# LL55 9: postcode sector in Gwynedd

8 live postcodes, all in Gwynedd.

A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of Gwynedd. Open the map at LL55 9 for neighbourhoods and points.

In: [Gwynedd](https://openindex.co.uk/gwynedd) › [LL55](https://openindex.co.uk/postcode/ll55)

## Key figures

- **Average house price: £203,555** (August 2026). Gwynedd’s average house price was £203,555 in August 2026 (HM Land Registry). Up 4.1% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £32,868** (2025). Full-time workers living in Gwynedd earned a median of £32,868 in 2025 (ONS earnings survey). 17th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 6.2×** (2025). A home in Gwynedd costs 6.2 times local full-time pay. Joint 107th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026.
- **Population estimate: 120,295** (2025). Gwynedd’s population was an estimated 120,295 in mid-2025 (ONS population estimates). Down 0.3% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## About

- Type: Postcode sector
- Live postcodes: 8
- Council: [Gwynedd](https://openindex.co.uk/gwynedd)
- Centre: 53.1403, -4.2555

Council: [Gwynedd](https://openindex.co.uk/gwynedd) (Welsh council, 100%).

## Your MP

- [Dwyfor Meirionnydd](https://openindex.co.uk/constituency/dwyfor-meirionnydd): Liz Saville Roberts (Plaid Cymru), MP since July 2024.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Postcodes in LL55 9

[LL55 9AQ](https://openindex.co.uk/postcode/ll55-9aq), [LL55 9BH](https://openindex.co.uk/postcode/ll55-9bh), [LL55 9BX](https://openindex.co.uk/postcode/ll55-9bx), [LL55 9DA](https://openindex.co.uk/postcode/ll55-9da), [LL55 9DD](https://openindex.co.uk/postcode/ll55-9dd), [LL55 9DE](https://openindex.co.uk/postcode/ll55-9de), [LL55 9ZX](https://openindex.co.uk/postcode/ll55-9zx), [LL55 9ZZ](https://openindex.co.uk/postcode/ll55-9zz)

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/ll55-9.

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 2026.10.11. The HTML page: https://openindex.co.uk/postcode/ll55-9