Postmaster Finder
Postal History
Research Sources
Postmaster Finder
Post Offices by County
ROCK COUNTY,
WISCONSIN
ZIP Code
Post Office
Date Established
Date Discontinued
53501
AFTON
12/22/1854
53505
AVALON
53511
BELOIT
53525
CLINTON
53534
EDGERTON
53536
EVANSVILLE
03/03/1851
53537
FOOTVILLE
07/06/1846
53542
HANOVER
53545
JANESVILLE
53563
MILTON
MILTON JUNCTION
06/22/1974
53576
ORFORDVILLE
05/14/1857
SPRING VALLEY
06/04/1846
07/27/1866
53592
TIFFANY
04/09/1984
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