ZipCode.org
 
 

Johnson County, IA Zip Codes

Johnson County, IA Demographic Information

Population:
111,006
Male Population:
55,254
Female Population:
55,752
Avg House Value:
$131,500
Avg Household Income:
$40,060
Avg Persons Per Household:
2.34
Median Age:
28.40
Median Age (Male):
28.00
Median Age (Female):
28.90
 
* Demographic data is based on information taken from the 2000 Census.

Johnson County, IA covers 10 Cities

 
Coralville ,IA
Hills ,IA
Iowa City ,IA
Lone Tree ,IA
North Liberty ,IA
Oakdale ,IA
Oxford ,IA
Solon ,IA
Swisher ,IA
Tiffin ,IA

Johnson County, IA covers 2 Area Codes

 
319 Area Code
563 Area Code