ZIP Code 52557 Map
Census ZIP Code Tabulation Area 52557 in Fairfield, IA (Jefferson County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 52557 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
685
Median age
25.1 years
Bachelor's degree or higher
83.6%
Land area
0.3 sq mi
Population density
2,566 / sq mi