# Share aged under 15: highest and lowest councils in Wales (2021)

Newport had the highest aged under 15 of Wales’s 22 councils in 2021, at 19.0%.

Ceredigion had the lowest, at 13.2%. The middle council, Denbighshire, had 16.5%.

| Rank | Area | Aged under 15 |
| --- | --- | --- |
| 1 | [Newport](https://openindex.co.uk/newport) | 19.0% |
| 2 | [Merthyr Tydfil](https://openindex.co.uk/merthyr-tydfil) | 17.9% |
| =3 | [Torfaen](https://openindex.co.uk/torfaen) | 17.4% |
| =3 | [Vale of Glamorgan](https://openindex.co.uk/vale-of-glamorgan) | 17.4% |
| =5 | [Caerphilly](https://openindex.co.uk/caerphilly) | 17.3% |
| =5 | [Rhondda Cynon Taf](https://openindex.co.uk/rhondda-cynon-taf) | 17.3% |
| 7 | [Wrexham](https://openindex.co.uk/wrexham) | 17.2% |
| 8 | [Cardiff](https://openindex.co.uk/cardiff) | 17.1% |
| 9 | [Bridgend](https://openindex.co.uk/bridgend) | 16.7% |
| =10 | [Blaenau Gwent](https://openindex.co.uk/blaenau-gwent) | 16.5% |
| =10 | [Denbighshire](https://openindex.co.uk/denbighshire) | 16.5% |
| =10 | [Flintshire](https://openindex.co.uk/flintshire) | 16.5% |
| =10 | [Neath Port Talbot](https://openindex.co.uk/neath-port-talbot) | 16.5% |
| 14 | [Carmarthenshire](https://openindex.co.uk/carmarthenshire) | 16.1% |
| =15 | [Isle of Anglesey](https://openindex.co.uk/isle-of-anglesey) | 16.0% |
| =15 | [Swansea](https://openindex.co.uk/swansea) | 16.0% |
| 17 | [Pembrokeshire](https://openindex.co.uk/pembrokeshire) | 15.8% |
| 18 | [Gwynedd](https://openindex.co.uk/gwynedd) | 15.4% |
| 19 | [Conwy](https://openindex.co.uk/conwy) | 15.0% |
| 20 | [Monmouthshire](https://openindex.co.uk/monmouthshire) | 14.8% |
| 21 | [Powys](https://openindex.co.uk/powys) | 14.5% |
| 22 | [Ceredigion](https://openindex.co.uk/ceredigion) | 13.2% |

Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, ONS Census 2021. Period: 2021. Period: 2021.

## Other rankings of this measure

- [UK](https://openindex.co.uk/rankings/age-under-15/uk)
- [England](https://openindex.co.uk/rankings/age-under-15/england)
- [Northern Ireland](https://openindex.co.uk/rankings/age-under-15/northern-ireland)
- [Scotland](https://openindex.co.uk/rankings/age-under-15/scotland)
- [North East](https://openindex.co.uk/rankings/age-under-15/north-east)
- [North West](https://openindex.co.uk/rankings/age-under-15/north-west)
- [Yorkshire and The Humber](https://openindex.co.uk/rankings/age-under-15/yorkshire-and-the-humber)
- [East Midlands](https://openindex.co.uk/rankings/age-under-15/east-midlands)
- [West Midlands](https://openindex.co.uk/rankings/age-under-15/west-midlands)
- [East of England](https://openindex.co.uk/rankings/age-under-15/east-of-england)
- [London](https://openindex.co.uk/rankings/age-under-15/london)
- [South East](https://openindex.co.uk/rankings/age-under-15/south-east)
- [South West](https://openindex.co.uk/rankings/age-under-15/south-west)

- [The map](https://openindex.co.uk/map/age-under-15)
- [Source and method](https://openindex.co.uk/sources/age-under-15)

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/rankings/age-under-15/wales.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/rankings/age-under-15/wales