerro Gordo | 61818 |
| Cisco | 61830 |
| De Land | 61839 |
| Hammond | 61929 |
| La Place | 61936 |
| Mansfield | 61854 |
| Milmine | 61855 |
| Monticello | 61856 |
| White Heath | 61884 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.