CA4 postcode district: England

CA4 is a postcode district in England, with 478 postcodes in use in 3 sectors. It is split between 2 councils: Cumberland (307 postcodes) and Westmorland and Furness (171).

Postcodes in use
478
Sectors
3
Councils
2 councils
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 CA4, by flood risk

Map of every postcode in CA4, by flood risk Of the 478 postcodes in CA4 that ONS places, 40 have a home or business at high risk, 12 are at medium risk at worst, 19 are at low risk at worst and 407 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. Places named: Carlisle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. M6A6 CA4 0AA: not on the flood risk listCA4 0AB: not on the flood risk listCA4 0AD: not on the flood risk listCA4 0AE: not on the flood risk listCA4 0AF: not on the flood risk listCA4 0AG: not on the flood risk listCA4 0AH: not on the flood risk listCA4 0AJ: not on the flood risk listCA4 0AL: not on the flood risk listCA4 0AN: not on the flood risk listCA4 0AP: not on the flood risk listCA4 0AQ: not on the flood risk listCA4 0AR: not on the flood risk listCA4 0AS: not on the flood risk listCA4 0AT: not on the flood risk listCA4 0AW: not on the flood risk listCA4 0AX: not on the flood risk listCA4 0AY: not on the flood risk listCA4 0AZ: not on the flood risk listCA4 0BG: not on the flood risk listCA4 0BH: not on the flood risk listCA4 0BJ: not on the flood risk listCA4 0BL: not on the flood risk listCA4 0BQ: not on the flood risk listCA4 0BS: not on the flood risk listCA4 0BU: not on the flood risk listCA4 0BW: not on the flood risk listCA4 0DA: not on the flood risk listCA4 0DB: not on the flood risk listCA4 0DD: not on the flood risk listCA4 0DE: not on the flood risk listCA4 0DF: not on the flood risk listCA4 0DG: not on the flood risk listCA4 0DL: not on the flood risk listCA4 0EH: not on the flood risk listCA4 0EJ: not on the flood risk listCA4 0EN: not on the flood risk listCA4 0EP: not on the flood risk listCA4 0EQ: not on the flood risk listCA4 0ER: not on the flood risk listCA4 0ES: not on the flood risk listCA4 0ET: not on the flood risk listCA4 0EW: not on the flood risk listCA4 0GZ: not on the flood risk listCA4 0HL: not on the flood risk listCA4 0HP: not on the flood risk listCA4 0HQ: not on the flood risk listCA4 0HR: not on the flood risk listCA4 0HS: not on the flood risk listCA4 0HU: not on the flood risk listCA4 0HW: not on the flood risk listCA4 0HY: not on the flood risk listCA4 0HZ: not on the flood risk listCA4 0JA: not on the flood risk listCA4 0JD: not on the flood risk listCA4 0JE: not on the flood risk listCA4 0JF: not on the flood risk listCA4 0JH: not on the flood risk listCA4 0JP: not on the flood risk listCA4 0JS: not on the flood risk listCA4 0JT: not on the flood risk listCA4 0JU: not on the flood risk listCA4 0LA: not on the flood risk listCA4 0LB: not on the flood risk listCA4 0LD: not on the flood risk listCA4 0LE: not on the flood risk listCA4 0LF: not on the flood risk listCA4 0LG: not on the flood risk listCA4 0LH: not on the flood risk listCA4 0LJ: not on the flood risk listCA4 0LN: not on the flood risk listCA4 0LQ: not on the flood risk listCA4 0LR: not on the flood risk listCA4 0LS: not on the flood risk listCA4 0LT: not on the flood risk listCA4 0LU: not on the flood risk listCA4 0LY: not on the flood risk listCA4 0LZ: not on the flood risk listCA4 0NA: not on the flood risk listCA4 0NB: not on the flood risk listCA4 0ND: not on the flood risk listCA4 0NF: not on the flood risk listCA4 0NJ: not on the flood risk listCA4 0NL: not on the flood risk listCA4 0NN: not on the flood risk listCA4 0NR: not on the flood risk listCA4 0NS: not on the flood risk listCA4 0NT: not on the flood risk listCA4 0NU: not on the flood risk listCA4 0NX: not on the flood risk listCA4 0PA: not on the flood risk listCA4 0PG: not on the flood risk listCA4 0PH: not on the flood risk listCA4 0PN: not on the flood risk listCA4 0PP: not on the flood risk listCA4 0PQ: not on the flood risk listCA4 0PR: not on the flood risk listCA4 0PS: not on the flood risk listCA4 0PT: not on the flood risk listCA4 0PW: not on the flood risk listCA4 0PY: not on the flood risk listCA4 0PZ: not on the flood risk listCA4 0QA: not on the flood risk listCA4 0QE: not on the flood risk listCA4 0QF: not on the flood risk listCA4 0QH: not on the flood risk listCA4 0QN: not on the flood risk listCA4 0QP: not on the flood risk listCA4 0QQ: not on the flood risk listCA4 0QR: not on the flood risk listCA4 0QS: not on the flood risk listCA4 0QZ: not on the flood risk listCA4 0RA: not on the flood risk listCA4 0RE: not on the flood risk listCA4 0RF: not on the flood risk listCA4 0RG: not on the flood risk listCA4 0RH: not on the flood risk listCA4 0RJ: not on the flood risk listCA4 0RL: not on the flood risk listCA4 0RN: not on the flood risk listCA4 0RP: not on the flood risk listCA4 0RR: not on the flood risk listCA4 0RS: not on the flood risk listCA4 0RT: not on the flood risk listCA4 0RY: not on the flood risk listCA4 0RZ: not on the flood risk listCA4 0SA: not on the flood risk listCA4 8AA: not on the flood risk listCA4 8AB: not on the flood risk listCA4 8AD: not on the flood risk listCA4 8AF: not on the flood risk listCA4 8AG: not on the flood risk listCA4 8AJ: not on the flood risk listCA4 8AL: not on the flood risk listCA4 8AR: not on the flood risk listCA4 8AT: not on the flood risk listCA4 8AU: not on the flood risk listCA4 8AW: not on the flood risk listCA4 8AY: not on the flood risk listCA4 8BA: not on the flood risk listCA4 8BD: not on the flood risk listCA4 8BE: not on the flood risk listCA4 8BG: not on the flood risk listCA4 8BH: not on the flood risk listCA4 8BJ: not on the flood risk listCA4 8BL: not on the flood risk listCA4 8BN: not on the flood risk listCA4 8BP: not on the flood risk listCA4 8DA: not on the flood risk listCA4 8DE: not on the flood risk listCA4 8DF: not on the flood risk listCA4 8DG: not on the flood risk listCA4 8DH: not on the flood risk listCA4 8DJ: not on the flood risk listCA4 8DL: not on the flood risk listCA4 8DP: not on the flood risk listCA4 8DR: not on the flood risk listCA4 8DT: not on the flood risk listCA4 8DU: not on the flood risk listCA4 8DZ: not on the flood risk listCA4 8EB: not on the flood risk listCA4 8EE: not on the flood risk listCA4 8EN: not on the flood risk listCA4 8EQ: not on the flood risk listCA4 8ER: not on the flood risk listCA4 8ES: not on the flood risk listCA4 8EW: not on the flood risk listCA4 8EX: not on the flood risk listCA4 8EY: not on the flood risk listCA4 8EZ: not on the flood risk listCA4 8FA: not on the flood risk listCA4 8FG: not on the flood risk listCA4 8FJ: not on the flood risk listCA4 8FP: not on the flood risk listCA4 8FQ: not on the flood risk listCA4 8FS: not on the flood risk listCA4 8FU: not on the flood risk listCA4 8FW: not on the flood risk listCA4 8FZ: not on the flood risk listCA4 8GX: not on the flood risk listCA4 8GY: not on the flood risk listCA4 8HD: not on the flood risk listCA4 8HH: not on the flood risk listCA4 8HJ: not on the flood risk listCA4 8HU: not on the flood risk listCA4 8HX: not on the flood risk listCA4 8HZ: not on the flood risk listCA4 8JA: not on the flood risk listCA4 8JB: not on the flood risk listCA4 8JF: not on the flood risk listCA4 8JP: not on the flood risk listCA4 8JQ: not on the flood risk listCA4 8JT: not on the flood risk listCA4 8JX: not on the flood risk listCA4 8JY: not on the flood risk listCA4 8LB: not on the flood risk listCA4 8LD: not on the flood risk listCA4 8LG: not on the flood risk listCA4 8LL: not on the flood risk listCA4 8LN: not on the flood risk listCA4 8LP: not on the flood risk listCA4 8LS: not on the flood risk listCA4 8LU: not on the flood risk listCA4 8NB: not on the flood risk listCA4 8ND: not on the flood risk listCA4 8NH: not on the flood risk listCA4 8NP: not on the flood risk listCA4 8NT: not on the flood risk listCA4 8PA: not on the flood risk listCA4 8PD: not on the flood risk listCA4 8PE: not on the flood risk listCA4 8PJ: not on the flood risk listCA4 8PL: not on the flood risk listCA4 8PR: not on the flood risk listCA4 8PT: not on the flood risk listCA4 8PX: not on the flood risk listCA4 8PZ: not on the flood risk listCA4 8QA: not on the flood risk listCA4 8QB: not on the flood risk listCA4 8QD: not on the flood risk listCA4 8QE: not on the flood risk listCA4 8QF: not on the flood risk listCA4 8QJ: not on the flood risk listCA4 8QP: not on the flood risk listCA4 8QQ: not on the flood risk listCA4 8QS: not on the flood risk listCA4 8QT: not on the flood risk listCA4 8QU: not on the flood risk listCA4 8QX: not on the flood risk listCA4 8RA: not on the flood risk listCA4 8RF: not on the flood risk listCA4 8RH: not on the flood risk listCA4 8RP: not on the flood risk listCA4 8RY: not on the flood risk listCA4 9AQ: not on the flood risk listCA4 9AS: not on the flood risk listCA4 9PE: not on the flood risk listCA4 9PG: not on the flood risk listCA4 9PJ: not on the flood risk listCA4 9PL: not on the flood risk listCA4 9PN: not on the flood risk listCA4 9PP: not on the flood risk listCA4 9PR: not on the flood risk listCA4 9PW: not on the flood risk listCA4 9QA: not on the flood risk listCA4 9QN: not on the flood risk listCA4 9QP: not on the flood risk listCA4 9QR: not on the flood risk listCA4 9QS: not on the flood risk listCA4 9QW: not on the flood risk listCA4 9QZ: not on the flood risk listCA4 9RA: not on the flood risk listCA4 9RB: not on the flood risk listCA4 9RD: not on the flood risk listCA4 9RE: not on the flood risk listCA4 9RF: not on the flood risk listCA4 9RG: not on the flood risk listCA4 9RJ: not on the flood risk listCA4 9RL: not on the flood risk listCA4 9RN: not on the flood risk listCA4 9RP: not on the flood risk listCA4 9RQ: not on the flood risk listCA4 9RR: not on the flood risk listCA4 9RS: not on the flood risk listCA4 9RT: not on the flood risk listCA4 9RW: not on the flood risk listCA4 9SE: not on the flood risk listCA4 9SF: not on the flood risk listCA4 9SH: not on the flood risk listCA4 9SJ: not on the flood risk listCA4 9SN: not on the flood risk listCA4 9SP: not on the flood risk listCA4 9SQ: not on the flood risk listCA4 9SR: not on the flood risk listCA4 9SX: not on the flood risk listCA4 9SY: not on the flood risk listCA4 9SZ: not on the flood risk listCA4 9TA: not on the flood risk listCA4 9TB: not on the flood risk listCA4 9TF: not on the flood risk listCA4 9TG: not on the flood risk listCA4 9TH: not on the flood risk listCA4 9TJ: not on the flood risk listCA4 9TN: not on the flood risk listCA4 9TQ: not on the flood risk listCA4 9TR: not on the flood risk listCA4 9TS: not on the flood risk listCA4 9TU: not on the flood risk listCA4 9TW: not on the flood risk listCA4 0EL: low flood risk at worstCA4 0HB: low flood risk at worstCA4 0HN: low flood risk at worstCA4 0PE: low flood risk at worstCA4 0PJ: low flood risk at worstCA4 8BX: low flood risk at worstCA4 8ED: low flood risk at worstCA4 8LA: low flood risk at worstCA4 8LR: low flood risk at worstCA4 8QN: low flood risk at worstCA4 8QY: low flood risk at worstCA4 8RB: low flood risk at worstCA4 8RG: low flood risk at worstCA4 9PY: low flood risk at worstCA4 0HA: medium flood risk at worstCA4 0JJ: medium flood risk at worstCA4 0QG: medium flood risk at worstCA4 0QW: medium flood risk at worstCA4 8EF: medium flood risk at worstCA4 8EG: medium flood risk at worstCA4 8NE: medium flood risk at worstCA4 8NF: medium flood risk at worstCA4 8NJ: medium flood risk at worstCA4 8NL: medium flood risk at worstCA4 9SL: medium flood risk at worstCA4 9TP: medium flood risk at worstCA4 0EU: high flood riskCA4 0LX: high flood riskCA4 0NG: high flood riskCA4 0PD: high flood riskCA4 8AQ: high flood riskCA4 8AP: high flood riskCA4 8DD: high flood riskCA4 8FR: high flood riskCA4 8BZ: high flood riskCA4 8FN: high flood riskCA4 8HA: high flood riskCA4 8HB: high flood riskCA4 8HR: high flood riskCA4 8LJ: high flood riskCA4 8NR: high flood riskCA4 8NS: high flood riskCA4 8PG: high flood riskCA4 8RZ: high flood riskCA4 8RE: high flood riskCA4 8RJ: high flood riskCA4 8RL: high flood riskCA4 8RN: high flood riskCA4 8RR: high flood riskCA4 8RT: high flood riskCA4 8SA: high flood riskCA4 9PB: high flood riskCA4 9PD: high flood riskCA4 9PQ: high flood riskCA4 9PZ: high flood riskCA4 9QD: high flood riskCA4 9QQ: high flood riskCA4 9QY: high flood riskCA4 9RH: high flood riskCA4 9RU: high flood riskCA4 9RY: high flood riskCA4 9RZ: high flood riskCA4 9SG: high flood riskCA4 9ST: high flood risk Carlisle 8 postcodes at high or medium risk, outlined: this goes to CA4 8SA, the one with most homes and businesses at high risk8 postcodes at high or medium risk Map of every postcode in CA4, by flood risk Of the 478 postcodes in CA4 that ONS places, 40 have a home or business at high risk, 12 are at medium risk at worst, 19 are at low risk at worst and 407 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 8 postcodes at high or medium risk. Places named: Carlisle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. M6A6 Carlisle
  • A home or business at high risk: 40
  • At medium risk at worst: 12
  • At low risk at worst: 19
  • At very low risk only: 0
  • Not on the at-risk list: 407
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 478 postcodes in CA4 that ONS places, 40 have a home or business at high risk, 12 are at medium risk at worst, 19 are at low risk at worst and 407 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 260 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 54.8479, longitude -2.8318. 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

40 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

CA4 9RZ15 at high riskCA4 8SA14 at high riskCA4 8RT12 at high riskCA4 8NR9 at high riskCA4 8FN7 at high riskCA4 8AP6 at high riskCA4 8RN6 at high riskCA4 8RE4 at high riskCA4 8FR4 at high riskCA4 8NS4 at high riskCA4 8RL3 at high riskCA4 8RZ2 at high risk

Where the postcodes at high or medium risk lie together

  • 8 postcodes at high or medium risk, outlined on the map. CA4 8SA, is the one with most homes and businesses at high risk.

What broadband can you get in CA4?

Ofcom reports on 472 of the 478 postcodes in CA4. At 241 of them every home and business can get gigabit broadband, and at 22 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit241 of 472
Postcodes where every home can get superfast364 of 472
Postcodes where some cannot get decent broadband22 of 472

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 CA4 at risk of flooding?

71 of the 478 postcodes in CA4 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 183 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 71 of 478 postcodes High: 120Medium: 63Low: 125

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 CA4?

Homes in CA4 sold for a typical £298,000 in the 12 months to August 2026, across 145 sales, up 7.9% on the 12 months before, HM Land Registry's figures show.

£298,000 typical price, the 12 months to August 2026
12 months to August 2025
£276,250
12 months to August 2026
£298,000

▲ up 7.9% on the 12 months before

Detached£399,950 69 sales
Semi-detached£245,000 41 sales
Terraced£210,000 26 sales
Flat or maisonette£216,000 9 sales

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 CA4

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

CA4 0181 postcodesCA4 8213 postcodesCA4 984 postcodes
UK postcode format explained

Places in CA4

We list no town or village for CA4. 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 CA4 postcode is here, under its sector above.

Who covers CA4

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

  • Carlisle272
  • Penrith and Solway206

Police force areas

  • Cumbria478

Next to CA4

CA3 postcode district CA5 postcode district All CA districts

"Next to" is by number: the districts before and after CA4 in the CA area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.