Was Croydon in Surrey?

Croydon, outer borough of London, England, on the southern edge of the metropolis. It is in the historic county of Surrey.

When did Croydon leave Surrey?

In 1965 (under the terms of the London Government Act 1963) the County Borough of Croydon was abolished and the area was transferred to Greater London and combined with the Coulsdon and Purley Urban District to form the London Borough of Croydon.

What area does Croydon come under?

However, there has been long-standing confusion over where the border between Croydon and Surrey actually lies, ever since the Surrey border changed back in 1965. Until this change, which aligned Croydon with Coulsdon and Purley to become the London Borough of Croydon, Croydon was firmly part of Surrey.