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Post Offices by County

JASPER COUNTY, IOWA

ZIP Code Post Office Date Established Date Discontinued
50028 BAXTER
50054 COLFAX 01/18/1865
50135 KELLOGG 06/02/1865
50137 KILLDUFF
50153 LYNNVILLE
50168 MINGO
50170 MONROE
50208 NEWTON 09/28/1847
50228 PRAIRIE CITY
50232 REASNOR
50251 SULLY 02/08/1883

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