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LL39

Postcode district

Postcode district covering Arthog, in Gwynedd.

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 LL39 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 100% of people in LL39 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
296
58th least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
94.5%
UK 87.8%
Ofcom · Jan 2026
Aged 15 to 64
57.2%
Joint 390th lowest of 2,756
ONS Census 2021 · 2021

How LL39 compares

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

LL39Middle
Population66 postcode districts, LL · 2021
Population: every postcode district in LL66 areas from 259 to 42,043. The middle area is 3,858. LL39 is 296.
2962nd least populated
People in radon Affected Area squares66 postcode districts, LL · 2022
People in radon Affected Area squares: every postcode district in LL66 areas from 0.0% to 100.0%. The middle area is 100.0%. LL39 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage66 postcode districts, LL · Jan 2026
Gigabit broadband coverage: every postcode district in LL66 areas from 1.6% to 98.8%. The middle area is 78.7%. LL39 is 94.5%.
94.5%10th highest
Aged 15 to 6466 postcode districts, LL · 2021
Aged 15 to 64: every postcode district in LL66 areas from 41.6% to 70.5%. The middle area is 58.3%. LL39 is 57.2%.
57.2%30th lowest

What is the population of LL39?

LL39 had 296 usual residents at the census.

LL39 is the 58th least populated of 2,756 in the UK.

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.

Postcode sectors in LL391

Council1

Postcode districts next to LL394

Nearest rail stations1

More in the LL postcode area2

LL39 in brief

LL39 is a postcode district covering Arthog, in Gwynedd.

About 297 people lived in LL39 in mid-2024 (worked out by Open Index from ONS small-area estimates).

LL39 had 296 usual residents at the census.

About 100% of people in LL39 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In LL39, 94.5% of homes and businesses could get gigabit-capable broadband in January 2026.

57.2% of residents in LL39 were aged 15 to 64 at the census.