Post Office in Illinois
Explore all public post offices in Illinois including locations, contact details and services.
Choose Your County
- Adams County14 Offices
- Alexander County6 Offices
- Bond County7 Offices
- Boone County5 Offices
- Brown County3 Offices
- Bureau County23 Offices
- Calhoun County4 Offices
- Carroll County7 Offices
- Cass County6 Offices
- Champaign County30 Offices
- Christian County11 Offices
- Clark County5 Offices
- Clay County5 Offices
- Clinton County12 Offices
- Coles County7 Offices
- Cook County160 Offices
- Crawford County8 Offices
- Cumberland County4 Offices
- De Witt County7 Offices
- DeKalb County14 Offices
- Douglas County9 Offices
- DuPage County32 Offices
- Edgar County8 Offices
- Edwards County4 Offices
- Effingham County9 Offices
- Fayette County7 Offices
- Ford County9 Offices
- Franklin County16 Offices
- Fulton County20 Offices
- Gallatin County6 Offices
- Greene County10 Offices
- Grundy County9 Offices
- Hamilton County3 Offices
- Hancock County14 Offices
- Hardin County3 Offices
- Henderson County8 Offices
- Henry County14 Offices
- Iroquois County23 Offices
- Jackson County14 Offices
- Jasper County7 Offices
- Jefferson County11 Offices
- Jersey County6 Offices
- Jo Daviess County10 Offices
- Johnson County9 Offices
- Kane County24 Offices
- Kankakee County16 Offices
- Kendall County6 Offices
- Knox County16 Offices
- Lake County29 Offices
- LaSalle County28 Offices
- Lawrence County4 Offices
- Lee County15 Offices
- Livingston County15 Offices
- Logan County14 Offices
- Macon County14 Offices
- Macoupin County21 Offices
- Madison County30 Offices
- Marion County11 Offices
- Marshall County8 Offices
- Mason County10 Offices
- Massac County3 Offices
- McDonough County10 Offices
- McHenry County17 Offices
- McLean County24 Offices
- Menard County5 Offices
- Mercer County9 Offices
- Monroe County7 Offices
- Montgomery County16 Offices
- Morgan County9 Offices
- Moultrie County4 Offices
- Ogle County15 Offices
- Peoria County18 Offices
- Perry County5 Offices
- Piatt County9 Offices
- Pike County14 Offices
- Pope County3 Offices
- Pulaski County9 Offices
- Putnam County8 Offices
- Randolph County12 Offices
- Richland County6 Offices
- Rock Island County20 Offices
- Saline County7 Offices
- Sangamon County22 Offices
- Schuyler County4 Offices
- Scott County4 Offices
- Shelby County12 Offices
- St. Clair County23 Offices
- Stark County6 Offices
- Stephenson County14 Offices
- Tazewell County14 Offices
- Union County7 Offices
- Vermilion County22 Offices
- Wabash County4 Offices
- Warren County8 Offices
- Washington County10 Offices
- Wayne County9 Offices
- White County9 Offices
- Whiteside County12 Offices
- Will County18 Offices
- Williamson County12 Offices
- Winnebago County15 Offices
- Woodford County11 Offices