WD18 9 postcode sector in the WD18 district

WD18 9 is a sector of the WD18 district: every postcode that starts WD18 9. It has 42 postcodes in use, 12 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the WD18 9 sector, by flood risk

Map of every postcode in the WD18 9 sector, by flood risk Of the 42 postcodes in the WD18 9 sector that ONS places, 1 have a home or business at high risk and 41 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Moor Park & Eastbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. WD18 9AA: not on the flood risk listWD18 9AB: not on the flood risk listWD18 9AD: not on the flood risk listWD18 9AE: not on the flood risk listWD18 9AF: not on the flood risk listWD18 9AG: not on the flood risk listWD18 9DA: not on the flood risk listWD18 9ER: not on the flood risk listWD18 9ET: not on the flood risk listWD18 9EU: not on the flood risk listWD18 9EZ: not on the flood risk listWD18 9HG: not on the flood risk listWD18 9JE: not on the flood risk listWD18 9NA: not on the flood risk listWD18 9PX: not on the flood risk listWD18 9QD: not on the flood risk listWD18 9QN: not on the flood risk listWD18 9QP: not on the flood risk listWD18 9QQ: not on the flood risk listWD18 9QR: not on the flood risk listWD18 9RE: not on the flood risk listWD18 9RF: not on the flood risk listWD18 9RS: not on the flood risk listWD18 9RU: not on the flood risk listWD18 9SB: not on the flood risk listWD18 9SP: not on the flood risk listWD18 9SR: not on the flood risk listWD18 9SS: not on the flood risk listWD18 9SW: not on the flood risk listWD18 9TB: not on the flood risk listWD18 9TD: not on the flood risk listWD18 9TL: not on the flood risk listWD18 9TS: not on the flood risk listWD18 9TT: not on the flood risk listWD18 9UD: not on the flood risk listWD18 9UN: not on the flood risk listWD18 9UP: not on the flood risk listWD18 9XG: not on the flood risk listWD18 9XT: not on the flood risk listWD18 9QG: high flood risk Moor Park & Eastbury Map of every postcode in the WD18 9 sector, by flood risk Of the 42 postcodes in the WD18 9 sector that ONS places, 1 have a home or business at high risk and 41 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Moor Park & Eastbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Moor Park & Eastbury
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 41

Of the 42 postcodes in the WD18 9 sector that ONS places, 1 have a home or business at high risk and 41 are not on the Environment Agency's at-risk list.

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. 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.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

WD18 9QG1 at high risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

WD18 9QA

What do homes sell for in WD18 9?

HM Land Registry records no standard sales of homes in WD18 9 in the 12 months to August 2026.

Standard sales of homes at market value at the postcodes that start WD18 9. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 WD18 9

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

WD18 9AAWD18 9ABWD18 9ADWD18 9AEWD18 9AFWD18 9AGWD18 9DAWD18 9ERWD18 9ETWD18 9EUWD18 9EZWD18 9HGWD18 9JEWD18 9NAWD18 9PXWD18 9QAWD18 9QDWD18 9QGWD18 9QNWD18 9QPWD18 9QQWD18 9QRWD18 9REWD18 9RFWD18 9RSWD18 9RUWD18 9SBWD18 9SPWD18 9SRWD18 9SSWD18 9SWWD18 9TBWD18 9TDWD18 9TLWD18 9TSWD18 9TTWD18 9UDWD18 9UNWD18 9UPWD18 9WWWD18 9XGWD18 9XT

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.