CO10 5 postcode sector in the CO10 district

CO10 5 is a sector of the CO10 district: every postcode that starts CO10 5. It has 124 postcodes in use, one of them a large-user postcode. 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 CO10 5 sector, by flood risk

Map of every postcode in the CO10 5 sector, by flood risk Of the 124 postcodes in the CO10 5 sector that ONS places, 7 have a home or business at high risk, 1 are at medium risk at worst, 8 are at low risk at worst and 108 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Box Vale, Assington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1071A134 CO10 5AA: not on the flood risk listCO10 5AD: not on the flood risk listCO10 5AE: not on the flood risk listCO10 5AF: not on the flood risk listCO10 5AJ: not on the flood risk listCO10 5AN: not on the flood risk listCO10 5AP: not on the flood risk listCO10 5EA: not on the flood risk listCO10 5EB: not on the flood risk listCO10 5ED: not on the flood risk listCO10 5EE: not on the flood risk listCO10 5EG: not on the flood risk listCO10 5EH: not on the flood risk listCO10 5EJ: not on the flood risk listCO10 5EL: not on the flood risk listCO10 5EN: not on the flood risk listCO10 5EP: not on the flood risk listCO10 5ER: not on the flood risk listCO10 5ES: not on the flood risk listCO10 5ET: not on the flood risk listCO10 5EU: not on the flood risk listCO10 5EX: not on the flood risk listCO10 5EY: not on the flood risk listCO10 5EZ: not on the flood risk listCO10 5HA: not on the flood risk listCO10 5HB: not on the flood risk listCO10 5HD: not on the flood risk listCO10 5HE: not on the flood risk listCO10 5HN: not on the flood risk listCO10 5HP: not on the flood risk listCO10 5HR: not on the flood risk listCO10 5HT: not on the flood risk listCO10 5HU: not on the flood risk listCO10 5HX: not on the flood risk listCO10 5HZ: not on the flood risk listCO10 5JA: not on the flood risk listCO10 5JB: not on the flood risk listCO10 5JD: not on the flood risk listCO10 5JE: not on the flood risk listCO10 5JG: not on the flood risk listCO10 5JH: not on the flood risk listCO10 5JJ: not on the flood risk listCO10 5JL: not on the flood risk listCO10 5JN: not on the flood risk listCO10 5JP: not on the flood risk listCO10 5JQ: not on the flood risk listCO10 5JS: not on the flood risk listCO10 5JT: not on the flood risk listCO10 5JU: not on the flood risk listCO10 5JW: not on the flood risk listCO10 5JX: not on the flood risk listCO10 5JY: not on the flood risk listCO10 5JZ: not on the flood risk listCO10 5LA: not on the flood risk listCO10 5LB: not on the flood risk listCO10 5LD: not on the flood risk listCO10 5LE: not on the flood risk listCO10 5LF: not on the flood risk listCO10 5LG: not on the flood risk listCO10 5LH: not on the flood risk listCO10 5LJ: not on the flood risk listCO10 5LL: not on the flood risk listCO10 5LN: not on the flood risk listCO10 5LQ: not on the flood risk listCO10 5LR: not on the flood risk listCO10 5LS: not on the flood risk listCO10 5LU: not on the flood risk listCO10 5LW: not on the flood risk listCO10 5LX: not on the flood risk listCO10 5LY: not on the flood risk listCO10 5NA: not on the flood risk listCO10 5NB: not on the flood risk listCO10 5ND: not on the flood risk listCO10 5NE: not on the flood risk listCO10 5NF: not on the flood risk listCO10 5NG: not on the flood risk listCO10 5NH: not on the flood risk listCO10 5NJ: not on the flood risk listCO10 5NQ: not on the flood risk listCO10 5NS: not on the flood risk listCO10 5NT: not on the flood risk listCO10 5NU: not on the flood risk listCO10 5NX: not on the flood risk listCO10 5PA: not on the flood risk listCO10 5PB: not on the flood risk listCO10 5PD: not on the flood risk listCO10 5PE: not on the flood risk listCO10 5PF: not on the flood risk listCO10 5PG: not on the flood risk listCO10 5PH: not on the flood risk listCO10 5PJ: not on the flood risk listCO10 5PL: not on the flood risk listCO10 5PN: not on the flood risk listCO10 5PP: not on the flood risk listCO10 5PR: not on the flood risk listCO10 5PS: not on the flood risk listCO10 5PT: not on the flood risk listCO10 5PU: not on the flood risk listCO10 5PW: not on the flood risk listCO10 5PX: not on the flood risk listCO10 5PY: not on the flood risk listCO10 5PZ: not on the flood risk listCO10 5QA: not on the flood risk listCO10 5QB: not on the flood risk listCO10 5QD: not on the flood risk listCO10 5QE: not on the flood risk listCO10 5QG: not on the flood risk listCO10 5DU: low flood risk at worstCO10 5DW: low flood risk at worstCO10 5DZ: low flood risk at worstCO10 5HS: low flood risk at worstCO10 5LZ: low flood risk at worstCO10 5NP: low flood risk at worstCO10 5NR: low flood risk at worstCO10 5NZ: low flood risk at worstCO10 5HF: medium flood risk at worstCO10 5DX: high flood riskCO10 5HH: high flood riskCO10 5HJ: high flood riskCO10 5HL: high flood riskCO10 5JR: high flood riskCO10 5LP: high flood riskCO10 5LT: high flood risk Box ValeAssington 6 postcodes at high or medium risk, outlined: this goes to CO10 5HL, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the CO10 5 sector, by flood risk Of the 124 postcodes in the CO10 5 sector that ONS places, 7 have a home or business at high risk, 1 are at medium risk at worst, 8 are at low risk at worst and 108 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Box Vale, Assington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. Box ValeAssington
  • A home or business at high risk: 7
  • At medium risk at worst: 1
  • At low risk at worst: 8
  • At very low risk only: 0
  • Not on the at-risk list: 108
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 124 postcodes in the CO10 5 sector that ONS places, 7 have a home or business at high risk, 1 are at medium risk at worst, 8 are at low risk at worst and 108 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. A dashed outline shows where 5 or more lie within 420 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. 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.

Where the postcodes at high or medium risk lie together

What do homes sell for in CO10 5?

Homes in CO10 5 sold for a typical £425,000 in the 12 months to August 2026, across 29 sales, up 32.4% on the 12 months before, HM Land Registry's figures show.

£425,000 typical price, the 12 months to August 2026
£321,000 12 months to August 2025
▲ up 32.4% on the 12 months before
  • Detached £557,500 15 sales
  • Semi-detached £348,000 8 sales
  • Terraced £350,000 6 sales

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

Standard sales of homes at market value at the postcodes that start CO10 5. 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

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.

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