Postal codes used in the United Kingdom, British Overseas Territories and Crown dependencies are known as postcodes (originally, postal codes). They are alphanumeric and were adopted nationally between 11 October 1959 and 1974, having been devised by the General Post Office ().
The 2015 United Kingdom general election was held on Thursday, 7 May 2015 to elect 650 members to the House of Commons. It was the first and, as of 2021, the only general election at the end of a fixed-term Parliament. Local elections took place in most areas on the same day.