GU18 postcode district: Lightwater and around, Surrey

GU18 is a postcode district in Surrey, with 145 postcodes in use in 1 sector. It has postcodes in Lightwater and Woking. It is split between 2 councils: Surrey Heath (143 postcodes) and Woking (2).

Postcodes in use
145
Sectors
1
Councils
2 councils
Places
2 places

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

Every postcode in GU18, by flood risk

Map of every postcode in GU18, by flood risk Of the 145 postcodes in GU18 that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst and 137 are not on the Environment Agency's at-risk list. Places named: Lightwater, West End and Chobham, Bisley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A319A3046A320A324 GU18 5AA: not on the flood risk listGU18 5AB: not on the flood risk listGU18 5AD: not on the flood risk listGU18 5AE: not on the flood risk listGU18 5AG: not on the flood risk listGU18 5AH: not on the flood risk listGU18 5LA: not on the flood risk listGU18 5LB: not on the flood risk listGU18 5LD: not on the flood risk listGU18 5LE: not on the flood risk listGU18 5LF: not on the flood risk listGU18 5LQ: not on the flood risk listGU18 5NA: not on the flood risk listGU18 5NB: not on the flood risk listGU18 5ND: not on the flood risk listGU18 5NE: not on the flood risk listGU18 5PA: not on the flood risk listGU18 5PB: not on the flood risk listGU18 5PE: not on the flood risk listGU18 5PF: not on the flood risk listGU18 5QA: not on the flood risk listGU18 5QN: not on the flood risk listGU18 5QR: not on the flood risk listGU18 5QS: not on the flood risk listGU18 5QT: not on the flood risk listGU18 5QU: not on the flood risk listGU18 5QW: not on the flood risk listGU18 5QX: not on the flood risk listGU18 5QY: not on the flood risk listGU18 5QZ: not on the flood risk listGU18 5RA: not on the flood risk listGU18 5RD: not on the flood risk listGU18 5RF: not on the flood risk listGU18 5RG: not on the flood risk listGU18 5RH: not on the flood risk listGU18 5RL: not on the flood risk listGU18 5RN: not on the flood risk listGU18 5RP: not on the flood risk listGU18 5RQ: not on the flood risk listGU18 5RR: not on the flood risk listGU18 5RS: not on the flood risk listGU18 5RT: not on the flood risk listGU18 5RW: not on the flood risk listGU18 5RY: not on the flood risk listGU18 5SA: not on the flood risk listGU18 5SD: not on the flood risk listGU18 5SE: not on the flood risk listGU18 5SG: not on the flood risk listGU18 5SJ: not on the flood risk listGU18 5SL: not on the flood risk listGU18 5SN: not on the flood risk listGU18 5SP: not on the flood risk listGU18 5SQ: not on the flood risk listGU18 5SU: not on the flood risk listGU18 5SX: not on the flood risk listGU18 5SZ: not on the flood risk listGU18 5TA: not on the flood risk listGU18 5TB: not on the flood risk listGU18 5TD: not on the flood risk listGU18 5TF: not on the flood risk listGU18 5TG: not on the flood risk listGU18 5TH: not on the flood risk listGU18 5TJ: not on the flood risk listGU18 5TL: not on the flood risk listGU18 5TN: not on the flood risk listGU18 5TP: not on the flood risk listGU18 5TQ: not on the flood risk listGU18 5TR: not on the flood risk listGU18 5TS: not on the flood risk listGU18 5TT: not on the flood risk listGU18 5TW: not on the flood risk listGU18 5TX: not on the flood risk listGU18 5TY: not on the flood risk listGU18 5TZ: not on the flood risk listGU18 5UA: not on the flood risk listGU18 5UD: not on the flood risk listGU18 5UG: not on the flood risk listGU18 5UH: not on the flood risk listGU18 5UJ: not on the flood risk listGU18 5UL: not on the flood risk listGU18 5UN: not on the flood risk listGU18 5UP: not on the flood risk listGU18 5UR: not on the flood risk listGU18 5US: not on the flood risk listGU18 5UT: not on the flood risk listGU18 5UU: not on the flood risk listGU18 5UW: not on the flood risk listGU18 5UX: not on the flood risk listGU18 5UZ: not on the flood risk listGU18 5XA: not on the flood risk listGU18 5XB: not on the flood risk listGU18 5XD: not on the flood risk listGU18 5XE: not on the flood risk listGU18 5XF: not on the flood risk listGU18 5XH: not on the flood risk listGU18 5XJ: not on the flood risk listGU18 5XP: not on the flood risk listGU18 5XQ: not on the flood risk listGU18 5XR: not on the flood risk listGU18 5XS: not on the flood risk listGU18 5XU: not on the flood risk listGU18 5XX: not on the flood risk listGU18 5XY: not on the flood risk listGU18 5XZ: not on the flood risk listGU18 5YA: not on the flood risk listGU18 5YB: not on the flood risk listGU18 5YD: not on the flood risk listGU18 5YE: not on the flood risk listGU18 5YF: not on the flood risk listGU18 5YG: not on the flood risk listGU18 5YH: not on the flood risk listGU18 5YL: not on the flood risk listGU18 5YN: not on the flood risk listGU18 5YP: not on the flood risk listGU18 5YQ: not on the flood risk listGU18 5YR: not on the flood risk listGU18 5YT: not on the flood risk listGU18 5YU: not on the flood risk listGU18 5YW: not on the flood risk listGU18 5YX: not on the flood risk listGU18 5YY: not on the flood risk listGU18 5YZ: not on the flood risk listGU18 5PJ: low flood risk at worstGU18 5RX: low flood risk at worstGU18 5RZ: low flood risk at worstGU18 5SW: low flood risk at worstGU18 5QQ: high flood riskGU18 5RU: high flood riskGU18 5SH: high flood riskGU18 5SR: high flood risk LightwaterWest End and ChobhamBisley Map of every postcode in GU18, by flood risk Of the 145 postcodes in GU18 that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst and 137 are not on the Environment Agency's at-risk list. Places named: Lightwater, Woking, West End and Chobham, Bisley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A319M3 LightwaterWokingWest End and ChobhamBisley
  • A home or business at high risk: 4
  • At medium risk at worst: 0
  • At low risk at worst: 4
  • At very low risk only: 0
  • Not on the at-risk list: 137

Of the 145 postcodes in GU18 that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst and 137 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.

The middle of its postcodes: latitude 51.3485, longitude -0.6700. 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; 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.

GU18 5QQ2 at high riskGU18 5RU1 at high riskGU18 5SH1 at high riskGU18 5SR1 at high risk

What broadband can you get in GU18?

Ofcom reports on 143 of the 145 postcodes in GU18. At 76 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit76 of 143
Postcodes where every home can get superfast133 of 143

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

Is GU18 at risk of flooding?

8 of the 145 postcodes in GU18 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 13 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 8 of 145 postcodes High: 5Medium: 8Low: 46

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in GU18?

Homes in GU18 sold for a typical £545,000 in the 12 months to August 2026, across 79 sales, up 16% on the 12 months before, HM Land Registry's figures show.

£545,000 typical price, the 12 months to August 2026
£470,000 12 months to August 2025
▲ up 16% on the 12 months before
  • Detached £660,000 37 sales
  • Semi-detached £470,000 19 sales
  • Terraced £395,000 9 sales
  • Flat or maisonette £229,000 14 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 GU18

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

GU18 5145 postcodes
UK postcode format explained

Places in GU18

Towns and villages with postcodes in GU18, and how many each has here.

Lightwater postcodes,138Woking postcodes,2

Who covers GU18

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

  • Surrey Heath143
  • Woking2

Police force areas

  • Surrey145

Next to GU18

GU17 postcode district GU19 postcode district All GU districts Lightwater postcodes

"Next to" is by number: the districts before and after GU18 in the GU area.

Check a postcode

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