Rauner appeared to outpace Pritzker by a margin of 13.5 percent on Tuesday in the county.
In comparison, the 2014 winner, Republican Bruce Rauner, won by a margin of 34.8 percent in that jurisdiction, beating Democrat Pat Quinn, who received 29,116 votes to Rauner's 61,827.
2018 Governor race results vs. 2014
Precinct/ County/ Township
GOP 2018
Votes/%
Dem. 2018
Votes/%
GOP 2014
Votes/%
Dem. 2014
Votes/%
McHenry County
Bruce Rauner
49,403/ 53.48%
JB Pritzker
36,909/ 39.95%
Bruce Rauner
61,827/ 65.8%
Pat Quinn
29,116/ 31%