United States Senate – DEM Hold
Allen J. Ellender (D-inc) – 330,115 – 100.00%
Maurice Eugene Clark (I) – 9 – 0.00%
Total Votes – 330,124 – 100.00%
United States Senate (Special) – DEM Hold
Russell B. Long (D) – 306,336 – 74.96%
Clem S. Clarke (R) – 102,331 – 25.04%
Total Votes – 408,667 – 100.00%
United States House of Representatives – District 1 – DEM Hold
F. Edward Hébert (D-inc) – 36,748 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Hale Boggs (D-inc) – 61,316 – 100.00%
United States House of Representatives – District 3 – DEM Hold
Edwin E. Willis (D) – 26,587 – 66.59%
J. Paulin Duhe (R) – 13,337 – 33.41%
Total Votes – 39,924 – 100.00%
United States House of Representatives – District 4 – DEM Hold
Overton Brooks (D-inc) – 32,045 – 100.00%
United States House of Representatives – District 5 – DEM Hold
Otto E. Passman (D-inc) – 34,362 – 100.00%
United States House of Representatives – District 6 – DEM Hold
James H. Morrison (D-inc) – 47,515 – 100.00%
United States House of Representatives – District 7 – DEM Hold
Henry D. Larcade, Jr. (D-inc) – 36,053 – 100.00%
United States House of Representatives – District 8 – DEM Hold
A. Leonard Allen (D-inc) – 33,613 – 100.00%