United States Senate – DEM Hold
Russell B. Long (D-inc) – 318,838 – 75.57%
Taylor Walters O’Hearn (R) – 103,066 – 24.43%
Total Votes – 421,904 – 100.00%
United States House of Representatives – District 1 – DEM Hold
F. Edward Hébert (D-inc) – 57,326 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Hale Boggs (D-inc) – 57,395 – 67.23%
David C. Treen (R) – 27,971 – 32.77%
Total Votes – 85,366 – 100.00%
United States House of Representatives – District 3 – DEM Hold
Edwin E. Willis (D-inc) – 26,170 – 100.00%
United States House of Representatives – District 4 – DEM Hold
Joe Waggonner (D-inc) – 29,754 – 100.00%
United States House of Representatives – District 5 – DEM Hold
Otto E. Passman (D-inc) – 24,609 – 100.00%
United States House of Representatives – District 6 – DEM Hold
James H. Morrison (D-inc) – 48,894 – 100.00%
United States House of Representatives – District 7 – DEM Hold
T. Ashton Thompson (D-inc) – 33,983 – 100.00%
United States House of Representatives – District 8 – DEM Hold
Gillis William Long (D) – 25,682 – 64.00%
Jack W. Lewis (R) – 14,448 – 36.00%
Total Votes – 40,130 – 100.00%