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Illinois ZIP Codes

Illinois ZIP codes cover major cities like Chicago, Springfield, Peoria, and other urban and rural areas across the state. ZIP codes starting with 600–629 are unique to Illinois.

Quick Facts

  • Total ZIP Codes: 1,552
  • Largest City: Chicago
  • ZIP Range: 60001 – 62999
  • Area Codes: 217, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872

Population Highlights

  • Chicago Metro: ~9.5M
  • Springfield Metro: ~0.2M
  • Peoria Metro: ~0.4M

Major Counties

  • Cook: 60001–60899
  • DuPage: 60101–60599
  • Lake: 60002–60099
  • Will: 60401–60599
  • Sangamon: 62701–62799

Regional ZIP Distribution

  • Northern IL: 60001–62999
  • Central IL: 61701–62799
  • Southern IL: 62801–62999

Area Codes

  • 217, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872: Entire state

Transportation & Landmarks

  • Major Airports: O’Hare (ORD), Midway (MDW)
  • Major Highways: I-55, I-57, I-80, I-90, I-94
  • Landmarks: Willis Tower, Navy Pier

Notable ZIP Codes

Some ZIP codes in Illinois are especially significant. 60601 covers downtown Chicago, 62701 covers central Springfield, and 61602 covers Peoria. Rural ZIP codes include 62002 and 62901.

Illinois ZIP Code Directory

ZIP Code ▲ Common City ▲

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