LL37 postcode district: Gwynedd

LL37 is a postcode district in Wales, with 40 postcodes in use in 1 sector. Its council is Gwynedd.

Postcodes in use
40
Sectors
1
Council
Gwynedd
Places
None listed

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in LL37, by gigabit broadband

Map of every postcode in LL37, by gigabit broadband Of the 40 postcodes in LL37 that ONS places, 1 have no home or business that can get gigabit, 3 have some that can and 36 can all get it. Places named: Arthog a Llangelynnin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A493 LL37 2JA: gigabit for allLL37 2JB: gigabit for allLL37 2JF: gigabit for allLL37 2JG: gigabit for allLL37 2JH: gigabit for allLL37 2JJ: gigabit for allLL37 2JL: gigabit for allLL37 2JP: gigabit for allLL37 2JQ: gigabit for allLL37 2JR: gigabit for allLL37 2JS: gigabit for allLL37 2JT: gigabit for allLL37 2JX: gigabit for allLL37 2JY: gigabit for allLL37 2JZ: gigabit for allLL37 2LA: gigabit for allLL37 2QA: gigabit for allLL37 2QB: gigabit for allLL37 2QD: gigabit for allLL37 2QE: gigabit for allLL37 2QF: gigabit for allLL37 2QH: gigabit for allLL37 2QJ: gigabit for allLL37 2QL: gigabit for allLL37 2QN: gigabit for allLL37 2QP: gigabit for allLL37 2QR: gigabit for allLL37 2QS: gigabit for allLL37 2QW: gigabit for allLL37 2UJ: gigabit for allLL37 2UX: gigabit for allLL37 2UZ: gigabit for allLL37 2YJ: gigabit for allLL37 2YQ: gigabit for allLL37 2YX: gigabit for allLL37 2JD: some gigabitLL37 2JE: some gigabitLL37 2JU: some gigabitLL37 2QQ: no gigabit Arthog a Llangelynnin Map of every postcode in LL37, by gigabit broadband Of the 40 postcodes in LL37 that ONS places, 1 have no home or business that can get gigabit, 3 have some that can and 36 can all get it. Places named: Arthog a Llangelynnin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Arthog a Llangelynnin
  • No home or business can get gigabit: 1
  • Some can get gigabit: 3
  • Every home and business can get gigabit: 36
  • Ofcom gives no figure: 0

Of the 40 postcodes in LL37 that ONS places, 1 have no home or business that can get gigabit, 3 have some that can and 36 can all get it.

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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 52.6658, longitude -4.0839. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

LL37 2QQ

What broadband can you get in LL37?

Ofcom reports on 40 of the 40 postcodes in LL37. At 36 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit36 of 40
Postcodes where every home can get superfast40 of 40

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, Connected Nations, Spring 2026, data for January 2026.

What do homes sell for in LL37?

Homes in LL37 sold for a typical £349,050 in the 12 months to September 2026, across 6 sales, HM Land Registry's figures show. The 12 months before gave £167,500 from 7 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£349,050 typical price, the 12 months to September 2026
£167,500 12 months to September 2025
  • Detached £365,000 5 sales
  • Terraced 1 sale, 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 October 2026.

Postcodes in LL37

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

LL37 240 postcodes
UK postcode format explained

Places in LL37

We list no town or village for LL37. A place gets a page here only when enough postcodes are in one: a town or village here is a built-up area named by the Office for National Statistics in England and Wales, or a census locality named by National Records of Scotland. Every LL37 postcode is here, under its sector above.

Who covers LL37

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

  • Dwyfor Meirionnydd40

Police force areas

  • North Wales40

Next to LL37

LL36 postcode district LL38 postcode district All LL districts

"Next to" is by number: the districts before and after LL37 in the LL area.

Check a postcode

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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