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Post Offices by County

MASON COUNTY, ILLINOIS

ZIP Code Post Office Date Established Date Discontinued
62617 BATH 09/07/1843
62633 EASTON 05/08/1873
61532 FOREST CITY 09/24/1861
62644 HAVANA
62655 KILBOURNE
61546 MANITO
62664 MASON CITY
62682 SAN JOSE
61567 TOPEKA 06/14/1861

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