CF23 8RQ

POSTCODE

CF23 8RQ is a postcode in Pontprennau and Old St Mellons.

Small user postcodeQuality indicator 1 (highest positional precision)Updated 2026-08-01
Coordinates
51.5341, -3.1502
OS grid ST203823 (320,315, 182,321)
IMD Wales
9/10
#1699
Crime · Aug '26
Around average · 9.5 per 1k
MoM +13% vs Jul '26
Plus Code
9C3RGRMX+MW
Least deprived 10⁠–⁠20%
IMD Wales
Around average · 9.5 per 1k
Crime · Aug '26
Wales
Region

Deprivation Index (IMD)

IMD Wales — Index of Multiple Deprivation
Measures deprivation across income, employment, health, education, access to services, housing, and community safety.
1699
Rank out of 1,917 LSOAs in Wales
1 - Most deprived10 - Least deprived
Rank 1699 out of 1,917 lower layer super output areas in Wales. N/A for England, Scotland and Northern Ireland as this postcode is in Wales.

Property sales (Land Registry)

England & Wales
See sold prices in CF23

Police Recorded Crime near CF23 8RQ

England & Wales
Crime trends · near CF23 8RQ

Counts are for Pontprennau and Old St Mellons electoral ward, not a 1-mile police.uk street search around this postcode.

data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
23
YoY stable
332211
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
32
YoY —
32172
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
4
YoY —
1580
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
0
YoY —
1050
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
10
YoY —
1272
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
42
YoY +14%
422814
Sep '24Mar '25Sep '25Mar '26Aug '26

0 of 6 key categories improving · other recorded crime rising

111
incidents · Aug '26

Demographics (LSOA 2021 context)

Ethnicity

Total residents: 1,914
White Brit.81.2%
Other White4.1%
Other ethnic group: Arab2.2%
Pakistani1.8%
Chinese1.7%
+ 2 other groups · 8.9%

Religion

Total residents: 1,914
Christian55.0%
No religion32.5%
Not answered6.0%
Muslim4.8%
+ other · 1.6%

Age groups

Total residents: 1,915
50–6423.7%
35–4922.2%
25–3410.1%
65–748.9%
10–157.9%
+ 6 other age groups · 27.1%

Households

Total households: 748
Married or civil partnership couple: Dependent children23.3%
Married or civil partnership couple: No children14.3%
One person: other13.9%
Married or civil partnership couple: All children non-dependent9.1%
One person: aged 66+7.5%
+ 9 other households · 32.0%

Getting around

Straight-line distance from this postcode. Walking time is approximate.

Stations

  • Llanishen Rail Station

    Rail · SE Entrance

    2.2 km straight lineabout 27 min
  • Lisvane & Thornhill Rail Station

    Rail · East Entrance

    2.7 km straight lineabout 34 min
  • Heath High Level Rail Station

    Rail · NE Entrance

    2.9 km straight lineabout 36 min

Bus stops

  • Clos Cwm Du

    Bus · after · north-west

    417 m straight lineabout 5 min
  • Pentwyn Aldi

    Bus · o/s · east

    418 m straight lineabout 5 min
  • Glyn Eiddw

    Bus · before · east

    440 m straight lineabout 6 min
  • Glyn Eiddw

    Bus · after · west

    459 m straight lineabout 6 min
  • Clos Cwm Du

    Bus · after · south-east

    466 m straight lineabout 6 min

Coordinates & Location for CF23 8RQ

Wales
Country
Cardiff
Local Authority
Pontprennau and Old St Mellons
Ward
Cardiff
Travel to Work
TTWA
Postcode
CF23 8RQ
Coordinates
51.5341, -3.1502
Grid reference
ST203823
Easting
320,315
Northing
182,321
Region
Wales
Plus Code
9C3RGRMX+MW
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Cardiff
Travel to Work
Cardiff
ITL Region
Cardiff
National Park
Non-National Park

Administrative Information

Cardiff
Local Authority
Council Area
Cardiff North W07000090
Constituency
W07000090
South Wales
Police Force
Wales
Ward
Pontprennau and Old St Mellons
Constituency code
W07000090
EU Electoral Region
Wales
Parish
Pontprennau
International Territorial Level
Cardiff

Health & NHS

Cardiff and Vale University Health Board
Health Authority
Serving (pseudo) Wales
NHS Wales
Wales
Cancer Alliance
National
Health Authority
Cardiff and Vale University Health Board
NHS Region
Wales
Integrated Care Board
Wales
Primary Care Org
Cardiff and Vale University Health Board
Sub ICB Location
Cardiff and Vale University
Cancer Alliance
Wales

Statistical Areas

LSOA 2021
Super Output Area
Cardiff 003A W01001841
W01001841
MSOA 2021
Mid Super Output
Cardiff 003 W02000369
W02000369
LSOA 2011
Super Output Area
Cardiff 003A W01001841
W01001841
MSOA 2011
Mid Super Output
Cardiff 003 W02000369
W02000369
Urban: Nearer to a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 Classification
(England/Wales) Urban city and town C1
2021 Classification
Urban: Nearer to a major town or city UN1

Sun & Time Information

7:48 AM6:05 PM
7:48 AM
Sunrise
6:05 PM
Sunset
10 hours 17 minutes of daylight today
Sunrise (today)
7:48 AM
Sunset (today)
6:05 PM
Daylight duration
10 hours 17 minutes
Time zone
GMT / BST (UTC +0 / +1)

Postcode History

March 2004
First Introduced
Active from
Not terminated
Usage Ended
Terminated
~22 years
Active Duration
2004 -> Present
March 2004 — Introduced
Postcode CF23 8RQ introduced by Royal Mail.
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Urban city and town C1.
2021 — Census Update
2021 Census classification: Urban: Nearer to a major town or city UN1. LSOA W01001841 and MSOA W02000369 assigned.
2025 — Indices of Deprivation
IMD Wales rank: 1699
Present — Active
Postcode CF23 8RQ is currently active and in use.
First introduced
March 2004
Usage ended
Not terminated
Active duration
~22 years
Last updated
2026-08-01
Current status
Live

School applications

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