KA1 1 postcode sector in the KA1 district

KA1 1 is a sector of the KA1 district: every postcode that starts KA1 1. It has 133 postcodes in use, 10 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

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Every postcode in the KA1 1 sector, and which are new since 2020

Map of every postcode in the KA1 1 sector, by new since 2020 Of the 133 postcodes in the KA1 1 sector that ONS places, 2 are new since 2020 and 131 were in use before 2020. Places named: Kilmarnock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. KA1 1AD: before 2020KA1 1AE: before 2020KA1 1AF: before 2020KA1 1AH: before 2020KA1 1BA: before 2020KA1 1BB: before 2020KA1 1BD: before 2020KA1 1BE: before 2020KA1 1BG: before 2020KA1 1BH: before 2020KA1 1BL: before 2020KA1 1BS: before 2020KA1 1BW: before 2020KA1 1DB: before 2020KA1 1DD: before 2020KA1 1DG: before 2020KA1 1DH: before 2020KA1 1DU: before 2020KA1 1DZ: before 2020KA1 1ED: before 2020KA1 1EG: before 2020KA1 1EP: before 2020KA1 1EQ: before 2020KA1 1ER: before 2020KA1 1GB: before 2020KA1 1HA: before 2020KA1 1HJ: before 2020KA1 1HN: before 2020KA1 1HU: before 2020KA1 1HW: before 2020KA1 1HX: before 2020KA1 1HZ: before 2020KA1 1JB: before 2020KA1 1JG: before 2020KA1 1JH: before 2020KA1 1JN: before 2020KA1 1JU: before 2020KA1 1LL: before 2020KA1 1LN: before 2020KA1 1LR: before 2020KA1 1LT: before 2020KA1 1LU: before 2020KA1 1NP: before 2020KA1 1PA: before 2020KA1 1PB: before 2020KA1 1PD: before 2020KA1 1PG: before 2020KA1 1PH: before 2020KA1 1PL: before 2020KA1 1PT: before 2020KA1 1QD: before 2020KA1 1QE: before 2020KA1 1QF: before 2020KA1 1QL: before 2020KA1 1QS: before 2020KA1 1QW: before 2020KA1 1QY: before 2020KA1 1RA: before 2020KA1 1RD: before 2020KA1 1RE: before 2020KA1 1RF: before 2020KA1 1RG: before 2020KA1 1RH: before 2020KA1 1RJ: before 2020KA1 1RL: before 2020KA1 1RP: before 2020KA1 1RQ: before 2020KA1 1RR: before 2020KA1 1RS: before 2020KA1 1RU: before 2020KA1 1RX: before 2020KA1 1RY: before 2020KA1 1RZ: before 2020KA1 1SA: before 2020KA1 1SB: before 2020KA1 1SD: before 2020KA1 1SE: before 2020KA1 1SF: before 2020KA1 1SG: before 2020KA1 1SH: before 2020KA1 1SJ: before 2020KA1 1SN: before 2020KA1 1SP: before 2020KA1 1SQ: before 2020KA1 1SR: before 2020KA1 1SS: before 2020KA1 1ST: before 2020KA1 1SU: before 2020KA1 1SW: before 2020KA1 1SY: before 2020KA1 1SZ: before 2020KA1 1TA: before 2020KA1 1TB: before 2020KA1 1TD: before 2020KA1 1TE: before 2020KA1 1TF: before 2020KA1 1TG: before 2020KA1 1TH: before 2020KA1 1TJ: before 2020KA1 1TL: before 2020KA1 1TN: before 2020KA1 1TP: before 2020KA1 1TQ: before 2020KA1 1TS: before 2020KA1 1TT: before 2020KA1 1TU: before 2020KA1 1TW: before 2020KA1 1TX: before 2020KA1 1TY: before 2020KA1 1TZ: before 2020KA1 1UA: before 2020KA1 1UB: before 2020KA1 1UD: before 2020KA1 1UE: before 2020KA1 1UF: before 2020KA1 1UG: before 2020KA1 1UH: before 2020KA1 1UJ: before 2020KA1 1UL: before 2020KA1 1UN: before 2020KA1 1UP: before 2020KA1 1UQ: before 2020KA1 1UR: before 2020KA1 1UT: before 2020KA1 1UU: before 2020KA1 1UW: before 2020KA1 1UX: before 2020KA1 1UY: before 2020KA1 1UZ: before 2020KA1 1QB: new since 2020KA1 1QH: new since 2020 Kilmarnock Map of every postcode in the KA1 1 sector, by new since 2020 Of the 133 postcodes in the KA1 1 sector that ONS places, 2 are new since 2020 and 131 were in use before 2020. Places named: Kilmarnock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Kilmarnock
  • New since 2020: 2
  • In use before 2020: 131

Of the 133 postcodes in the KA1 1 sector that ONS places, 2 are new since 2020 and 131 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 2 newest postcodes

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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