As reported by the Chicago Board of Elections.

Unofficial Early Voting – Day by Day – Citywide data through 7:15 p.m., March 7, 2016
Ballots       Date      Sites Open

190Feb 171 site
194Feb 181 site
194Feb 191 site
48Feb 201 site
36Feb 211 site
192Feb 221 site
192Feb 231 site
159Feb 241 site
173Feb 251 site
198Feb 261 site
114Feb 271 site
65Feb 281 site
9,477Feb 2951 sites
6,081Mar 151 sites
6,616Mar 251 sites
5,226Mar 351 sites
7,040Mar 451 sites
9,910Mar 551 sites
1,413Mar 614 sites
8,849Mar 751 sites
 Mar 851 sites
 Mar 951 sites
 Mar 1051 sites
 Mar 1151 sites
 Mar 1251 sites
 Mar 1314 sites
 Mar 1414 sites
56,367 Total
 

Unofficial Cumulative: Feb. 17, 2016 through March 7, 2016 – As of 7:15 p.m.
Ward      Early Voting Ballots
 

1994
2922
31,591
41,687
51,309
61,364
71,466
81,542
91,446
10994
111,562
12666
132,743
14568
15333
16601
171,081
181,606
192,420
20759
211,469
22421
231,250
24562
25721
26623
27819
28749
291,154
30538
31474
32898
33831
341,787
35487
36564
37942
381,157
391,277
401,138
412,024
421,131
431,217
441,152
451,164
461,043
471,567
481,448
491,155
50951
Total56,367