County · Illinois · United States
McLean County ZIP codes
25 ZIP codes · 23 cities · FIPS 17113
Key facts
- State
- Illinois (IL)
- FIPS code
- 17113
- Population
- 170,882
- Median household income
- $78,329
- Median age
- 34.2
- Land area
- 1,183.2 sq mi (3,064.6 km²)
- Population density
- 144 / sq mi
- Area codes
- 309, 815
Cities and ZIP codes in McLean County (23)
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.