ZIP Codes Box

Johnson County, Iowa ZIP codes

14ZIP codes
9Cities and towns
153,959People in ZIP areas
319, 563Area codes

Johnson County is in Iowa 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 Johnson County

ZIP codeCityTypePopulationMedian income
52235HillsPO Box only974$83,333
52240Iowa CityStandard35,074$52,960
52241CoralvilleStandard23,250$69,243
52242Iowa CityStandard4,688–
52243Iowa CityUnique––
52244Iowa CityPO Box only––
52245Iowa CityStandard22,853$78,020
52246Iowa CityStandard22,308$62,521
52317North LibertyStandard23,097$105,318
52322OxfordStandard2,266$64,444
52333SolonStandard7,295$118,721
52338SwisherStandard3,934$119,605
52340TiffinStandard6,128$98,393
52755Lone TreeStandard2,092$102,434

Cities and towns in Johnson County

Area codes in Johnson County

Questions

How many ZIP codes are in Johnson County, IA?
Johnson County has 14 ZIP codes, 11 of them standard ZIP codes for street addresses.
What cities are in Johnson County?
Johnson County ZIP codes cover Iowa City, Coralville, Hills, Lone Tree, North Liberty, Oxford, Solon and Swisher and 1 other places.
What area code is Johnson County, IA?
Johnson County uses area codes 319 and 563.
What time zone is Johnson County in?
Johnson County is in Central Time.

Other Iowa counties