Margate Birchington was a ward of Margate Municipal District prior to 1973. When the Municipal District was included in the Thanet Borough in 1974, Birchington ward elected 5 councillors to the new Borough at the elections of 1973 and 1976.

1973 Election
1976 Election

The election of 1979 was fought on revised boundaries and Birchington ward had been split between Birchington West

Birchington West

Birchington West ward is a ward of Thanet Borough Council and was created in the boundary changes of 1979, and had previously been part of the Margate Birchington ward....

 and Birchington East

Birchington East

Birchington East ward is a ward of Thanet Borough Council and was created in the boundary changes of 1979, and had previously been part of the Margate Birchington ward....

, each electing two councillors.