2018Final results
2018 election for Oklahoma House District 40
Oklahoma House of Representatives · Oklahoma
Chad Caldwell (R) won with 59.7% of the vote, defeating Norman Grey (D) by 19.4 points.
Chad CaldwellRepublican · winner · incumbent
59.7%5,528
Norman GreyDemocrat
40.3%3,730
9,258 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET