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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Linn County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Linn County.

County State ZIP Code City Area Codes
Linn County IA 52498 Cedar Rapids 319
Linn County IA 52499 Cedar Rapids 319
Linn County KS 66010 Blue Mound 620, 913
Linn County KS 66014 Centerville 785, 913
Linn County KS 66040 La Cygne 660, 816, 913
Linn County KS 66056 Mound City 913
Linn County KS 66072 Parker 785, 913
Linn County KS 66075 Pleasanton 660, 913
Linn County KS 66767 Prescott 620, 660, 913
Linn County MO 63557 New Boston 660
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.