309 Area Code Information

State: IL

Largest City in Area: PEORIA

Where is Area Code 309? Area code (309) is in the state of IL. Below, are the major cities in the area code (309).

Major Cities in 309

  • PEORIA, IL (603,837)
  • BLOOMINGTON, IL (314,372)
  • MOLINE, IL (232,790)
  • NORMAL, IL (214,046)
  • ROCK ISLAND, IL (204,560)
  • PEKIN, IL (190,264)
  • EAST PEORIA, IL (168,431)
  • GALESBURG, IL (138,774)
  • EAST MOLINE, IL (136,741)
  • WASHINGTON, IL (120,238)

Zip Codes in 309

  • 61201
  • 61204
  • 61230
  • 61231
  • 61232
  • 61233
  • 61234
  • 61235
  • 61236
  • 61237
  • 61238
  • 61239
  • 61240
  • 61241
  • 61242
  • 61244
  • 61250
  • 61251
  • 61254
  • 61256

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