Ward Map – 2 February 1869

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This is how the city’s boundaries were during the Great Fire and when the 1870 Census was taken. Chicago’s population was at 298,977.

Ward
 Division
North
South
East
West
1st
South
Chicago River
Monroe St
Lake Michigan
Chicago River
2nd
 South
Monroe St
Harrison St
Lake Michigan
Chicago River
3rd
South
Harrison St
16th St
Lake Michigan
Chicago River
4th
 South
16th St
26th St
Lake Michigan
Clark St
5th
 South
Egan Ave
26th St
Lake Michigan
Clark St
6th
West
16th St
Egan Ave
Western Ave
Chicago River
7th
 West
16th St
Chicago River
I & M Canal
40th Avenue
8th
 West
12th St
16th St
Chicago River
40th Avenue
9th
 West
Van Buren St
12th St
Chicago River
Loomis St
10th
 West
Van Buren St
Van Buren St
Chicago River
Curtis St
11th
 West
Ohio St
Randolph St
Chicago River
Curtis St
12th
 West
Ohio St
Van Buren St
Chicago River
Western Ave
13th
North
Fullerton Ave
North Ave
Lake Michigan
Chicago River
14th
 West
Chcago Ave
Lake St
Reuben St
40th Avenue
15th
 North
Division St
Huron St
Lake Michigan
Chicago River
16th
 North
Huron St
Chicago River
Lake Michigan
Chicago River
17th North North Ave Division St Lake Michigan Chicago River
18th North Division St Chicago Ave Franklin St Chicago River
19th North Division St Chicago Ave Lake Michigan Franklin St
20th North Chicago Ave Chicago River Lake Michigan Franklin St
Notes: Bold indicates city limits. 40th Avenue has been changed in later years to Crawford Avenue and is currently Pulaski Road. Egan Ave (39th St) is now Pershing. Reuben Street is Ashland Avenue today.