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LN12

Postcode district

Postcode district covering Mablethorpe, Sutton on Sea and Sandilands, in East Lindsey.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an LN12 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 0% of people in LN12 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£195,000
Joint 339th cheapest of 2,235
Worked out by Open Index
Population
13,376
921st least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
0%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
70.0%
UK 87.8%
Ofcom · Jan 2026

How LN12 compares

Each dot is a postcode district. The black line marks the middle one.

LN12Middle
Median sale price13 postcode districts, LN · 2025
Median sale price: every postcode district in LN13 areas from £195,000 to £310,000. The middle area is £230,000. LN12 is £195,000.
£195,000cheapest
Population13 postcode districts, LN · 2021
Population: every postcode district in LN13 areas from 5,894 to 64,923. The middle area is 17,750. LN12 is 13,376.
13,3766th least populated
People in radon Affected Area squares13 postcode districts, LN · 2022
People in radon Affected Area squares: every postcode district in LN13 areas from 0.0% to 98.0%. The middle area is 61.0%. LN12 is 0.0%.
0%fewest people in radon Affected Areas
Gigabit broadband coverage13 postcode districts, LN · Jan 2026
Gigabit broadband coverage: every postcode district in LN13 areas from 36.4% to 92.7%. The middle area is 70.9%. LN12 is 70.0%.
70.0%6th lowest

Is LN12 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LN12 at a rate of 99.3 per 1,000 people.

That compares with 92.2 per 1,000 people across the LN postcode area.

In August 2026 alone, 143 cases of crime and anti-social behaviour were recorded in LN12.

In the 12 months to August 2026, the most common types were violence and sexual offences (548), anti-social behaviour (318) and other crime (193).

A year earlier, the recorded crime rate in LN12 was 82.2 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in LN12, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so LN12 has no single figure. Of its 6 neighbourhoods with a rank:
  • Decile 1 (England’s most deprived 10%): 3 neighbourhoods
  • Decile 2: 2 neighbourhoods
  • Decile 3: 1 neighbourhood

English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

Neighbourhoods in LN12

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
East Lindsey 005A2,330111.9 per 1,000176.0%
East Lindsey 005B1,934167.4 per 1,000175.6%
East Lindsey 005C2,161129.6 per 1,000188.0%
East Lindsey 006A2,01962.9 per 1,000274.3%
East Lindsey 006B2,15662.7 per 1,000374.3%
East Lindsey 006C2,06979.3 per 1,000251.2%

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Middle areas in LN122

Postcode sectors in LN123

Council1

Towns in LN121

Postcode districts next to LN122

More in the LN postcode area2

LN12 in brief

LN12 is a postcode district covering Mablethorpe, Sutton on Sea and Sandilands, in East Lindsey.

About 13,188 people lived in LN12 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £195,000 in 2025 across 221 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 99.3 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in LN12 was £195,000 in 2025.

LN12 had 13,376 usual residents at the census.

About 0% of people in LN12 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In LN12, 70.0% of homes and businesses could get gigabit-capable broadband in January 2026.