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City ZIP codes · Illinois

Bloomington, IL ZIP Codes

8 ZIP codes use the postal name Bloomington, Illinois (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 3 residential and 5 for PO boxes or a single organization. Median household income runs from $57,130 in 61701 to $120,547 in 61705, 2.1 times as much (Census Bureau, ACS 2020-2024). Bloomington's most populous ZIP code is 61704, with 37,279 people (ACS 2020-2024); 66% of its land is in the city of Bloomington.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Bloomington's ZIP codes?

61701: $57k median household income61704: $95k median household income61705: $121k median household income61705617046170161701: $57k median household income61704: $95k median household income61705: $121k median household income617056170461701: $57k median household income61704: $95k median household income61705: $121k median household income61705
The 3 residential ZIP codes named Bloomington, 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 Bloomington's ZIP codes?

The highest median household income is in 61705 ($120,547), the lowest in 61701 ($57,130). Home values run from $144,500 in 61701 to $328,200 in 61705.

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

All 3 residential ZIP codes of Bloomington

Residential ZIP codes with the postal name Bloomington, IL, largest first (ACS 2020-2024); sort by any column
County
61704 McLean County 37,279 1,958 $95k $248k
61701 McLean County 35,136 3,186 $57k $145k
61705 McLean County 13,213 152 $121k $328k

Download the 8 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 Bloomington

5 ZIP codes named Bloomington 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.

Bloomington, 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
61702McLean County
61709McLean County
61710McLean County
61791McLean County
61799McLean County

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

Which counties do Bloomington's ZIP codes reach?

Bloomington's residential ZIP codes lie in McLean County.

Which places do Bloomington's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Bloomington's residential ZIP codes cover Bloomington itself and 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Twin Grove census-designated 61705

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Bloomington'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 Bloomington starts with 617.

Three-digit prefixes of Bloomington'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 Bloomington's
PrefixSectional centerHereAll codes
617 Champaign, IL (SCF 618) 8 60

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