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City ZIP codes · Illinois

Champaign, IL ZIP Codes

6 ZIP codes use the postal name Champaign, Illinois (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 3 residential and 3 for PO boxes or a single organization. Median household income runs from $70,715 in 61821 to $99,006 in 61822, 1.4 times as much (Census Bureau, ACS 2020-2024). Champaign's most populous ZIP code is 61820, with 40,599 people (ACS 2020-2024); 95% of its land is in the city of Champaign.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Champaign's ZIP codes?

61820: $28k median household income61821: $71k median household income61822: $99k median household income61822618216182061820: $28k median household income61821: $71k median household income61822: $99k median household income61822618216182061820: $28k median household income61821: $71k median household income61822: $99k median household income6182261821
The 3 residential ZIP codes named Champaign, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Champaign's ZIP codes?

The highest median household income is in 61822 ($99,006), the lowest in 61821 ($70,715). Home values run from $181,800 in 61821 to $287,000 in 61822.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 3 residential ZIP codes of Champaign

Residential ZIP codes with the postal name Champaign, IL, largest first (ACS 2020-2024); sort by any column
County
61820 Champaign County 40,599 6,843 $28k $185k
61821 Champaign County 28,611 3,719 $71k $182k
61822 Champaign County 27,642 258 $99k $287k

Download the 6 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Champaign

3 ZIP codes named Champaign have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Champaign, IL: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
61824Champaign County
61825Champaign County
61826Champaign County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Champaign's ZIP codes reach?

Champaign's residential ZIP codes lie in Champaign County.

Which first three digits do Champaign's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Champaign starts with 618.

Three-digit prefixes of Champaign's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Champaign's
PrefixSectional centerHereAll codes
618 Champaign, IL (SCF 618) 6 62

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.