CA18 postcode district: Cumberland

CA18 is a postcode district in England, with 25 postcodes in use in 1 sector. Its council is Cumberland.

Postcodes in use
25
Sectors
1
Council
Cumberland
Places
None listed

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

Every postcode in CA18, by flood risk

Map of every postcode in CA18, by flood risk Of the 25 postcodes in CA18 that ONS places, 7 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 15 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Millom Without. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A595 CA18 1RD: not on the flood risk listCA18 1RF: not on the flood risk listCA18 1RG: not on the flood risk listCA18 1RJ: not on the flood risk listCA18 1RN: not on the flood risk listCA18 1RQ: not on the flood risk listCA18 1RS: not on the flood risk listCA18 1SF: not on the flood risk listCA18 1SH: not on the flood risk listCA18 1SJ: not on the flood risk listCA18 1SL: not on the flood risk listCA18 1SN: not on the flood risk listCA18 1SP: not on the flood risk listCA18 1SR: not on the flood risk listCA18 1SU: not on the flood risk listCA18 1RR: low flood risk at worstCA18 1SD: medium flood risk at worstCA18 1SE: medium flood risk at worstCA18 1RL: high flood riskCA18 1RW: high flood riskCA18 1SG: high flood riskCA18 1SQ: high flood riskCA18 1ST: high flood riskCA18 1SW: high flood risk Millom Without 5 postcodes at high or medium risk, outlined: this goes to CA18 1SG, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in CA18, by flood risk Of the 25 postcodes in CA18 that ONS places, 7 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 15 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Millom Without. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A595 Millom Without
  • A home or business at high risk: 7
  • At medium risk at worst: 2
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 15
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 25 postcodes in CA18 that ONS places, 7 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 15 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 410 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.

The middle of its postcodes: latitude 54.3543, longitude -3.3911. 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.

CA18 1SG29 at high riskCA18 1ST3 at high riskCA18 1SQ2 at high riskCA18 1RW2 at high riskCA18 1RL2 at high riskCA18 1SW1 at high riskCA18 1RT1 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.

CA18 1RT

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. CA18 1SG, is the one with most homes and businesses at high risk.

What broadband can you get in CA18?

Ofcom reports on 25 of the 25 postcodes in CA18. At 3 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit3 of 25
Postcodes where every home can get superfast14 of 25
Postcodes where some cannot get decent broadband2 of 25

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 CA18 at risk of flooding?

10 of the 25 postcodes in CA18 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 64 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 10 of 25 postcodes High: 40Medium: 24Low: 19

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 CA18?

HM Land Registry records 2 sales of homes in CA18 in the 12 months to August 2026: too few to give a typical price.

Semi-detached 1 sale, too few to price
Terraced 1 sale, too few to price

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 CA18

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

CA18 125 postcodes
UK postcode format explained

Places in CA18

We list no town or village for CA18. A place gets a page here only when enough postcodes are in one: a town or village here is a built-up area named by the Office for National Statistics in England and Wales, or a census locality named by National Records of Scotland. Every CA18 postcode is here, under its sector above.

Who covers CA18

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

  • Barrow and Furness25

Police force areas

  • Cumbria25

Next to CA18

CA17 postcode district CA19 postcode district All CA districts

"Next to" is by number: the districts before and after CA18 in the CA area.

Check a postcode

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