KA20 4 postcode sector in the KA20 district

KA20 4 is a sector of the KA20 district: every postcode that starts KA20 4. It has 107 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the KA20 4 sector, and which are new since 2020

Map of every postcode in the KA20 4 sector, by new since 2020 Of the 107 postcodes in the KA20 4 sector that ONS places, 107 were in use before 2020. Places named: Saltcoats and Stevenston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A78A738 KA20 4AA: before 2020KA20 4AB: before 2020KA20 4AD: before 2020KA20 4AE: before 2020KA20 4AF: before 2020KA20 4AG: before 2020KA20 4AH: before 2020KA20 4AJ: before 2020KA20 4AL: before 2020KA20 4AN: before 2020KA20 4AP: before 2020KA20 4AQ: before 2020KA20 4AR: before 2020KA20 4AS: before 2020KA20 4AT: before 2020KA20 4AU: before 2020KA20 4AW: before 2020KA20 4BA: before 2020KA20 4BB: before 2020KA20 4BD: before 2020KA20 4BE: before 2020KA20 4BG: before 2020KA20 4BH: before 2020KA20 4BJ: before 2020KA20 4BL: before 2020KA20 4BN: before 2020KA20 4BP: before 2020KA20 4BQ: before 2020KA20 4BS: before 2020KA20 4BT: before 2020KA20 4BU: before 2020KA20 4BW: before 2020KA20 4BX: before 2020KA20 4DA: before 2020KA20 4DE: before 2020KA20 4DF: before 2020KA20 4DG: before 2020KA20 4DH: before 2020KA20 4DJ: before 2020KA20 4DL: before 2020KA20 4DN: before 2020KA20 4DP: before 2020KA20 4DQ: before 2020KA20 4DR: before 2020KA20 4DS: before 2020KA20 4DT: before 2020KA20 4DU: before 2020KA20 4DW: before 2020KA20 4DX: before 2020KA20 4DY: before 2020KA20 4DZ: before 2020KA20 4EA: before 2020KA20 4EB: before 2020KA20 4ED: before 2020KA20 4EE: before 2020KA20 4EF: before 2020KA20 4EG: before 2020KA20 4EH: before 2020KA20 4EJ: before 2020KA20 4EL: before 2020KA20 4EQ: before 2020KA20 4ER: before 2020KA20 4ET: before 2020KA20 4EU: before 2020KA20 4EX: before 2020KA20 4EY: before 2020KA20 4EZ: before 2020KA20 4HA: before 2020KA20 4HB: before 2020KA20 4HD: before 2020KA20 4HE: before 2020KA20 4HF: before 2020KA20 4HG: before 2020KA20 4HH: before 2020KA20 4HJ: before 2020KA20 4HL: before 2020KA20 4HN: before 2020KA20 4HP: before 2020KA20 4HQ: before 2020KA20 4HR: before 2020KA20 4HS: before 2020KA20 4HT: before 2020KA20 4HU: before 2020KA20 4HW: before 2020KA20 4HX: before 2020KA20 4HY: before 2020KA20 4HZ: before 2020KA20 4JA: before 2020KA20 4JB: before 2020KA20 4JD: before 2020KA20 4JE: before 2020KA20 4JF: before 2020KA20 4JG: before 2020KA20 4JH: before 2020KA20 4JJ: before 2020KA20 4JL: before 2020KA20 4JN: before 2020KA20 4JP: before 2020KA20 4JQ: before 2020KA20 4JS: before 2020KA20 4JW: before 2020KA20 4JX: before 2020KA20 4JZ: before 2020KA20 4LA: before 2020KA20 4LB: before 2020KA20 4LE: before 2020KA20 4LF: before 2020 Saltcoats and Stevenston Map of every postcode in the KA20 4 sector, by new since 2020 Of the 107 postcodes in the KA20 4 sector that ONS places, 107 were in use before 2020. Places named: Saltcoats and Stevenston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A738 Saltcoats and Stevenston
  • New since 2020: 0
  • In use before 2020: 107

Of the 107 postcodes in the KA20 4 sector that ONS places, 107 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. 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; 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

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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