Pritzker appeared to outpace Rauner by a margin of 5 percent on Tuesday in the county.
In comparison, the 2014 winner, Republican Bruce Rauner, won by a margin of 7.8 percent in that jurisdiction, beating Democrat Pat Quinn, who received 33,474 votes to Rauner's 39,438.
2018 Governor race results vs. 2014
Precinct/ County/ Township
GOP 2018
Votes/%
Dem. 2018
Votes/%
GOP 2014
Votes/%
Dem. 2014
Votes/%
St. Clair County
Bruce Rauner
40,000/ 44%
JB Pritzker
45,067/ 49%
Bruce Rauner
39,438/ 51.7%
Pat Quinn
33,474/ 43.9%