Winnebago County Post Offices

1140 Broadway
Rockford, Illinois 61104

210 E State St
Cherry Valley, Illinois 61016

401 S Main St Fl 1
Rockford, Illinois 61101

211 N Center St
Durand, Illinois 61024

111 N 6th St
Rockford, Illinois 61107

2440 Kilburn Ave
Rockford, Illinois 61101

1702 Windsor Rd
Loves Park, Illinois 61111

120 E 3rd St
Pecatonica, Illinois 61063

5225 Harrison Ave
Rockford, Illinois 61125

214 W Main St
Rockton, Illinois 61072

11320 Main St
Roscoe, Illinois 61073

3057 S Pecatonica Rd
Seward, Illinois 61077

13047 Putnam St
Shirland, Illinois 61079

311 Oak Grove Ave
South Beloit, Illinois 61080

105 Landmark Dr
Winnebago, Illinois 61088

Winnebago County

There are 15 US Post Offices in Winnebago County serving a total of 176,704 residents equating to 11,780 residents per post office. It's estimated that approximately 282,039 packages are handled across the 15 county post offices annually. Winnebago County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 295,266, making it the seventh most populous county in Illinois behind Cook County and its five surrounding collar counties. Its county seat is Rockford. Winnebago County is part of the Rockford, IL Metropolitan Statistical Area."