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Mountain Ash

About

Mountain Ash lies within the Cynon Valley, following the river of the same name. The ward itself is centred on the town's historic linear layout, with residential streets climbing the steep valley sides from the main commercial thoroughfare. This topography defines the area, with terraced housing characteristic of the South Wales Valleys built into the slopes. The community remains closely connected to its industrial past, with former colliery sites now largely repurposed.

A notable local feature is the Dare Valley Country Park, which offers extensive green space and walking trails on reclaimed land. The town's facilities, including leisure centres and libraries, serve as hubs for the surrounding villages. Public transport links follow the valley floor, connecting to larger towns. The area's social history is evident in its workingmen's institutes and the enduring strength of its community organisations.

Area overview

On average Mountain Ash has high deprivation and high crime levels, with around 128 crimes per 1,000 residents per year. Approximately 12.6% of homes in this area are social housing provided by a local council or housing association. The average income per household in Mountain Ash is £40,793 per year. Mountain Ash is home to around 7,249 people, with a population density of about 568.4 per km2.

Crime rate

7/10

Crimes per 1k residents

128

Deprivation level

8/10

Income level

3/10

Connectivity

N/A

Area Profile

Mountain Ash Population

7,249

Population density

568.4 per km²

Crime

Violence and sexual offences

68.56(+87%)

Public order

20(+124%)

Anti-social behaviour

18.62(+28%)

Criminal damage and arson

10.62(+31%)

Vehicle crime

7.86(+150%)

Wales average

Demographics

British

7,013

96.72%

Other White

0.86%

Other Asian

0.34%

White and Black Caribbean (mixed)

0.26%

Pakistani

0.23%

Total population: 7,251

Economics

No qualifications

1,576

26.38%

Level 4 qualifications or above

1,368

22.9%

Level 2 (GCSEs 9-4)

1,045

17.49%

Level 3 (A level)

909

15.21%

Level 1 (GCSEs 3-1)

591

9.89%

Total 16+ residents: 5,975

Housing

Owns outright

1,271

38.49%

Owns with a mortgage

920

27.86%

Private landlord or letting agency

520

15.75%

Other social rented

290

8.78%

Social rents from council

220

6.66%

Total households: 3,302

Property prices in Mountain Ash

Based on 64 recent sales, the median property price is £128,475 in Mountain Ash area, with individual transactions ranging from £60,500 up to £400,000.

Price distribution per property type (last year)

Median sale price and percentiles per property type (last year)

Median sale price, sales count, and percentile information for each property type in Mountain Ash over the last year.
Type	Sales	Median	5th percentile	25th percentile (Lower quartile)	75th percentile (Upper quartile)	95th percentile
Detached	8	£261,000	£170,248	£256,249	£337,500	£386,000
Flats	1	£65,000	£65,000	£65,000	£65,000	£65,000
Semi-Detached	10	£169,975	£91,600	£126,000	£203,750	£218,250
Terraced	45	£119,995	£75,500	£105,000	£140,000	£188,000

10 years median price trend in Mountain Ash

All postcodes in Mountain Ash

CF454AY

Aberffrwd Villas

CF453NF

Cwrt Llanwonno

CF454LN

Clas Y Dderwen

CF453HB

Oxford Street

CF454DG

New Road

CF454ED

Pen Y Graig Cottage

CF454FB

Rhodfa'R Afon

CF454LG

Aberfan Fawr

CF453DH

Glenbrook

CF453EG

Fernhill

CF453LS

Aberpennar Street

CF453NB

Llanwonno Road

CF453US

Mountain Ash

CF453LY

Coplestone Street

CF453PA

Fountain Street

CF454AD

Jeffrey Street

CF454BE

Phillip Street

CF453EE

Fernhill

CF453RG

Lyle Street

CF454AH

Fron Villas

CF454BW

Navigation Street

CF454HN

Woodside Bungalows

CF454HW

Newton Villas

CF454AW

Beckett Street

CF454BB

Allen Street

CF454BG

Phillip Street

CF453HU

Dover Street

CF453PY

Harcourt Road

CF453HR

Duffryn Street

CF454EB

Greenfield Terrace

CF453LA

Gurney Cottages

CF453NA

Gwernifor Street

CF453PD

Graig Street

CF453RB

Woodland Street

CF453LT

Kingcraft Street

CF453EY

Knight Street

CF453RH

Hamilton Street

CF453AD

Police Houses

CF454AQ

Trem Y Dyffryn

CF454AU

Lewis Street

CF453DG

Glenboi

CF453LE

Cliff Street

CF454LA

Cwrt Fforest

CF454LH

Rowan Close

CF453RF

Woodland Terrace

CF454DP

High Row

CF453EN

Fernhill

CF454EG

New Road

CF453RE

Woodland Street

CF454FG

Cwrt Abergorci

CF454HE

The Laurels

CF453NY

Union Street

CF453EF

Fernhill

CF453LL

Stream Street

CF453LW

Llanwonno Road

CF454AG

Fox Street

CF453HW

Napier Street

CF454HP

Lower Forest Level

CF453DW

Abercwmboi Isaf Road

CF453LU

Ceridwen Street

CF453PG

Oxford Street

CF454DL

Low Row

CF454EA

Blackberry Place

CF453DR

Cwm Alarch

CF454DN

Middle Row

CF454LB

The Poplars

CF453DT

Cwm Alarch Close

CF453RR

Woodland Street

CF454BD

Allen Street

CF453HD

Oxford Street

CF453LF

Eva Street

CF453NL

Duffryn Street

CF453ER

Fernhill

CF454AE

Campbell Terrace

CF454EF

Cefn-Pennar Road

CF454ES

Lon Y Felin

CF453AB

Brynifor

CF453DS

Sierra Pines

CF453EW

Fernhill

CF454DY

Toncoch Terrace

CF453DN

Meadow Close

CF453HH

Foundry Terrace

CF453PW

Commercial Street

CF453RW

Quarry Road

CF453HN

Ifor Street

CF453RT

Dan Y Deri Cottages

CF453NN

St Davids Place

CF453PL

Oxford Street

CF454DW

High Row

CF454HD

Cardiff Road

CF454AN

Richmond Road

CF454DH

Mill Place

CF454HT

New Road

CF454DD

Aberffrwd Road

CF454AT

Aberffrwd Road

CF454DU

The Avenue

CF453PT

Aberdare Road

CF454AL

Granville Terrace

CF454EY

Cardiff Road

CF453LB

Caradoc Street

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/01/2026.

HM Land Registry • Police.uk • DfE • ONS • TfL • National Rail

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Mountain Ash

Interactive map displaying Mountain Ash

About

Area overview

Area Profile

Crime

Crime per 1,000 population

Demographics

Ethnic groups

Economics

Education (age 16+)

Housing

Housing tenure

Property prices in Mountain Ash

All postcodes in Mountain Ash

Data Sources