DN37 postcode district: Grimsby and around

DN37 is a postcode district in England, with 674 postcodes in use in 4 sectors. It has postcodes in Grimsby, Waltham, Laceby and 1 more place. It is split between 4 councils: North East Lincolnshire (631 postcodes), West Lindsey (40), East Lindsey (2) and 1 other. 42 of its 674 postcodes are in Lincolnshire. ONS lists no county for the other 632.

Postcodes in use
674
Sectors
4
Councils
4 councils
Places
4 places

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

Every postcode in DN37, by flood risk

Map of every postcode in DN37, by flood risk Of the 674 postcodes in DN37 that ONS places, 9 have a home or business at high risk, 22 are at medium risk at worst, 50 are at low risk at worst, 54 are at very low risk only and 539 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Grimsby, Waltham, Caistor, Laceby, Healing, Keelby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1173A46A16A1084 DN37 0AA: not on the flood risk listDN37 0AB: not on the flood risk listDN37 0AE: not on the flood risk listDN37 0AF: not on the flood risk listDN37 0AG: not on the flood risk listDN37 0AH: not on the flood risk listDN37 0AL: not on the flood risk listDN37 0AN: not on the flood risk listDN37 0AR: not on the flood risk listDN37 0AS: not on the flood risk listDN37 0AT: not on the flood risk listDN37 0AU: not on the flood risk listDN37 0AW: not on the flood risk listDN37 0AX: not on the flood risk listDN37 0AY: not on the flood risk listDN37 0AZ: not on the flood risk listDN37 0BA: not on the flood risk listDN37 0BD: not on the flood risk listDN37 0BE: not on the flood risk listDN37 0BF: not on the flood risk listDN37 0BJ: not on the flood risk listDN37 0BL: not on the flood risk listDN37 0BN: not on the flood risk listDN37 0BQ: not on the flood risk listDN37 0BS: not on the flood risk listDN37 0BU: not on the flood risk listDN37 0BW: not on the flood risk listDN37 0BX: not on the flood risk listDN37 0BZ: not on the flood risk listDN37 0DB: not on the flood risk listDN37 0DE: not on the flood risk listDN37 0DF: not on the flood risk listDN37 0DG: not on the flood risk listDN37 0DJ: not on the flood risk listDN37 0DN: not on the flood risk listDN37 0DQ: not on the flood risk listDN37 0DR: not on the flood risk listDN37 0DS: not on the flood risk listDN37 0DT: not on the flood risk listDN37 0DY: not on the flood risk listDN37 0EH: not on the flood risk listDN37 0EJ: not on the flood risk listDN37 0EN: not on the flood risk listDN37 0EQ: not on the flood risk listDN37 0ES: not on the flood risk listDN37 0ET: not on the flood risk listDN37 0EW: not on the flood risk listDN37 0EX: not on the flood risk listDN37 0FA: not on the flood risk listDN37 0FB: not on the flood risk listDN37 0FD: not on the flood risk listDN37 0FE: not on the flood risk listDN37 0FF: not on the flood risk listDN37 0FG: not on the flood risk listDN37 0FH: not on the flood risk listDN37 0FN: not on the flood risk listDN37 0FP: not on the flood risk listDN37 0GY: not on the flood risk listDN37 0GZ: not on the flood risk listDN37 0HG: not on the flood risk listDN37 0HH: not on the flood risk listDN37 0HJ: not on the flood risk listDN37 0HP: not on the flood risk listDN37 0HS: not on the flood risk listDN37 0HX: not on the flood risk listDN37 0HZ: not on the flood risk listDN37 0JA: not on the flood risk listDN37 0JE: not on the flood risk listDN37 0JG: not on the flood risk listDN37 0JL: not on the flood risk listDN37 0JN: not on the flood risk listDN37 0JS: not on the flood risk listDN37 0JU: not on the flood risk listDN37 0JZ: not on the flood risk listDN37 0LA: not on the flood risk listDN37 0LB: not on the flood risk listDN37 0LE: not on the flood risk listDN37 0LF: not on the flood risk listDN37 0LJ: not on the flood risk listDN37 0LN: not on the flood risk listDN37 0LU: not on the flood risk listDN37 0ND: not on the flood risk listDN37 0NE: not on the flood risk listDN37 0NF: not on the flood risk listDN37 0NG: not on the flood risk listDN37 0NL: not on the flood risk listDN37 0NP: not on the flood risk listDN37 0NU: not on the flood risk listDN37 0NY: not on the flood risk listDN37 0NZ: not on the flood risk listDN37 0PB: not on the flood risk listDN37 0PF: not on the flood risk listDN37 0PJ: not on the flood risk listDN37 0PN: not on the flood risk listDN37 0PS: not on the flood risk listDN37 0PT: not on the flood risk listDN37 0PU: not on the flood risk listDN37 0PW: not on the flood risk listDN37 0PZ: not on the flood risk listDN37 0QF: not on the flood risk listDN37 0QP: not on the flood risk listDN37 0QS: not on the flood risk listDN37 0QT: not on the flood risk listDN37 0QU: not on the flood risk listDN37 0QX: not on the flood risk listDN37 0RG: not on the flood risk listDN37 0RQ: not on the flood risk listDN37 0RT: not on the flood risk listDN37 0RU: not on the flood risk listDN37 0RW: not on the flood risk listDN37 0RX: not on the flood risk listDN37 0RY: not on the flood risk listDN37 0SH: not on the flood risk listDN37 0SP: not on the flood risk listDN37 0ST: not on the flood risk listDN37 0SU: not on the flood risk listDN37 0SW: not on the flood risk listDN37 0SY: not on the flood risk listDN37 0SZ: not on the flood risk listDN37 0TA: not on the flood risk listDN37 0TJ: not on the flood risk listDN37 0TL: not on the flood risk listDN37 0TN: not on the flood risk listDN37 0TP: not on the flood risk listDN37 0TR: not on the flood risk listDN37 0TW: not on the flood risk listDN37 0UA: not on the flood risk listDN37 0UE: not on the flood risk listDN37 0UH: not on the flood risk listDN37 0UJ: not on the flood risk listDN37 0UN: not on the flood risk listDN37 0UR: not on the flood risk listDN37 0UX: not on the flood risk listDN37 0UZ: not on the flood risk listDN37 0XE: not on the flood risk listDN37 0XH: not on the flood risk listDN37 0XL: not on the flood risk listDN37 0XQ: not on the flood risk listDN37 0XR: not on the flood risk listDN37 0XS: not on the flood risk listDN37 0YB: not on the flood risk listDN37 0YE: not on the flood risk listDN37 0YJ: not on the flood risk listDN37 0YP: not on the flood risk listDN37 0ZA: not on the flood risk listDN37 0ZB: not on the flood risk listDN37 7AA: not on the flood risk listDN37 7AB: not on the flood risk listDN37 7AE: not on the flood risk listDN37 7AG: not on the flood risk listDN37 7AH: not on the flood risk listDN37 7AL: not on the flood risk listDN37 7AP: not on the flood risk listDN37 7AS: not on the flood risk listDN37 7AT: not on the flood risk listDN37 7AU: not on the flood risk listDN37 7AX: not on the flood risk listDN37 7AZ: not on the flood risk listDN37 7BA: not on the flood risk listDN37 7BF: not on the flood risk listDN37 7BH: not on the flood risk listDN37 7BJ: not on the flood risk listDN37 7BT: not on the flood risk listDN37 7BW: not on the flood risk listDN37 7BY: not on the flood risk listDN37 7DB: not on the flood risk listDN37 7DF: not on the flood risk listDN37 7DH: not on the flood risk listDN37 7DP: not on the flood risk listDN37 7DR: not on the flood risk listDN37 7DS: not on the flood risk listDN37 7DU: not on the flood risk listDN37 7DW: not on the flood risk listDN37 7DX: not on the flood risk listDN37 7DY: not on the flood risk listDN37 7DZ: not on the flood risk listDN37 7EA: not on the flood risk listDN37 7ED: not on the flood risk listDN37 7EE: not on the flood risk listDN37 7EG: not on the flood risk listDN37 7EH: not on the flood risk listDN37 7EJ: not on the flood risk listDN37 7EL: not on the flood risk listDN37 7EN: not on the flood risk listDN37 7ER: not on the flood risk listDN37 7ET: not on the flood risk listDN37 7EU: not on the flood risk listDN37 7EY: not on the flood risk listDN37 7EZ: not on the flood risk listDN37 7FA: not on the flood risk listDN37 7FP: not on the flood risk listDN37 7HA: not on the flood risk listDN37 7HB: not on the flood risk listDN37 7HD: not on the flood risk listDN37 7HJ: not on the flood risk listDN37 7HW: not on the flood risk listDN37 7JB: not on the flood risk listDN37 7JE: not on the flood risk listDN37 7JF: not on the flood risk listDN37 7JG: not on the flood risk listDN37 7JL: not on the flood risk listDN37 7JP: not on the flood risk listDN37 7JR: not on the flood risk listDN37 7JS: not on the flood risk listDN37 7JT: not on the flood risk listDN37 7JU: not on the flood risk listDN37 7JW: not on the flood risk listDN37 7JX: not on the flood risk listDN37 7JY: not on the flood risk listDN37 7JZ: not on the flood risk listDN37 7LB: not on the flood risk listDN37 7LE: not on the flood risk listDN37 7LF: not on the flood risk listDN37 7LG: not on the flood risk listDN37 7LH: not on the flood risk listDN37 7LJ: not on the flood risk listDN37 7LL: not on the flood risk listDN37 7LN: not on the flood risk listDN37 7LQ: not on the flood risk listDN37 7LW: not on the flood risk listDN37 7SQ: not on the flood risk listDN37 7SU: not on the flood risk listDN37 7WA: not on the flood risk listDN37 8BF: not on the flood risk listDN37 8JL: not on the flood risk listDN37 8JN: not on the flood risk listDN37 8JS: not on the flood risk listDN37 8JT: not on the flood risk listDN37 8JU: not on the flood risk listDN37 8JY: not on the flood risk listDN37 8JZ: not on the flood risk listDN37 8LB: not on the flood risk listDN37 8LH: not on the flood risk listDN37 8LJ: not on the flood risk listDN37 8LL: not on the flood risk listDN37 8LQ: not on the flood risk listDN37 8LW: not on the flood risk listDN37 8LY: not on the flood risk listDN37 8LZ: not on the flood risk listDN37 8NA: not on the flood risk listDN37 8NE: not on the flood risk listDN37 8NF: not on the flood risk listDN37 8NG: not on the flood risk listDN37 8NH: not on the flood risk listDN37 8NJ: not on the flood risk listDN37 8NN: not on the flood risk listDN37 8NP: not on the flood risk listDN37 8NQ: not on the flood risk listDN37 8NR: not on the flood risk listDN37 8NS: not on the flood risk listDN37 8NT: not on the flood risk listDN37 8NU: not on the flood risk listDN37 8NW: not on the flood risk listDN37 8NX: not on the flood risk listDN37 9BY: not on the flood risk listDN37 9BZ: not on the flood risk listDN37 9EA: not on the flood risk listDN37 9ED: not on the flood risk listDN37 9EF: not on the flood risk listDN37 9EG: not on the flood risk listDN37 9EH: not on the flood risk listDN37 9JH: not on the flood risk listDN37 9JL: not on the flood risk listDN37 9NG: not on the flood risk listDN37 9NJ: not on the flood risk listDN37 9NP: not on the flood risk listDN37 9NR: not on the flood risk listDN37 9NT: not on the flood risk listDN37 9NU: not on the flood risk listDN37 9NX: not on the flood risk listDN37 9PA: not on the flood risk listDN37 9PB: not on the flood risk listDN37 9PE: not on the flood risk listDN37 9PG: not on the flood risk listDN37 9PL: not on the flood risk listDN37 9PQ: not on the flood risk listDN37 9PR: not on the flood risk listDN37 9PS: not on the flood risk listDN37 9QA: not on the flood risk listDN37 9QP: not on the flood risk listDN37 9QQ: not on the flood risk listDN37 9QS: not on the flood risk listDN37 9QY: not on the flood risk listDN37 9RA: not on the flood risk listDN37 9RD: not on the flood risk listDN37 9RE: not on the flood risk listDN37 9RJ: not on the flood risk listDN37 9RL: not on the flood risk listDN37 9RP: not on the flood risk listDN37 9RR: not on the flood risk listDN37 9RS: not on the flood risk listDN37 9RW: not on the flood risk listDN37 9SB: not on the flood risk listDN37 9SD: not on the flood risk listDN37 9SG: not on the flood risk listDN37 9SH: not on the flood risk listDN37 9AP: very low flood risk onlyDN37 9DZ: very low flood risk onlyDN37 9AW: very low flood risk onlyDN37 9AX: very low flood risk onlyDN37 9AZ: very low flood risk onlyDN37 9DP: very low flood risk onlyDN37 9DT: very low flood risk onlyDN37 9DU: very low flood risk onlyDN37 9EP: very low flood risk onlyDN37 9HG: very low flood risk onlyDN37 9HP: very low flood risk onlyDN37 9HR: very low flood risk onlyDN37 9HS: very low flood risk onlyDN37 9JE: very low flood risk onlyDN37 9JG: very low flood risk onlyDN37 9NB: very low flood risk onlyDN37 9NE: very low flood risk onlyDN37 9NF: very low flood risk onlyDN37 9NN: very low flood risk onlyDN37 9NQ: very low flood risk onlyDN37 9NW: very low flood risk onlyDN37 9NZ: very low flood risk onlyDN37 9PH: very low flood risk onlyDN37 9PW: very low flood risk onlyDN37 9PX: very low flood risk onlyDN37 9QB: very low flood risk onlyDN37 9QD: very low flood risk onlyDN37 9QH: very low flood risk onlyDN37 9SZ: very low flood risk onlyDN37 9TG: very low flood risk onlyDN37 0ER: low flood risk at worstDN37 0EY: low flood risk at worstDN37 0HB: low flood risk at worstDN37 0LD: low flood risk at worstDN37 0RF: low flood risk at worstDN37 0RH: low flood risk at worstDN37 0SG: low flood risk at worstDN37 7AN: low flood risk at worstDN37 7LD: low flood risk at worstDN37 9AG: low flood risk at worstDN37 9AH: low flood risk at worstDN37 9AJ: low flood risk at worstDN37 9BN: low flood risk at worstDN37 9FB: low flood risk at worstDN37 9FD: low flood risk at worstDN37 9LG: low flood risk at worstDN37 9JZ: low flood risk at worstDN37 9LB: low flood risk at worstDN37 9LJ: low flood risk at worstDN37 9LX: low flood risk at worstDN37 9ND: low flood risk at worstDN37 9QF: low flood risk at worstDN37 9TW: low flood risk at worstDN37 9UA: low flood risk at worstDN37 0HD: medium flood risk at worstDN37 0RJ: medium flood risk at worstDN37 7AJ: medium flood risk at worstDN37 9AA: medium flood risk at worstDN37 9AD: medium flood risk at worstDN37 9AE: medium flood risk at worstDN37 9BB: medium flood risk at worstDN37 9EJ: medium flood risk at worstDN37 9HB: medium flood risk at worstDN37 9HD: medium flood risk at worstDN37 9QE: medium flood risk at worstDN37 9QT: medium flood risk at worstDN37 9QU: medium flood risk at worstDN37 9QW: medium flood risk at worstDN37 9TZ: medium flood risk at worstDN37 0QN: high flood riskDN37 0SL: high flood riskDN37 0SR: high flood riskDN37 7AW: high flood riskDN37 7EF: high flood riskDN37 9TJ: high flood riskDN37 9TL: high flood riskDN37 9TT: high flood riskDN37 9TU: high flood risk GrimsbyWalthamCaistorLacebyHealingKeelby 9 postcodes at high or medium risk, outlined: this goes to DN37 9AA, the one with most homes and businesses at high risk9 postcodes at high or medium risk Map of every postcode in DN37, by flood risk Of the 674 postcodes in DN37 that ONS places, 9 have a home or business at high risk, 22 are at medium risk at worst, 50 are at low risk at worst, 54 are at very low risk only and 539 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Grimsby, Waltham, Caistor, Laceby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. A1173 GrimsbyWalthamCaistorLaceby
  • A home or business at high risk: 9
  • At medium risk at worst: 22
  • At low risk at worst: 50
  • At very low risk only: 54
  • Not on the at-risk list: 539
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 674 postcodes in DN37 that ONS places, 9 have a home or business at high risk, 22 are at medium risk at worst, 50 are at low risk at worst, 54 are at very low risk only and 539 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 160 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 53.5391, longitude -0.1377. 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

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

DN37 9TT57 at high riskDN37 9TJ12 at high riskDN37 9TL9 at high riskDN37 0SL9 at high riskDN37 0QN8 at high riskDN37 7AW3 at high riskDN37 7EF2 at high riskDN37 9TU1 at high riskDN37 0SR1 at high risk

Where the postcodes at high or medium risk lie together

  • 9 postcodes at high or medium risk, outlined on the map. DN37 9AA, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. DN37 9HE, is the one with most homes and businesses at high risk.

What broadband can you get in DN37?

Ofcom reports on 662 of the 674 postcodes in DN37. At 426 of them every home and business can get gigabit broadband, and at 24 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit426 of 662
Postcodes where every home can get superfast555 of 662
Postcodes where some cannot get decent broadband24 of 662

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 DN37 at risk of flooding?

135 of the 674 postcodes in DN37 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 263 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 135 of 674 postcodes High: 102Medium: 161Low: 830Very low: 899

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 DN37?

Homes in DN37 sold for a typical £206,000 in the 12 months to August 2026, across 249 sales, down 1.4% on the 12 months before, HM Land Registry's figures show.

£206,000 typical price, the 12 months to August 2026
12 months to August 2025
£209,000
12 months to August 2026
£206,000

▼ down 1.4% on the 12 months before

Detached£313,750 115 sales
Semi-detached£182,000 93 sales
Terraced£130,000 39 sales
Flat or maisonette 2 sales, too few to price

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 DN37

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

DN37 0282 postcodesDN37 7136 postcodesDN37 833 postcodesDN37 9223 postcodes
UK postcode format explained

Places in DN37

Towns and villages with postcodes in DN37, and how many each has here.

Grimsby postcodes,224Waltham postcodes,201Laceby postcodes,97Holton le Clay postcodes,2

Who covers DN37

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

  • Brigg and Immingham417
  • Great Grimsby and Cleethorpes215
  • Gainsborough40
  • Louth and Horncastle2

Police force areas

  • Humberside632
  • Lincolnshire42

Next to DN37

DN36 postcode district DN38 postcode district All DN districts Grimsby postcodes

"Next to" is by number: the districts before and after DN37 in the DN area.

Check a postcode

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