The parish of Mullion was originally in the Helston Registration District; there were sub-districts at Breage, Crowan, Helston, St Keverne and Wendron. It is now in the Kerrier Registration District. Parishes in this registration district are: Breage, Crowan, Cury, Germoe, Gunwalloe, Grade, Helston, Landewednack, Manaccan, Mawgan in Meneage, Mullion, Ruan Major, Ruan Minor, St. Anthony in Meneage, St. Keverne, St. Martin in Meneage, Sithney, Wendron.
The address of the Registration Office is: The Willows, Church Street, Helston, TR13 8NJ.
Tel: 01326 562848.