1984Final results
1984 election for Missouri House District 21
Missouri House of Representatives · Missouri
Joan T. Tobin (R) won with 60.3% of the vote, defeating Gerald Birnbaum (D) by 20.5 points.
Joan T. TobinRepublican · winner
60.3%7,772
Gerald BirnbaumDemocrat
39.7%5,123
12,895 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET