CH66 postcode district: Ellesmere Port and around, Cheshire West and Chester
CH66 is a postcode district in England, with 997 postcodes in use in 10 sectors. It has postcodes in Ellesmere Port and Willaston. Its council is Cheshire West and Chester.
- Postcodes in use
- 997
- Sectors
- 10
- Council
- Cheshire West and Chester
- 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 CH66, by flood risk
- A home or business at high risk: 8
- At medium risk at worst: 2
- At low risk at worst: 9
- At very low risk only: 0
- Not on the at-risk list: 978
Of the 997 postcodes in CH66 that ONS places, 8 have a home or business at high risk, 2 are at medium risk at worst, 9 are at low risk at worst and 978 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 53.2776, longitude -2.9373. 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.
What broadband can you get in CH66?
Ofcom reports on 985 of the 997 postcodes in CH66. At 900 of them every home and business can get gigabit broadband.
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
Is CH66 at risk of flooding?
19 of the 997 postcodes in CH66 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 54 homes and businesses in an area at high or medium risk.
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 CH66?
Homes in CH66 sold for a typical £230,000 in the 12 months to August 2026, across 425 sales, up 4.5% on the 12 months before, HM Land Registry's figures show.
- 12 months to August 2025
- £220,000
- 12 months to August 2026
- £230,000
▲ up 4.5% 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 CH66
Pick a sector, then a postcode. A sector is the district plus the next digit.
Places in CH66
Towns and villages with postcodes in CH66, and how many each has here.
Who covers CH66
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
- Ellesmere Port and Bromborough875
- Chester North and Neston121
- Runcorn and Helsby1
Police force areas
- Cheshire997
Next to CH66
"Next to" is by number: the districts before and after CH66 in the CH area.
Check a postcode
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