In 1965, with the formation of Greater London, the parishes of Harrow became a London Borough, but Ruislip was absorbed into the London Borough of Hillingdon. Consequently, Harrow Registration District was reduced in size both geographically and in terms of population by roughly 25 per cent.
The boundaries of Harrow were further redrawn in 1993. See the UKBMD review of Harrow Registration District for more infomation.
Created | 1 Oct 1947 (out of Hendon, Uxbridge, and Brentford Registration Districts)
| Abolished | Continues to exist since 1965 within Greater London
| Sub-districts | Harrow
| Ruislip
| GRO volumes | 5F (1947-65)
| 5B (1965-74)
| 12 (1974-92)
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