Fairfield, IA zip codes

Fairfield, Iowa has 2 zip codes. Most of it is in Jefferson County. Together these zip codes are home to about 12K people.

Zip codes

Population

12K

All zips combined

Largest zip

52556

11,448 residents

Zip codes in Fairfield

Zip	Type	Population	IncomeMedian income	Home value
52556	Residential	11,448	$59,243	$166,800
52557	Residential	685	—	—