LN12 postcode district: Mablethorpe and around, Lincolnshire

LN12 is a postcode district in Lincolnshire, with 437 postcodes in use in 3 sectors. It has postcodes in Mablethorpe, Sutton on Sea and Trusthorpe and Alford. Its council is East Lindsey.

Postcodes in use
437
Sectors
3
Council
East Lindsey
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 LN12, by flood risk

Map of every postcode in LN12, by flood risk Of the 437 postcodes in LN12 that ONS places, 61 have a home or business at high risk, 122 are at medium risk at worst, 249 are at low risk at worst, 3 are at very low risk only and 2 are not on the Environment Agency's at-risk list. 5 groups of postcodes at high or medium risk are outlined: 70 postcodes at high or medium risk; 17 postcodes at high or medium risk; 15 postcodes at high or medium risk; 8 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Mablethorpe, Sutton on Sea and Trusthorpe, Alford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1111A1104A52 LN12 9AN: not on the flood risk listLN12 1AH: very low flood risk onlyLN12 2RR: very low flood risk onlyLN12 2RX: very low flood risk onlyLN12 1AA: low flood risk at worstLN12 1AB: low flood risk at worstLN12 1AD: low flood risk at worstLN12 1FD: low flood risk at worstLN12 1AS: low flood risk at worstLN12 1AX: low flood risk at worstLN12 1BE: low flood risk at worstLN12 1BG: low flood risk at worstLN12 1BJ: low flood risk at worstLN12 1BL: low flood risk at worstLN12 1BP: low flood risk at worstLN12 1BQ: low flood risk at worstLN12 1BS: low flood risk at worstLN12 1BT: low flood risk at worstLN12 1BU: low flood risk at worstLN12 1BW: low flood risk at worstLN12 1BY: low flood risk at worstLN12 1DB: low flood risk at worstLN12 1DG: low flood risk at worstLN12 1DP: low flood risk at worstLN12 1EH: low flood risk at worstLN12 1EJ: low flood risk at worstLN12 1EL: low flood risk at worstLN12 1EP: low flood risk at worstLN12 1ET: low flood risk at worstLN12 1EU: low flood risk at worstLN12 1EW: low flood risk at worstLN12 1EX: low flood risk at worstLN12 1EY: low flood risk at worstLN12 1EZ: low flood risk at worstLN12 1FB: low flood risk at worstLN12 1FE: low flood risk at worstLN12 1FN: low flood risk at worstLN12 1HB: low flood risk at worstLN12 1HH: low flood risk at worstLN12 1HL: low flood risk at worstLN12 1HN: low flood risk at worstLN12 1HP: low flood risk at worstLN12 1HR: low flood risk at worstLN12 1HT: low flood risk at worstLN12 1HU: low flood risk at worstLN12 1HX: low flood risk at worstLN12 1HY: low flood risk at worstLN12 1JA: low flood risk at worstLN12 1JB: low flood risk at worstLN12 1JD: low flood risk at worstLN12 1JL: low flood risk at worstLN12 1JN: low flood risk at worstLN12 1JS: low flood risk at worstLN12 1JT: low flood risk at worstLN12 1JX: low flood risk at worstLN12 1JY: low flood risk at worstLN12 1LE: low flood risk at worstLN12 1LG: low flood risk at worstLN12 1LH: low flood risk at worstLN12 1LJ: low flood risk at worstLN12 1LL: low flood risk at worstLN12 1LN: low flood risk at worstLN12 1LP: low flood risk at worstLN12 1LR: low flood risk at worstLN12 1LS: low flood risk at worstLN12 1LT: low flood risk at worstLN12 1LW: low flood risk at worstLN12 1LY: low flood risk at worstLN12 1NB: low flood risk at worstLN12 1NF: low flood risk at worstLN12 1NZ: low flood risk at worstLN12 1QG: low flood risk at worstLN12 1QL: low flood risk at worstLN12 1QN: low flood risk at worstLN12 1QP: low flood risk at worstLN12 1QQ: low flood risk at worstLN12 1QR: low flood risk at worstLN12 1QS: low flood risk at worstLN12 1QT: low flood risk at worstLN12 1QW: low flood risk at worstLN12 1RD: low flood risk at worstLN12 1RP: low flood risk at worstLN12 1RQ: low flood risk at worstLN12 1RR: low flood risk at worstLN12 2AA: low flood risk at worstLN12 2AB: low flood risk at worstLN12 2AD: low flood risk at worstLN12 2AP: low flood risk at worstLN12 2AQ: low flood risk at worstLN12 2AW: low flood risk at worstLN12 2BA: low flood risk at worstLN12 2BB: low flood risk at worstLN12 2BD: low flood risk at worstLN12 2BE: low flood risk at worstLN12 2BF: low flood risk at worstLN12 2BH: low flood risk at worstLN12 2BJ: low flood risk at worstLN12 2BN: low flood risk at worstLN12 2BQ: low flood risk at worstLN12 2BT: low flood risk at worstLN12 2BX: low flood risk at worstLN12 2DE: low flood risk at worstLN12 2DG: low flood risk at worstLN12 2DH: low flood risk at worstLN12 2DT: low flood risk at worstLN12 2DU: low flood risk at worstLN12 2DX: low flood risk at worstLN12 2EB: low flood risk at worstLN12 2EE: low flood risk at worstLN12 2EL: low flood risk at worstLN12 2ER: low flood risk at worstLN12 2ES: low flood risk at worstLN12 2FE: low flood risk at worstLN12 2FF: low flood risk at worstLN12 2FG: low flood risk at worstLN12 2FJ: low flood risk at worstLN12 2FR: low flood risk at worstLN12 2GY: low flood risk at worstLN12 2HA: low flood risk at worstLN12 2HF: low flood risk at worstLN12 2HH: low flood risk at worstLN12 2HY: low flood risk at worstLN12 2JW: low flood risk at worstLN12 2LG: low flood risk at worstLN12 2LU: low flood risk at worstLN12 2NA: low flood risk at worstLN12 2NN: low flood risk at worstLN12 2PP: low flood risk at worstLN12 2PS: low flood risk at worstLN12 2QA: low flood risk at worstLN12 2QB: low flood risk at worstLN12 2QD: low flood risk at worstLN12 2QE: low flood risk at worstLN12 2QH: low flood risk at worstLN12 2QL: low flood risk at worstLN12 2QQ: low flood risk at worstLN12 2QU: low flood risk at worstLN12 2QX: low flood risk at worstLN12 2QY: low flood risk at worstLN12 2RD: low flood risk at worstLN12 2RL: low flood risk at worstLN12 2RN: low flood risk at worstLN12 2RP: low flood risk at worstLN12 2RS: low flood risk at worstLN12 2RT: low flood risk at worstLN12 2RU: low flood risk at worstLN12 2RW: low flood risk at worstLN12 2SB: low flood risk at worstLN12 2SE: low flood risk at worstLN12 2SQ: low flood risk at worstLN12 2TA: low flood risk at worstLN12 2TN: low flood risk at worstLN12 2TT: low flood risk at worstLN12 2UB: low flood risk at worstLN12 2UF: low flood risk at worstLN12 2UG: low flood risk at worstLN12 2UT: low flood risk at worstLN12 2UU: low flood risk at worstLN12 2YA: low flood risk at worstLN12 1AL: medium flood risk at worstLN12 1FR: medium flood risk at worstLN12 1LU: medium flood risk at worstLN12 1QF: medium flood risk at worstLN12 2AF: medium flood risk at worstLN12 2AJ: medium flood risk at worstLN12 2AL: medium flood risk at worstLN12 2AN: medium flood risk at worstLN12 2AS: medium flood risk at worstLN12 2AT: medium flood risk at worstLN12 2AU: medium flood risk at worstLN12 2AY: medium flood risk at worstLN12 2BL: medium flood risk at worstLN12 2ED: medium flood risk at worstLN12 2ET: medium flood risk at worstLN12 2EU: medium flood risk at worstLN12 2EY: medium flood risk at worstLN12 2FB: medium flood risk at worstLN12 2FD: medium flood risk at worstLN12 2FH: medium flood risk at worstLN12 2GF: medium flood risk at worstLN12 2GG: medium flood risk at worstLN12 2GR: medium flood risk at worstLN12 2GS: medium flood risk at worstLN12 2GT: medium flood risk at worstLN12 2HD: medium flood risk at worstLN12 2HJ: medium flood risk at worstLN12 2HN: medium flood risk at worstLN12 2HP: medium flood risk at worstLN12 2HR: medium flood risk at worstLN12 2HS: medium flood risk at worstLN12 2HU: medium flood risk at worstLN12 2JA: medium flood risk at worstLN12 2JD: medium flood risk at worstLN12 2JE: medium flood risk at worstLN12 2JG: medium flood risk at worstLN12 2JH: medium flood risk at worstLN12 2JJ: medium flood risk at worstLN12 2JL: medium flood risk at worstLN12 2JN: medium flood risk at worstLN12 2JR: medium flood risk at worstLN12 2JS: medium flood risk at worstLN12 2JT: medium flood risk at worstLN12 2JX: medium flood risk at worstLN12 2JY: medium flood risk at worstLN12 2JZ: medium flood risk at worstLN12 2LA: medium flood risk at worstLN12 2LH: medium flood risk at worstLN12 2LJ: medium flood risk at worstLN12 2LL: medium flood risk at worstLN12 2LN: medium flood risk at worstLN12 2LP: medium flood risk at worstLN12 2LR: medium flood risk at worstLN12 2LW: medium flood risk at worstLN12 2LX: medium flood risk at worstLN12 2LY: medium flood risk at worstLN12 2NB: medium flood risk at worstLN12 2NE: medium flood risk at worstLN12 2NF: medium flood risk at worstLN12 2NH: medium flood risk at worstLN12 2NL: medium flood risk at worstLN12 2NP: medium flood risk at worstLN12 2NQ: medium flood risk at worstLN12 2NR: medium flood risk at worstLN12 2NT: medium flood risk at worstLN12 2NU: medium flood risk at worstLN12 2NW: medium flood risk at worstLN12 2NX: medium flood risk at worstLN12 2PL: medium flood risk at worstLN12 2PN: medium flood risk at worstLN12 2PU: medium flood risk at worstLN12 2PX: medium flood risk at worstLN12 2PY: medium flood risk at worstLN12 2PZ: medium flood risk at worstLN12 2QJ: medium flood risk at worstLN12 2RA: medium flood risk at worstLN12 2RB: medium flood risk at worstLN12 2RE: medium flood risk at worstLN12 2RF: medium flood risk at worstLN12 2RH: medium flood risk at worstLN12 2RQ: medium flood risk at worstLN12 2RY: medium flood risk at worstLN12 2SA: medium flood risk at worstLN12 2SF: medium flood risk at worstLN12 2SH: medium flood risk at worstLN12 2SJ: medium flood risk at worstLN12 2SL: medium flood risk at worstLN12 2SN: medium flood risk at worstLN12 2SR: medium flood risk at worstLN12 2SS: medium flood risk at worstLN12 2ST: medium flood risk at worstLN12 2SU: medium flood risk at worstLN12 2TE: medium flood risk at worstLN12 2TX: medium flood risk at worstLN12 2TY: medium flood risk at worstLN12 2UD: medium flood risk at worstLN12 2UE: medium flood risk at worstLN12 2XA: medium flood risk at worstLN12 1ES: high flood riskLN12 1JH: high flood riskLN12 1NE: high flood riskLN12 1NH: high flood riskLN12 1NJ: high flood riskLN12 1NL: high flood riskLN12 1NN: high flood riskLN12 1NP: high flood riskLN12 1NQ: high flood riskLN12 1NR: high flood riskLN12 1NS: high flood riskLN12 1NT: high flood riskLN12 1NU: high flood riskLN12 1NW: high flood riskLN12 1NX: high flood riskLN12 1PA: high flood riskLN12 1PB: high flood riskLN12 1PD: high flood riskLN12 1PE: high flood riskLN12 1PF: high flood riskLN12 1PG: high flood riskLN12 1PH: high flood riskLN12 1PJ: high flood riskLN12 1PQ: high flood riskLN12 1PR: high flood riskLN12 1PX: high flood riskLN12 1PZ: high flood riskLN12 1QA: high flood riskLN12 1QB: high flood riskLN12 1QD: high flood riskLN12 1QE: high flood riskLN12 1QJ: high flood riskLN12 1RG: high flood riskLN12 2BY: high flood riskLN12 2DA: high flood riskLN12 2DZ: high flood riskLN12 2EA: high flood riskLN12 2EG: high flood riskLN12 2EJ: high flood riskLN12 2FL: high flood riskLN12 2GN: high flood riskLN12 2PA: high flood riskLN12 2PD: high flood riskLN12 2PE: high flood riskLN12 2PF: high flood riskLN12 2PH: high flood riskLN12 2PJ: high flood riskLN12 2PQ: high flood riskLN12 2QR: high flood riskLN12 2QF: high flood riskLN12 2QN: high flood riskLN12 2QP: high flood riskLN12 2QS: high flood riskLN12 2QW: high flood riskLN12 2RJ: high flood riskLN12 2UL: high flood riskLN12 2YB: high flood risk MablethorpeSutton on Sea and TrusthorpeAlford 70 postcodes at high or medium risk, outlined: this goes to LN12 2LJ, the one with most homes and businesses at high risk70 postcodes at high or medium risk17 postcodes at high or medium risk, outlined: this goes to LN12 2RF, the one with most homes and businesses at high risk17 postcodes at high or medium risk15 postcodes at high or medium risk, outlined: this goes to LN12 2PE, the one with most homes and businesses at high risk15 postcodes at high or medium risk8 postcodes at high or medium risk, outlined: this goes to LN12 2ND, the one with most homes and businesses at high risk8 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to LN12 2AS, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in LN12, by flood risk Of the 437 postcodes in LN12 that ONS places, 61 have a home or business at high risk, 122 are at medium risk at worst, 249 are at low risk at worst, 3 are at very low risk only and 2 are not on the Environment Agency's at-risk list. 5 groups of postcodes at high or medium risk are outlined: 70 postcodes at high or medium risk; 17 postcodes at high or medium risk; 15 postcodes at high or medium risk; 8 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Mablethorpe, Alford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1111A52A157 MablethorpeAlford
  • A home or business at high risk: 61
  • At medium risk at worst: 122
  • At low risk at worst: 249
  • At very low risk only: 3
  • Not on the at-risk list: 2
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 437 postcodes in LN12 that ONS places, 61 have a home or business at high risk, 122 are at medium risk at worst, 249 are at low risk at worst, 3 are at very low risk only and 2 are not on the Environment Agency's at-risk list.

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. 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 53.3292, longitude 0.2640. 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; flood risk: Environment Agency, published 6 July 2026; 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 postcodes at high risk

61 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

LN12 1NE525 at high riskLN12 2PH84 at high riskLN12 1NS52 at high riskLN12 1NX52 at high riskLN12 1PD44 at high riskLN12 1NQ41 at high riskLN12 1PJ39 at high riskLN12 1PB32 at high riskLN12 1NR31 at high riskLN12 1PF31 at high riskLN12 2PE29 at high riskLN12 1QB25 at high risk

Where the postcodes at high or medium risk lie together

  • 70 postcodes at high or medium risk, outlined on the map. LN12 2LJ, is the one with most homes and businesses at high risk.
  • 17 postcodes at high or medium risk, outlined on the map. LN12 2RF, is the one with most homes and businesses at high risk.
  • 15 postcodes at high or medium risk, outlined on the map. LN12 2PE, is the one with most homes and businesses at high risk.
  • 8 postcodes at high or medium risk, outlined on the map. LN12 2ND, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. LN12 2AS, is the one with most homes and businesses at high risk.

What broadband can you get in LN12?

Ofcom reports on 436 of the 437 postcodes in LN12. At 175 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit175 of 436
Postcodes where every home can get superfast379 of 436

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 LN12 at risk of flooding?

435 of the 437 postcodes in LN12 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 3,585 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 435 of 437 postcodes High: 1,453Medium: 2,132Low: 9,294Very low: 374

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 LN12?

Homes in LN12 sold for a typical £205,000 in the 12 months to August 2026, across 173 sales, up 2.5% on the 12 months before, HM Land Registry's figures show.

£205,000 typical price, the 12 months to August 2026
12 months to August 2025
£199,950
12 months to August 2026
£205,000

▲ up 2.5% on the 12 months before

Detached£235,000 111 sales
Semi-detached£164,000 42 sales
Terraced£182,500 8 sales
Flat or maisonette£86,000 12 sales

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

Postcodes in LN12

Pick a sector, then a postcode. A sector is the district plus the next digit.

LN12 1166 postcodesLN12 2270 postcodesLN12 91 postcode
UK postcode format explained

Places in LN12

Towns and villages with postcodes in LN12, and how many each has here.

Mablethorpe postcodes,212Sutton on Sea and Trusthorpe postcodes,179Alford postcodes,1

Who covers LN12

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Louth and Horncastle437

Police force areas

  • Lincolnshire437

Next to LN12

LN11 postcode district LN13 postcode district All LN districts Mablethorpe postcodes

"Next to" is by number: the districts before and after LN12 in the LN area.

Check a postcode

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