KA20 postcode district: Stevenston and around, North Ayrshire

KA20 is a postcode district in Scotland, with 264 postcodes in use in 2 sectors. It has postcodes in Stevenston, Kilwinning and Saltcoats. Its council is North Ayrshire.

Postcodes in use
264
Sectors
2
Council
North Ayrshire
Places
3 places

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

Every postcode in KA20, and which are new since 2020

Map of every postcode in KA20, by new since 2020 Of the 264 postcodes in KA20 that ONS places, 6 are new since 2020 and 258 were in use before 2020. 3 postcodes lie beyond the edge and are listed under the map. Places named: Stevenston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A78A738 KA20 3AB: before 2020KA20 3AE: before 2020KA20 3AF: before 2020KA20 3AG: before 2020KA20 3AJ: before 2020KA20 3AL: before 2020KA20 3AN: before 2020KA20 3AP: before 2020KA20 3AQ: before 2020KA20 3AR: before 2020KA20 3AS: before 2020KA20 3AT: before 2020KA20 3AU: before 2020KA20 3AW: before 2020KA20 3AX: before 2020KA20 3AY: before 2020KA20 3AZ: before 2020KA20 3BA: before 2020KA20 3BB: before 2020KA20 3BD: before 2020KA20 3BE: before 2020KA20 3BF: before 2020KA20 3BG: before 2020KA20 3BH: before 2020KA20 3BJ: before 2020KA20 3BL: before 2020KA20 3BN: before 2020KA20 3BP: before 2020KA20 3BQ: before 2020KA20 3BS: before 2020KA20 3BT: before 2020KA20 3BU: before 2020KA20 3BW: before 2020KA20 3BX: before 2020KA20 3BY: before 2020KA20 3BZ: before 2020KA20 3DA: before 2020KA20 3DB: before 2020KA20 3DD: before 2020KA20 3DE: before 2020KA20 3DF: before 2020KA20 3DG: before 2020KA20 3DH: before 2020KA20 3DL: before 2020KA20 3DN: before 2020KA20 3DP: before 2020KA20 3DQ: before 2020KA20 3DR: before 2020KA20 3DS: before 2020KA20 3DT: before 2020KA20 3DU: before 2020KA20 3DX: before 2020KA20 3DY: before 2020KA20 3DZ: before 2020KA20 3EA: before 2020KA20 3EB: before 2020KA20 3ED: before 2020KA20 3EE: before 2020KA20 3EG: before 2020KA20 3EH: before 2020KA20 3EJ: before 2020KA20 3EL: before 2020KA20 3EN: before 2020KA20 3ER: before 2020KA20 3ES: before 2020KA20 3ET: before 2020KA20 3EU: before 2020KA20 3EX: before 2020KA20 3HA: before 2020KA20 3HB: before 2020KA20 3HD: before 2020KA20 3HE: before 2020KA20 3HF: before 2020KA20 3HG: before 2020KA20 3HH: before 2020KA20 3HJ: before 2020KA20 3HL: before 2020KA20 3HP: before 2020KA20 3HQ: before 2020KA20 3HS: before 2020KA20 3HT: before 2020KA20 3HU: before 2020KA20 3HW: before 2020KA20 3HX: before 2020KA20 3HY: before 2020KA20 3HZ: before 2020KA20 3JA: before 2020KA20 3JB: before 2020KA20 3JD: before 2020KA20 3JE: before 2020KA20 3JF: before 2020KA20 3JG: before 2020KA20 3JJ: before 2020KA20 3JL: before 2020KA20 3JN: before 2020KA20 3JP: before 2020KA20 3JQ: before 2020KA20 3JR: before 2020KA20 3JS: before 2020KA20 3JT: before 2020KA20 3JU: before 2020KA20 3JW: before 2020KA20 3JY: before 2020KA20 3JZ: before 2020KA20 3LA: before 2020KA20 3LB: before 2020KA20 3LD: before 2020KA20 3LE: before 2020KA20 3LF: before 2020KA20 3LG: before 2020KA20 3LH: before 2020KA20 3LJ: before 2020KA20 3LL: before 2020KA20 3LP: before 2020KA20 3LQ: before 2020KA20 3LR: before 2020KA20 3LU: before 2020KA20 3LW: before 2020KA20 3LY: before 2020KA20 3LZ: before 2020KA20 3NA: before 2020KA20 3NB: before 2020KA20 3NJ: before 2020KA20 3NL: before 2020KA20 3NN: before 2020KA20 3NP: before 2020KA20 3NR: before 2020KA20 3NS: before 2020KA20 3NT: before 2020KA20 3NU: before 2020KA20 3NW: before 2020KA20 3NX: before 2020KA20 3NY: before 2020KA20 3PA: before 2020KA20 3PB: before 2020KA20 3PD: before 2020KA20 3PE: before 2020KA20 3PF: before 2020KA20 3PG: before 2020KA20 3PH: before 2020KA20 3PJ: before 2020KA20 3PL: before 2020KA20 3PN: before 2020KA20 3PP: before 2020KA20 3PQ: before 2020KA20 3PR: before 2020KA20 3PU: before 2020KA20 3PW: before 2020KA20 3WG: before 2020KA20 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 4JS: before 2020KA20 4JW: before 2020KA20 4JX: before 2020KA20 4JZ: before 2020KA20 4LA: before 2020KA20 4LE: before 2020KA20 4LF: before 2020KA20 3FA: new since 2020KA20 3FB: new since 2020KA20 3FD: new since 2020KA20 3FE: new since 2020KA20 3JX: new since 2020 Stevenston Map of every postcode in KA20, by new since 2020 Of the 264 postcodes in KA20 that ONS places, 6 are new since 2020 and 258 were in use before 2020. 3 postcodes lie beyond the edge and are listed under the map. Places named: Stevenston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Stevenston
  • New since 2020: 6
  • In use before 2020: 258

Of the 264 postcodes in KA20 that ONS places, 6 are new since 2020 and 258 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.

The middle of its postcodes: latitude 55.6413, longitude -4.7508. 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; 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 5 newest postcodes

KA20 3FESeptember 2024KA20 3FDMay 2023KA20 3FBNovember 2022KA20 3WUMarch 2022KA20 3FASeptember 2021

3 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

KA20 3LNKA20 3WUKA20 4LB

What broadband can you get in KA20?

Ofcom reports on 263 of the 264 postcodes in KA20. At 214 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit214 of 263
Postcodes where every home can get superfast253 of 263

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

Postcodes in KA20

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

KA20 3157 postcodesKA20 4107 postcodes
UK postcode format explained

Places in KA20

Towns and villages with postcodes in KA20, and how many each has here.

Stevenston postcodes,250Kilwinning postcodes,2Saltcoats postcodes,1

Who covers KA20

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

  • North Ayrshire and Arran264

Police force areas

  • Scotland264

Next to KA20

KA19 postcode district KA21 postcode district All KA districts Stevenston postcodes

"Next to" is by number: the districts before and after KA20 in the KA area.

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