United States House of Representatives elections, 1942 Louisiana Louisiana

| District | Incumbent | Party | First_elected | Result_ | Candidates |
|---|---|---|---|---|---|
| Louisiana 1 | F. Edward Hebert | Democratic | 1940 | Re-elected | F. Edward Hebert (D) Unopposed |
| Louisiana 2 | Hale Boggs | Democratic | 1940 | Lost renomination Democratic hold | Paul H. Maloney (D) Unopposed |
| Louisiana 3 | James R. Domengeaux | Democratic | 1940 | Re-elected | James R. Domengeaux (D) Unopposed |
| Louisiana 4 | Overton Brooks | Democratic | 1936 | Re-elected | Overton Brooks (D) Unopposed |
| Louisiana 5 | Newt V. Mills | Democratic | 1936 | Lost renomination Democratic hold | Charles E. McKenzie (D) Unopposed |
| Louisiana 6 | Jared Y. Sanders, Jr. | Democratic | 1940 | Lost renomination Democratic hold | James H. Morrison (D) Unopposed |
| Louisiana 7 | Vance Plauche | Democratic | 1940 | Retired Democratic hold | Henry D. Larcade, Jr. (D) Unopposed |