The Chicago Board of Elections reports 20,801 Early Voting ballots cast Saturday. A total of 126,589 early voting ballots cast for this Presidential Primary. The previous record for a Presidential Primary was 81,690 in 2008.

Spreadsheet of early voting history by ward from Board of Elections.

UNOFFICIAL Early Voting – Day by Day – Citywide data thru March 12, 2016
Ballots           Date        Sites Open

190 Feb 17 1 site
194 Feb 18 1 site
194 Feb 19 1 site
48 Feb 20 1 site
36 Feb 21 1 site
192 Feb 22 1 site
192 Feb 23 1 site
159 Feb 24 1 site
173 Feb 25 1 site
198 Feb 26 1 site
114 Feb 27 1 site
65 Feb 28 1 site
9,476 Feb 29 51 sites
6,081 Mar 1 51 sites
6,617 Mar 2 51 sites
5,225 Mar 3 51 sites
7,040 Mar 4 51 sites
9,910 Mar 5 51 sites
1,413 Mar 6 14 sites
8,848 Mar 7 51 sites
10,395 Mar 8 51 sites
10,901 Mar 9 54 sites with UIC, CSU, NEIU
11,981 Mar 10 54 sites with UIC, CSU, NEIU
16,146 Mar 11 54 sites with UIC, CSU, NEIU
20,801 Mar 12 51 sites
  Mar 13 14 sites
  Mar 14 14 sites
126,589 Total   

UNOFFICIAL Cumulative: Feb. 17, 2016 thru March 12, 2016
Ward ……Early Voting Ballots

1 2,380
2 2,167
3 3,481
4 3,664
5 3,023
6 3,105
7 3,290
8 3,360
9 3,323
10 2,150
11 3,138
12 1,520
13 4,381
14 1,301
15 839
16 1,435
17 2,339
18 3,684
19 5,119
20 1,742
21 3,237
22 1,017
23 2,548
24 1,453
25 1,681
26 1,518
27 1,948
28 1,836
29 2,718
30 1,305
31 1,173
32 2,343
33 2,133
34 3,963
35 1,261
36 1,416
37 2,191
38 2,505
39 2,998
40 2,802
41 4,208
42 2,487
43 2,754
44 2,677
45 2,712
46 2,481
47 3,433
48 3,230
49 2,803
50 2,317
Total 126,589