Place CheckerOfficial local evidence

Census 2021 neighbourhood · W02000019

Porthmadog

Porthmadog is a Census neighbourhood of about 6,660 residents in Gwynedd. This is a statistical area, not an administrative boundary or a postcode district.

Area evidence brief for Gwynedd
6,660

Usual residents

ONS Census 2021 · MSOA

3,062

Households

ONS Census 2021 · MSOA

28.5

Residents per km²

ONS Census 2021 · MSOA

69.6%

Households owning their home

ONS Census 2021 · tenure

16.7%

Households with no car or van

ONS Census 2021 · car availability

33.6%

Adults with a degree or above

ONS Census 2021 · qualifications

Neighbourhoods most like this one

Closest matches elsewhere in England and Wales, across 14 Census themes. Similarity is statistical, not a recommendation, and says nothing about how anywhere feels to live in.

Llangollen & Llandrillo, Denbighshire6,237 residents · 66.3% owned · 15.6% no carFishguard, Pembrokeshire9,628 residents · 69.3% owned · 14.1% no carBarnard Castle & Upper Teesdale, County Durham12,145 residents · 67.8% owned · 15.7% no carBrampton & Irthing, Carlisle6,485 residents · 66.3% owned · 16.3% no carConwy & Afon Roe, Conwy6,209 residents · 70.8% owned · 14.4% no carLlanidloes, Blaen Hafren & Llandinam, Powys6,491 residents · 70.0% owned · 11.3% no car

Most similar within Gwynedd

The closest matches in the same local authority.

Barmouth & Dolgellau, Gwynedd6,128 residents · 64.3% owned · 20.8% no carCricieth & Llanaelhaearn, Gwynedd6,483 residents · 71.6% owned · 11.8% no carHarlech & Llanbedr, Gwynedd5,551 residents · 74.5% owned · 13.8% no carPwllheli & Morfa Nefyn, Gwynedd7,753 residents · 61.7% owned · 18.4% no car

Census 2021 · Census neighbourhood (MSOA)

Life in Porthmadog

People, households and homes at the stated Census geography. These describe the 2021 population, not the occupants of a particular home.

Tenure

Owned69.6%
2,132 households
Private rented15.6%
479 households
Social rented14.5%
444 households
Lives rent free0.1%
4 households
Shared ownership0.1%
3 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Detached37.7%
1,154 households
Terraced31.4%
961 households
Semi-detached20%
613 households
In a purpose-built block of flats or tenement7.3%
223 households
In a commercial building, for example, in an office building, hotel or over a shop1.8%
56 households
Part of a converted or shared house, including bedsits0.8%
24 households
Part of another converted building, for example, former school, church or warehouse0.7%
20 households
A caravan or other mobile or temporary structure0.4%
12 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household44.7%
1,370 households
2 cars or vans in household27.5%
844 households
No cars or vans in household16.7%
513 households
3 or more cars or vans in household11%
337 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms45.8%
1,403 households
2 bedrooms24.2%
740 households
4 or more bedrooms23.7%
725 households
1 bedroom6.4%
195 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household58.2%
1,784 households
One-person household37.4%
1,145 households
Other household types4.4%
134 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Household size

1 person in household37.4%
1,145 households
2 people in household35.9%
1,101 households
3 people in household11.8%
361 households
4 people in household9.5%
290 households
5 people in household3.7%
114 households
6 people in household1.2%
36 households
7 people in household0.4%
12 households
8 or more people in household0.1%
4 households
0 people in household0%
0 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1514.2%
947 residents
15–2913.4%
894 residents
30–4414.3%
955 residents
45–6427.1%
1,809 residents
65 and over30.9%
2,058 residents
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White97.7%
6,510 residents
Mixed or Multiple ethnic groups1.1%
72 residents
Asian, Asian British or Asian Welsh0.8%
52 residents
Other ethnic group0.3%
20 residents
Black, Black British, Black Welsh, Caribbean or African0.1%
6 residents
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

Level 4 qualifications or above33.6%
1,893 residents aged 16 and over
Level 3 qualifications16.6%
934 residents aged 16 and over
No qualifications16.5%
929 residents aged 16 and over
Level 2 qualifications14.9%
840 residents aged 16 and over
Level 1 and entry level qualifications8%
451 residents aged 16 and over
Apprenticeship6.6%
373 residents aged 16 and over
Other qualifications3.8%
214 residents aged 16 and over
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)52%
2,931 residents aged 16 and over
Economically inactive46.5%
2,620 residents aged 16 and over
Economically active and a full-time student1.5%
83 residents aged 16 and over
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L4, L5 and L6 Lower managerial, administrative and professional occupations19.7%
1,109 residents aged 16 and over
L8 and L9 Small employers and own account workers16.3%
916 residents aged 16 and over
L12 Semi-routine occupations13.7%
774 residents aged 16 and over
L13 Routine occupations12.3%
691 residents aged 16 and over
L7 Intermediate occupations10.5%
592 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations9.1%
513 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed7.2%
404 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations6.7%
378 residents aged 16 and over
L15 Full-time students4.6%
257 residents aged 16 and over
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health47.4%
3,157 residents
Good health33.1%
2,203 residents
Fair health14.5%
966 residents
Bad health4%
264 residents
Very bad health1.1%
70 residents
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act79.7%
5,309 residents
Disabled under the Equality Act20.3%
1,351 residents
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is not deprived in any dimension50%
1,532 households
Household is deprived in one dimension34.7%
1,064 households
Household is deprived in two dimensions12.8%
393 households
Household is deprived in three dimensions2.4%
74 households
Household is deprived in four dimensions0%
0 households
Porthmadog · Census neighbourhood (MSOA) · ONS Census 2021

Each percentage uses its Census table’s own total. Rounding and source categories can affect totals. ONS Census data · OGL v3.0.

How the similarity is worked out

Alike on the Census, which is not the same as alike to live in.

Every neighbourhood is described by its shares across the Census themes above — tenure, housing, cars, household make-up, age, ethnic group, qualifications, work, health and deprivation — each theme weighted equally, which is the approach ONS takes in its own Output Area Classification. The neighbourhoods listed are the closest on those numbers, published in full rather than folded into a score. Nothing here measures schools, crime, prices or what a place is like to be in, and a close match is a statistical fact rather than a suggestion to move.

Browse every neighbourhood in Gwynedd

Evidence ledger

Source and date are part of the record.

Shared catalogue checked 2026-08-28: 88 candidate data layers listed. Catalogue presence is not publication approval; only separately approved public projections may be shown.