Johnston

Population : 8,649, Est. population in July 2002: 10,011 (+15.5% change) Males: 4,249 (49.1%), Females: 4,400 (50.9%)
County : Polk
Land area : 14.3 square miles
Zip code : 50131
Median Resident Age : 36.3 years
Median Household Income : $76,094
Median House Value : $188,300

Races in Johnston :
- White Non-Hispanic (95.3%)
- Hispanic (1.5%)
- Chinese (1.1%)
- Two or more races (0.6%)
- Black (0.6%)