SY20 postcode district: Machynlleth and around
SY20 is a postcode district in Wales, with 421 postcodes in use in 3 sectors. It has postcodes in Machynlleth. It is split between 3 councils: Powys (241 postcodes), Gwynedd (143) and Ceredigion (37).
- Postcodes in use
- 421
- Sectors
- 3
- Councils
- 3 councils
- Places
- Machynlleth
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources
Every postcode in SY20, by gigabit broadband
- No home or business can get gigabit: 87
- Some can get gigabit: 134
- Every home and business can get gigabit: 195
- Ofcom gives no figure: 5
- Outline: where 5 or more postcodes without gigabit lie together
Of the 421 postcodes in SY20 that ONS places, 87 have no home or business that can get gigabit, 134 have some that can, 195 can all get it and 5 have no Ofcom figure.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 200 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 52.6150, longitude -3.8186. Open this area on OpenStreetMap
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; gigabit: Ofcom, Connected Nations, Spring 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them
Postcodes without gigabit
87 postcodes here have no gigabit. These are the 12 first in postcode order.
Where the postcodes without gigabit lie together
What broadband can you get in SY20?
Ofcom reports on 416 of the 421 postcodes in SY20. At 195 of them every home and business can get gigabit broadband, and at 38 some cannot get decent broadband (10 Mbit/s).
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it
What do homes sell for in SY20?
Homes in SY20 sold for a typical £220,000 in the 12 months to August 2026, across 52 sales, up 22.2% on the 12 months before, HM Land Registry's figures show.
- 12 months to August 2025
- £180,000
- 12 months to August 2026
- £220,000
▲ up 22.2% on the 12 months before
Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it
Postcodes in SY20
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in SY20
Towns and villages with postcodes in SY20, and how many each has here.
Who covers SY20
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
- Powys241
- Gwynedd143
- Ceredigion37
Constituencies
- Montgomeryshire and Glyndwr241
- Dwyfor Meirionnydd143
- Ceredigion Preseli37
Police force areas
- Dyfed-Powys278
- North Wales143
Next to SY20
"Next to" is by number: the districts before and after SY20 in the SY area.
Check a postcode
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