L30 in Sefton
91 postcode sectors mapped mainly to Sefton. Choose a district or browse the guides below. These are postcode sectors, not named neighbourhood boundaries.
Postcode districts
L30 guides
10 sectors
Authority grouping uses mapped sector boundaries from the Office for National Statistics, December 2025. It measures boundary area, not the number of addresses or residents. Guide names describe a place near the approximate sector centre.