2019Final results
2019 election for Louisiana House District 78
Louisiana House of Representatives · Louisiana
John Illg (R) won with 58.5% of the vote, defeating William Wallis (R) by 17.1 points.
John IllgRepublican · winner
58.5%7,436
William WallisRepublican
41.5%5,266
12,702 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2019
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET