SY17 postcode district: Powys

SY17 is a postcode district in Wales, with 178 postcodes in use in 1 sector. Its council is Powys.

Postcodes in use
178
Sectors
1
Council
Powys

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in SY17, and which are new since 2020

Map of every postcode in SY17, by new since 2020 Of the 178 postcodes in SY17 that ONS places, 1 are new since 2020 and 177 were in use before 2020. Places named: Caersws, Llandinam with Dolfor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A489 SY17 5AA: before 2020SY17 5AB: before 2020SY17 5AD: before 2020SY17 5AE: before 2020SY17 5AF: before 2020SY17 5AH: before 2020SY17 5AJ: before 2020SY17 5AP: before 2020SY17 5AQ: before 2020SY17 5AS: before 2020SY17 5AT: before 2020SY17 5AU: before 2020SY17 5AX: before 2020SY17 5AZ: before 2020SY17 5BA: before 2020SY17 5BB: before 2020SY17 5BE: before 2020SY17 5BG: before 2020SY17 5BH: before 2020SY17 5BL: before 2020SY17 5BQ: before 2020SY17 5BS: before 2020SY17 5BT: before 2020SY17 5BY: before 2020SY17 5BZ: before 2020SY17 5DB: before 2020SY17 5DD: before 2020SY17 5DE: before 2020SY17 5DF: before 2020SY17 5DG: before 2020SY17 5DH: before 2020SY17 5DJ: before 2020SY17 5DL: before 2020SY17 5DN: before 2020SY17 5DQ: before 2020SY17 5DR: before 2020SY17 5DS: before 2020SY17 5DT: before 2020SY17 5DW: before 2020SY17 5DX: before 2020SY17 5ED: before 2020SY17 5EF: before 2020SY17 5EH: before 2020SY17 5EJ: before 2020SY17 5EP: before 2020SY17 5ET: before 2020SY17 5EU: before 2020SY17 5HA: before 2020SY17 5HD: before 2020SY17 5HG: before 2020SY17 5HH: before 2020SY17 5HP: before 2020SY17 5HQ: before 2020SY17 5HR: before 2020SY17 5HS: before 2020SY17 5HT: before 2020SY17 5HU: before 2020SY17 5HW: before 2020SY17 5HY: before 2020SY17 5JA: before 2020SY17 5JB: before 2020SY17 5JD: before 2020SY17 5JE: before 2020SY17 5JF: before 2020SY17 5JG: before 2020SY17 5JH: before 2020SY17 5JL: before 2020SY17 5JP: before 2020SY17 5JQ: before 2020SY17 5JR: before 2020SY17 5JS: before 2020SY17 5JT: before 2020SY17 5JU: before 2020SY17 5JX: before 2020SY17 5JY: before 2020SY17 5JZ: before 2020SY17 5LA: before 2020SY17 5LB: before 2020SY17 5LD: before 2020SY17 5LE: before 2020SY17 5LG: before 2020SY17 5LH: before 2020SY17 5LJ: before 2020SY17 5LL: before 2020SY17 5LS: before 2020SY17 5LT: before 2020SY17 5LX: before 2020SY17 5LY: before 2020SY17 5ND: before 2020SY17 5NE: before 2020SY17 5NJ: before 2020SY17 5NL: before 2020SY17 5NN: before 2020SY17 5NP: before 2020SY17 5NQ: before 2020SY17 5NR: before 2020SY17 5NW: before 2020SY17 5NY: before 2020SY17 5NZ: before 2020SY17 5PA: before 2020SY17 5PB: before 2020SY17 5PD: before 2020SY17 5PE: before 2020SY17 5PH: before 2020SY17 5PL: before 2020SY17 5PN: before 2020SY17 5PR: before 2020SY17 5PS: before 2020SY17 5PT: before 2020SY17 5PU: before 2020SY17 5PW: before 2020SY17 5PX: before 2020SY17 5PY: before 2020SY17 5QE: before 2020SY17 5QF: before 2020SY17 5QG: before 2020SY17 5QH: before 2020SY17 5QP: before 2020SY17 5QQ: before 2020SY17 5QR: before 2020SY17 5QS: before 2020SY17 5QT: before 2020SY17 5QU: before 2020SY17 5QX: before 2020SY17 5RE: before 2020SY17 5RF: before 2020SY17 5RG: before 2020SY17 5RH: before 2020SY17 5RJ: before 2020SY17 5RL: before 2020SY17 5RN: before 2020SY17 5RP: before 2020SY17 5RQ: before 2020SY17 5RR: before 2020SY17 5RS: before 2020SY17 5RW: before 2020SY17 5SA: before 2020SY17 5SB: before 2020SY17 5SD: before 2020SY17 5SE: before 2020SY17 5SF: before 2020SY17 5SG: before 2020SY17 5QZ: new since 2020 CaerswsLlandinam with Dolfor Map of every postcode in SY17, by new since 2020 Of the 178 postcodes in SY17 that ONS places, 1 are new since 2020 and 177 were in use before 2020. Places named: Caersws, Llandinam with Dolfor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A489 CaerswsLlandinam with Dolfor
  • New since 2020: 1
  • In use before 2020: 177

Of the 178 postcodes in SY17 that ONS places, 1 are new since 2020 and 177 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 52.5170, longitude -3.4697. 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; when each came into use: the same directory; 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

The newest postcode

What broadband can you get in SY17?

Ofcom reports on 178 of the 178 postcodes in SY17. At 84 of them every home and business can get gigabit broadband, and at 17 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit84 of 178
Postcodes where every home can get superfast111 of 178
Postcodes where some cannot get decent broadband17 of 178

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 checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

What do homes sell for in SY17?

Homes in SY17 sold for a typical £228,000 in the 12 months to August 2026, across 45 sales, down 4% on the 12 months before, HM Land Registry's figures show.

£228,000 typical price, the 12 months to August 2026
£237,500 12 months to August 2025
▼ down 4% on the 12 months before
  • Detached £430,000 19 sales
  • Semi-detached £200,000 13 sales
  • Terraced £165,000 13 sales

Each bar is that kind's typical price, against the most expensive kind here.

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 SY17

Pick a sector, then a postcode. A sector is the district plus the next digit.

UK postcode format explained

Places in SY17

We list no town or village for SY17. A place gets a page here only when enough postcodes are in one: a town or village here is a built-up area named by the Office for National Statistics in England and Wales, or a census locality named by National Records of Scotland. Every SY17 postcode is here, under its sector above.

Who covers SY17

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Montgomeryshire and Glyndwr178

Police force areas

  • Dyfed-Powys178

Next to SY17

"Next to" is by number: the districts before and after SY17 in the SY area.

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