CH29 Hoylake Postcode district CH29: 1 named streets and 20 live postcodes, in Wirral. Streets The Quadrant, Hoylake Postcodes CH29 9BJ CH29 9DY CH29 9EF CH29 9ET CH29 9EZ CH29 9FG CH29 9FR CH29 9FS CH29 9FX CH29 9FY CH29 9GB CH29 9GL CH29 9GP CH29 9GR CH29 9GW CH29 9GY CH29 9HB CH29 9HE CH29 9HF CH29 9HG Source: ONS Postcode Directory (live postcodes only) and OS Open Linked Identifiers for the streets.