Sponsored Listings:
Braceville Post Office
106 N Mitchell St
Braceville, Illinois 60407
Coal City Post Office
495 S Broadway St
Coal City, Illinois 60416
Gardner Post Office
106 E Jefferson St
Gardner, Illinois 60424
Kinsman Post Office
200 Main St
Kinsman, Illinois 60437
Mazon Post Office
600 Depot St
Mazon, Illinois 60444
Minooka Post Office
301 W Mondamin St
Minooka, Illinois 60447
Morris Post Office
202 E Washington St
Morris, Illinois 60450
South Wilmington Post Office
280 3rd Ave
South Wilmington, Illinois 60474
Verona Post Office
421 N Division St
Verona, Illinois 60479
Grundy County
There are 9 US Post Offices in Grundy County serving a total of 51,030 residents equating to 5,670 residents per post office. It's estimated that approximately 81,450 packages are handled across the 9 county post offices annually. Grundy County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 50,063. Its county seat is Morris. Grundy County is part of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area. In 2010, the center of population of Illinois was located in Grundy County, just northeast of the village of Mazon. Illinois's State Fossil, the unique and bizarre Tully Monster, was first found in Mazon Creek. Grundy County Speedway is located in Morris. Grundy County is also home to Dresden Generating Station\u2014the first privately financed nuclear power plant built in the United States\u2014and the Morris Operation\u2014the only de facto high-level radioactive waste storage site in the United States."