Mercer County, Illinois ZIP Codes

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ZIP Codes in Mercer County with Associated Cities & Towns

Mercer County, IL - Standard ZIP Codes
61231 | 61259 | 61260 | 61262 | 61264 | 61272 | 61279 | 61281 | 61412 | 61442 | 61465 | 61466 | 61476 | 61486
Mercer County, IL - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)
61263 | 61276
Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Mercer County Address Data

  • Businesses Addresses: 979
  • PO Box Addresses: 1,947
  • Residential Addresses: 11,374
    • Multi-Family Addresses: 577
    • Single Family Addresses: 10,797

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Map of Mercer County, IL ZIP Codes With Actual (Default) City Names

Aledo
Alexis
Joy
Keithsburg
Matherville
New Boston
New Windsor
North Henderson
Preemption
Seaton
Sherrard
Viola


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