Elections to Magherafelt District Council were held on 18 May 1977 on the same day as the other Northern Irish local government elections.

The election used three district electoral areas to elect a total of 15 councillors.

Note: "Votes" are the first preference votes.

1973: 3 x SDLP, 1 x UUP, 1 x Republican Clubs 1977: 2 x SDLP, 2 x UUP, 1 x Republican Clubs 1973-1977 Change: UUP gain from SDLP 1973: 2 x UUP, 1 x SDLP, 1 x Vanguard, 1 x Independent Nationalist 1977: 1 x UUP, 1 x SDLP, 1 x DUP, 1 x UUUP, 1 x Independent Nationalist 1973-1977 Change: DUP and UUUP gain from UUP and Vanguard 1973: 2 x SDLP, 2 x UUP, 1 x United Loyalist 1977: 2 x SDLP, 2 x DUP, 1 x UUP 1973-1977 Change: DUP gain from UUP, United Loyalist joins DUP