1972Final results
1972 election for Missouri House District 6
Missouri House of Representatives · Missouri
Hardin Cox (D) won with 61.0% of the vote, defeating John C. Costello (R) by 21.9 points.
Hardin CoxDemocrat · winner · incumbent
61.0%8,768
John C. CostelloRepublican
39.0%5,612
14,380 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 1972
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET