ZIP Codes Box

Piatt County, Illinois ZIP codes

10ZIP codes
10Cities and towns
16,035People in ZIP areas
217, 309, 447Area codes

Piatt County is in Illinois and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Piatt County

ZIP codeCityTypePopulationMedian income
61813BementStandard2,043$84,063
61818Cerro GordoStandard1,560$84,375
61830CiscoStandard510$67,232
61839De LandStandard558$56,389
61854MansfieldStandard1,299$86,705
61855MilmineStandard24–
61856MonticelloStandard8,226$103,559
61884White HeathStandard973$106,250
61929HammondStandard672$79,167
61936La PlacePO Box only170–

Cities and towns in Piatt County

Area codes in Piatt County

Questions

How many ZIP codes are in Piatt County, IL?
Piatt County has 10 ZIP codes, 9 of them standard ZIP codes for street addresses.
What cities are in Piatt County?
Piatt County ZIP codes cover Bement, Cerro Gordo, Cisco, De Land, Hammond, La Place, Mansfield and Milmine and 2 other places.
What area code is Piatt County, IL?
Piatt County uses area codes 217, 309 and 447.
What time zone is Piatt County in?
Piatt County is in Central Time.

Other Illinois counties