Map showing the all top-tier administrative subdivisions of England (shire counties, metropolitan boroughs, London boroughs and unitary authority areas) from 1 April 2020 to 31 March 2021.
Equirectangular map projection on WGS 84 datum, with N/S stretched 170%  
Geographic limits: 

West: 6.75W
East: 2.0E
North: 56.0N
South: 49.75NChanges since the 2019 version:

New unitary authority area:
BuckinghamshireKey  Metropolitan borough
  Two-tier non-metropolitan county (sometimes called a "shire county")
  Unitary authority area (type of non-metropolitan county)
  London borough or City of London
  Ceremonial county boundary
  Administrative boundary
This file was derived from:

 English administrative divisions 2009.svg: 
English districts 2010.svg:
English administrative divisions 2009.svg: Nilfanion and Dr Greg
English districts 2010.svg: Nilfanion
derivative work: Dr Greg