ZIP code · Colfax · Illinois · United States
ZIP code 61728 — Colfax
ZIP code 61728 serves Colfax, Illinois.
- Postal code
- 61728Single source Value from one source, not cross-checked.
- City
- Colfax
- County
- McLean
- State
- Illinois
- Country
- United States
- Coordinates
- 40.5704, -88.6200 — precision precise (locality)
View on OpenStreetMap - Population
- 1,316 (ZCTA, ACS 5-year)
- Median household income
- $93,654
- Median age
- 36.9
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · census-acs5. Data generated on 2026-08-21. Methodology · Report an error on this page