L31 postcode district: Maghull and around

L31 is a postcode district in England, with 793 postcodes in use in 10 sectors. It has postcodes in Maghull, Lydiate and Kirkby. It is split between 3 councils: Sefton (775 postcodes), West Lancashire (12) and Knowsley (6). 12 of its 793 postcodes are in Lancashire. ONS lists no county for the other 781.

Postcodes in use: 793
Sectors: 10
Councils: 3 councils
Places: 3 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in L31, and which are new since 2020

New since 2020: 52
In use before 2020: 741
Outline: where 5 or more new postcodes since 2020 lie together

Of the 793 postcodes in L31 that ONS places, 52 are new since 2020 and 741 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 53.5131, longitude -2.9371. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

L31 1GXJuly 2026 L31 0YWJune 2026 L31 5WWJune 2026 L31 1GDApril 2026 L31 1LZMarch 2026

Where the new postcodes lie together

20 new postcodes since 2020, outlined on the map. L31 1GX, is the newest of them.
6 new postcodes since 2020, outlined on the map. L31 0YW, is the newest of them.
6 new postcodes since 2020, outlined on the map. L31 1LZ, is the newest of them.
5 new postcodes since 2020, outlined on the map. L31 2PP, is the newest of them.

What broadband can you get in L31?

Ofcom reports on 766 of the 793 postcodes in L31. At 697 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit697 of 766

Postcodes where every home can get superfast736 of 766

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is L31 at risk of flooding?

59 of the 793 postcodes in L31 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 211 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 59 of 793 postcodes High: 44Medium: 167Low: 344Very low: 104

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in L31?

Homes in L31 sold for a typical £251,000 in the 12 months to August 2026, across 341 sales, up 1% on the 12 months before, HM Land Registry's figures show.

£251,000 typical price, the 12 months to August 2026

£248,500 12 months to August 2025

▲ up 1% on the 12 months before

Detached £319,400 72 sales
Semi-detached £246,250 207 sales
Terraced £230,000 36 sales
Flat or maisonette £130,000 26 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it