West Mersea

West Mersea is covered by postcode district CO5. It is in the Colchester council area, Essex.

Every postcode in West Mersea, and which are new since 2020

Map of every postcode in West Mersea, by new since 2020 Of the 223 postcodes in West Mersea that ONS places, 6 are new since 2020 and 217 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: West Mersea. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. 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One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: West Mersea. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. West Mersea
  • New since 2020: 6
  • In use before 2020: 217
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 223 postcodes in West Mersea that ONS places, 6 are new since 2020 and 217 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. A dashed outline shows where 5 or more lie within 160 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 51.7791, longitude 0.9183. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Where the new postcodes lie together

What is it like to live in West Mersea?

Homes sold for a typical £400,000 in the 12 months to September 2026. At 33 of the 221 postcodes Ofcom reports on, every home and business can get gigabit broadband. The Environment Agency counts 208 homes and businesses at high or medium risk of flooding from rivers or the sea, at 23 of its 223 postcodes. It has 1 primary school at its postcodes. One GP practice is at its postcodes. The nearest railway station is Wivenhoe, 9.0 km from the middle of its postcodes in a straight line.

We don't rate places; here are the figures so you can judge.

Sources: HM Land Registry Price Paid Data; Ofcom Connected Nations; Environment Agency flood risk; Get Information about Schools; NHS GP practices; NaPTAN. Each figure is from a section of this page, which gives its date.

What do homes cost in West Mersea?

Homes in West Mersea sold for a typical £400,000 in the 12 months to September 2026, across 88 sales, HM Land Registry's figures show. The 12 months before gave £425,000 from 123 sales: not a change larger than chance would explain, given which homes happened to sell.

£400,000 typical price, the 12 months to September 2026
£425,000 12 months to September 2025
  • Detached £456,250 58 sales
  • Semi-detached £340,000 14 sales
  • Terraced £301,545 8 sales
  • Flat or maisonette £233,750 8 sales

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

Across the whole CO5 district, West Mersea's main postcode district: a typical £375,000.

Sales at the postcodes ONS places in West Mersea: 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 October 2026.

Are new homes being built in West Mersea?

6 of the 223 postcodes now in use in West Mersea came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 11 of the 123 homes sold in West Mersea were newly built (9%), HM Land Registry's records show; across the CO5 district, 21%.

The newest postcodes

A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.

New homes among the homes sold

PeriodIn West MerseaAcross the CO5 district
The 12 months to September 2026 1 of 88 (1%) 9 of 389 (2%)
The 12 months to September 2025 11 of 123 (9%) 131 of 623 (21%)

Standard sales of homes at market value that HM Land Registry marks as newly built. New homes take longer to be registered than other sales, so the latest 12 months count fewer of them than were sold. A share is given from 5 sales or more.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; HM Land Registry Price Paid Data, files dated 28 October 2026.

What broadband can you get in West Mersea?

Ofcom reports on 221 of the 223 postcodes in West Mersea. At 33 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit33 of 221
Postcodes where every home can get superfast215 of 221

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, Connected Nations, Spring 2026, data for January 2026.

Is West Mersea at risk of flooding?

23 of the 223 postcodes in West Mersea 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 208 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 23 of 223 postcodes High: 148Medium: 60Low: 50Very low: 2

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 flood risk, published 6 July 2026.

Which schools are in West Mersea?

The primary schools are at the postcodes in West Mersea. There is no secondary school at its postcodes; these are the nearest to its middle. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules. Special schools and alternative provision, which children join by referral, are not listed.

An orange bar: the school has as many pupils as places, or more (Department for Education's figures).

Find and compare schools in England, on GOV.UK

Source: Get Information about Schools, read 17 October 2026. Each school opens its own record there.

How far is the station from West Mersea?

The nearest railway station to the centre point of the postcodes in West Mersea is Wivenhoe Rail Station, 9.0 km away in a straight line.

  • Wivenhoe Rail Station Railway station 9.0 kmDrive
  • Alresford (Essex) Rail Station Railway station 9.9 kmDrive
  • Hythe (Essex) Rail Station Railway station 11.9 kmDrive

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

Straight-line distances from the middle of the postcodes, not routes. Each postcode page lists its own nearest stations and bus stops. The Department for Transport's register does not say how often services run.

Source: NaPTAN, read 17 October 2026.

Which GP surgeries are in West Mersea?

The GP practices at the postcodes in West Mersea. Each practice sets the area it takes patients from, so check with it before registering.

Find a GP on the NHS website

Sources: NHS GP practices, read 17 October 2026; Care Quality Commission, ratings of 1 October 2026.

Is West Mersea safe? Crime recorded around it

Police.uk records 303 crimes and reports of anti-social behaviour within a mile of the middle of the postcodes in West Mersea over the 12 months from September 2025 to August 2026. August 2026 is the latest month it has published. These are counts, not a rate: we hold no count of the people who live, work or pass through, so we do not say whether a place is safe.

Each month, September 2025 to August 2026

  1. 31 September 2025
  2. 26 October 2025
  3. 30 November 2025
  4. 20 December 2025
  5. 19 January 2026
  6. 19 February 2026
  7. 24 March 2026
  8. 19 April 2026
  9. 42 May 2026
  10. 25 June 2026
  11. 28 July 2026
  12. 20 August 2026

By kind, over the 12 months

Violence and sexual offences137 reports
Anti-social behaviour36 reports
Criminal damage and arson36 reports
Other theft29 reports
Public order25 reports
Burglary9 reports
Shoplifting8 reports
Drugs7 reports

Also: other crime 7, vehicle crime 6, theft from the person 1, bicycle theft 1, possession of weapons 1.

Police.uk says its locations "always represent the approximate location of a crime". Each crime is moved to the nearest of a fixed list of map points, each over a street centre, a public place or a commercial premises, chosen so that every point covers at least eight addresses or none. A mile is a wide circle: in a town it takes in the centre and its shops, where much crime is recorded.

Crime around one postcode

Source: police.uk, data to August 2026, from its download of 30 September 2026.

Who runs West Mersea?

District, borough or city council
Colchester
County council
Essex
Parliamentary constituency
Harwich and North Essex
Police force area
Essex
Region
East of England
Country
England
MP
Sir Bernard Jenkin (Conservative)

All 223 postcodes here share these. Wards differ: check a postcode for yours. What council am I in?

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; UK Parliament, read 14 October 2026.

Moving to West Mersea

Who to tell and what to sort out in your first week.

West Mersea postcodes

223 postcodes in use in West Mersea, by district:

That district is in the CO postcode area.

Check a West Mersea postcode

Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.

Do not know the postcode? What is my postcode?

Places near West Mersea

With the typical price of a home in each, to set beside West Mersea's £400,000. Distances are straight lines between the middles of each place's postcodes.

Quick answers about West Mersea

What is the postcode for West Mersea?
Postcode district CO5, with 223 postcodes in use. Source: ONS.
Which council is West Mersea in?
Colchester, with Essex as its county council. Source: ONS.
Who is the MP for West Mersea?
Sir Bernard Jenkin (Conservative), for Harwich and North Essex. Source: UK Parliament and ONS.
How much are houses in West Mersea?
A typical £400,000 in the 12 months to September 2026, from 88 sales. Source: HM Land Registry.
What schools are in West Mersea?
Primary schools at its postcodes include Mersea Island School; the nearest secondary school to the middle of its postcodes is Colne Community School, 8.5 km away. Source: Department for Education.
Does West Mersea have a railway station?
The nearest is Wivenhoe station, 9.0 km from the middle of its postcodes in a straight line. Source: Department for Transport.
What broadband can you get in West Mersea?
Ofcom reports on 221 of the 223 postcodes in West Mersea. At 33 of them every home and business can get gigabit broadband. Source: Ofcom.
Is West Mersea at risk of flooding?
23 of the 223 postcodes in West Mersea 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 208 homes and businesses in an area at high or medium risk. River and sea risk for the land, not surface water. Source: Environment Agency.
Are new homes being built in West Mersea?
6 of the 223 postcodes now in use in West Mersea came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 11 of the 123 homes sold in West Mersea were newly built (9%), HM Land Registry's records show; across the CO5 district, 21%. Source: ONS and HM Land Registry.

Where the facts on this page come from

Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0. This uses Care Quality Commission information. Contains Parliamentary information licensed under the Open Parliament Licence v3.0.

Licences: Open Government Licence v3.0; Open Parliament Licence v3.0.

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