County · Illinois · United States
Peoria County ZIP codes
24 ZIP codes · 16 cities · FIPS 17143
Key facts
- State
- Illinois (IL)
- FIPS code
- 17143
- Population
- 179,831
- Median household income
- $64,938
- Median age
- 38.1
- Land area
- 618.7 sq mi (1,602.5 km²)
- Population density
- 291 / sq mi
- Area codes
- 309
Cities and ZIP codes in Peoria County (16)
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.