CA1 1 postcode sector in the CA1 district

CA1 1 is a sector of the CA1 district: every postcode that starts CA1 1. It has 123 postcodes in use, 13 of them large-user postcodes. 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 CA1 1 sector, by flood risk

Map of every postcode in the CA1 1 sector, by flood risk Of the 123 postcodes in the CA1 1 sector that ONS places, 3 have a home or business at high risk, 29 are at low risk at worst and 91 are not on the Environment Agency's at-risk list. Places named: Carlisle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A7 CA1 1AA: not on the flood risk listCA1 1AB: not on the flood risk listCA1 1AE: not on the flood risk listCA1 1AF: not on the flood risk listCA1 1AG: not on the flood risk listCA1 1AJ: not on the flood risk listCA1 1BA: not on the flood risk listCA1 1BB: not on the flood risk listCA1 1BE: not on the flood risk listCA1 1BG: not on the flood risk listCA1 1BJ: not on the flood risk listCA1 1BP: not on the flood risk listCA1 1BZ: not on the flood risk listCA1 1DB: not on the flood risk listCA1 1DE: not on the flood risk listCA1 1DH: not on the flood risk listCA1 1DJ: not on the flood risk listCA1 1DN: not on the flood risk listCA1 1DP: not on the flood risk listCA1 1DQ: not on the flood risk listCA1 1DR: not on the flood risk listCA1 1DU: not on the flood risk listCA1 1EA: not on the flood risk listCA1 1EB: not on the flood risk listCA1 1EE: not on the flood risk listCA1 1EJ: not on the flood risk listCA1 1EL: not on the flood risk listCA1 1ER: not on the flood risk listCA1 1EX: not on the flood risk listCA1 1HB: not on the flood risk listCA1 1HE: not on the flood risk listCA1 1HF: not on the flood risk listCA1 1HH: not on the flood risk listCA1 1HJ: not on the flood risk listCA1 1HL: not on the flood risk listCA1 1HQ: not on the flood risk listCA1 1HR: not on the flood risk listCA1 1HT: not on the flood risk listCA1 1HZ: not on the flood risk listCA1 1JA: not on the flood risk listCA1 1JN: not on the flood risk listCA1 1JX: not on the flood risk listCA1 1JY: not on the flood risk listCA1 1JZ: not on the flood risk listCA1 1LB: not on the flood risk listCA1 1LE: not on the flood risk listCA1 1NG: not on the flood risk listCA1 1NL: not on the flood risk listCA1 1NS: not on the flood risk listCA1 1NT: not on the flood risk listCA1 1NX: not on the flood risk listCA1 1PA: not on the flood risk listCA1 1PB: not on the flood risk listCA1 1PE: not on the flood risk listCA1 1PN: not on the flood risk listCA1 1PP: not on the flood risk listCA1 1PQ: not on the flood risk listCA1 1PT: not on the flood risk listCA1 1PX: not on the flood risk listCA1 1PY: not on the flood risk listCA1 1QD: not on the flood risk listCA1 1QL: not on the flood risk listCA1 1QN: not on the flood risk listCA1 1QP: not on the flood risk listCA1 1QS: not on the flood risk listCA1 1QW: not on the flood risk listCA1 1QX: not on the flood risk listCA1 1QY: not on the flood risk listCA1 1RD: not on the flood risk listCA1 1RL: not on the flood risk listCA1 1RN: not on the flood risk listCA1 1RP: not on the flood risk listCA1 1RS: not on the flood risk listCA1 1RU: not on the flood risk listCA1 1RX: not on the flood risk listCA1 1RY: not on the flood risk listCA1 1RZ: not on the flood risk listCA1 1SF: not on the flood risk listCA1 1SG: not on the flood risk listCA1 1SH: not on the flood risk listCA1 1SJ: not on the flood risk listCA1 1SL: not on the flood risk listCA1 1SR: not on the flood risk listCA1 1SW: not on the flood risk listCA1 1TB: not on the flood risk listCA1 1TD: not on the flood risk listCA1 1TF: not on the flood risk listCA1 1TT: not on the flood risk listCA1 1HP: low flood risk at worstCA1 1HS: low flood risk at worstCA1 1JB: low flood risk at worstCA1 1JD: low flood risk at worstCA1 1JP: low flood risk at worstCA1 1JS: low flood risk at worstCA1 1JT: low flood risk at worstCA1 1JU: low flood risk at worstCA1 1LA: low flood risk at worstCA1 1LF: low flood risk at worstCA1 1LG: low flood risk at worstCA1 1LH: low flood risk at worstCA1 1LJ: low flood risk at worstCA1 1LL: low flood risk at worstCA1 1LN: low flood risk at worstCA1 1LP: low flood risk at worstCA1 1LQ: low flood risk at worstCA1 1LR: low flood risk at worstCA1 1LT: low flood risk at worstCA1 1LU: low flood risk at worstCA1 1LW: low flood risk at worstCA1 1LX: low flood risk at worstCA1 1LY: low flood risk at worstCA1 1LZ: low flood risk at worstCA1 1NB: low flood risk at worstCA1 1NE: low flood risk at worstCA1 1SE: low flood risk at worstCA1 1SN: low flood risk at worstCA1 1SQ: low flood risk at worstCA1 1JG: high flood riskCA1 1JQ: high flood riskCA1 1LS: high flood risk Carlisle Map of every postcode in the CA1 1 sector, by flood risk Of the 123 postcodes in the CA1 1 sector that ONS places, 3 have a home or business at high risk, 29 are at low risk at worst and 91 are not on the Environment Agency's at-risk list. Places named: Carlisle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Carlisle
  • A home or business at high risk: 3
  • At medium risk at worst: 0
  • At low risk at worst: 29
  • At very low risk only: 0
  • Not on the at-risk list: 91

Of the 123 postcodes in the CA1 1 sector that ONS places, 3 have a home or business at high risk, 29 are at low risk at worst and 91 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.

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 do homes sell for in CA1 1?

Homes in CA1 1 sold for a typical £267,500 in the 12 months to August 2026, across 34 sales, up 7% on the 12 months before, HM Land Registry's figures show.

£267,500 typical price, the 12 months to August 2026
£250,000 12 months to August 2025
▲ up 7% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £317,500 6 sales
  • Terraced £287,500 16 sales
  • Flat or maisonette £114,000 11 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 CA1 1. 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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