SM3 postcode district: Sutton and around

SM3 is a postcode district in England, with 379 postcodes in use in 2 sectors. It has postcodes in Sutton and Merton. It is split between 3 councils: Sutton (372 postcodes), Merton (4) and Epsom and Ewell (3). 3 of its 379 postcodes are in Surrey. ONS lists no county for the other 376.

Postcodes in use
379
Sectors
2
Councils
3 councils
Places
2 places

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

Every postcode in SM3, by flood risk

Map of every postcode in SM3, by flood risk Of the 379 postcodes in SM3 that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 10 are at low risk at worst and 362 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Stonecot, Cheam. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. SM3 8AA: not on the flood risk listSM3 8AB: not on the flood risk listSM3 8AD: not on the flood risk listSM3 8AE: not on the flood risk listSM3 8AF: not on the flood risk listSM3 8AG: not on the flood risk listSM3 8AH: not on the flood risk listSM3 8AJ: not on the flood risk listSM3 8AL: not on the flood risk listSM3 8AN: not on the flood risk listSM3 8AP: not on the flood risk listSM3 8AQ: not on the flood risk listSM3 8AR: not on the flood risk listSM3 8AS: not on the flood risk listSM3 8AU: not on the flood risk listSM3 8AW: not on the flood risk listSM3 8AY: not on the flood risk listSM3 8AZ: not on the flood risk listSM3 8BD: not on the flood risk listSM3 8BH: not on the flood risk listSM3 8BL: not on the flood risk listSM3 8BN: not on the flood risk listSM3 8BS: not on the flood risk listSM3 8BU: not on the flood risk listSM3 8BW: not on the flood risk listSM3 8BZ: not on the flood risk listSM3 8DD: not on the flood risk listSM3 8DE: not on the flood risk listSM3 8DF: not on the flood risk listSM3 8DH: not on the flood risk listSM3 8DJ: not on the flood risk listSM3 8DL: not on the flood risk listSM3 8DN: not on the flood risk listSM3 8DP: not on the flood risk listSM3 8DR: not on the flood risk listSM3 8DT: not on the flood risk listSM3 8DU: not on the flood risk listSM3 8DW: not on the flood risk listSM3 8DX: not on the flood risk listSM3 8DY: not on the flood risk listSM3 8DZ: not on the flood risk listSM3 8EA: not on the flood risk listSM3 8EB: not on the flood risk listSM3 8ED: not on the flood risk listSM3 8EE: not on the flood risk listSM3 8EF: not on the flood risk listSM3 8EG: not on the flood risk listSM3 8EJ: not on the flood risk listSM3 8EL: not on the flood risk listSM3 8EN: not on the flood risk listSM3 8EP: not on the flood risk listSM3 8EQ: not on the flood risk listSM3 8ER: not on the flood risk listSM3 8ES: not on the flood risk listSM3 8ET: not on the flood risk listSM3 8HA: not on the flood risk listSM3 8HB: not on the flood risk listSM3 8HD: not on the flood risk listSM3 8HE: not on the flood risk listSM3 8HF: not on the flood risk listSM3 8HG: not on the flood risk listSM3 8HH: not on the flood risk listSM3 8HJ: not on the flood risk listSM3 8HL: not on the flood risk listSM3 8HQ: not on the flood risk listSM3 8HW: not on the flood risk listSM3 8HX: not on the flood risk listSM3 8JB: not on the flood risk listSM3 8JD: not on the flood risk listSM3 8JE: not on the flood risk listSM3 8JF: not on the flood risk listSM3 8JG: not on the flood risk listSM3 8JH: not on the flood risk listSM3 8JL: not on the flood risk listSM3 8JN: not on the flood risk listSM3 8JR: not on the flood risk listSM3 8JW: not on the flood risk listSM3 8JZ: not on the flood risk listSM3 8LA: not on the flood risk listSM3 8LB: not on the flood risk listSM3 8LE: not on the flood risk listSM3 8LF: not on the flood risk listSM3 8LJ: not on the flood risk listSM3 8LL: not on the flood risk listSM3 8LN: not on the flood risk listSM3 8LP: not on the flood risk listSM3 8LR: not on the flood risk listSM3 8LT: not on the flood risk listSM3 8LU: not on the flood risk listSM3 8LW: not on the flood risk listSM3 8LX: not on the flood risk listSM3 8LY: not on the flood risk listSM3 8NA: not on the flood risk listSM3 8NE: not on the flood risk listSM3 8NF: not on the flood risk listSM3 8NG: not on the flood risk listSM3 8NH: not on the flood risk listSM3 8NN: not on the flood risk listSM3 8NP: not on the flood risk listSM3 8NQ: not on the flood risk listSM3 8NR: not on the flood risk listSM3 8NU: not on the flood risk listSM3 8NW: not on the flood risk listSM3 8NX: not on the flood risk listSM3 8NY: not on the flood risk listSM3 8NZ: not on the flood risk listSM3 8PA: not on the flood risk listSM3 8PB: not on the flood risk listSM3 8PD: not on the flood risk listSM3 8PH: not on the flood risk listSM3 8PJ: not on the flood risk listSM3 8PL: not on the flood risk listSM3 8PN: not on the flood risk listSM3 8PQ: not on the flood risk listSM3 8PR: not on the flood risk listSM3 8PS: not on the flood risk listSM3 8PT: not on the flood risk listSM3 8PU: not on the flood risk listSM3 8PW: not on the flood risk listSM3 8PX: not on the flood risk listSM3 8PY: not on the flood risk listSM3 8PZ: not on the flood risk listSM3 8QA: not on the flood risk listSM3 8QB: not on the flood risk listSM3 8QD: not on the flood risk listSM3 8QF: not on the flood risk listSM3 8QG: not on the flood risk listSM3 8QH: not on the flood risk listSM3 8QJ: not on the flood risk listSM3 8QN: not on the flood risk listSM3 8QP: not on the flood risk listSM3 8QR: not on the flood risk listSM3 8QS: not on the flood risk listSM3 8QT: not on the flood risk listSM3 8QU: not on the flood risk listSM3 8QW: not on the flood risk listSM3 8QY: not on the flood risk listSM3 8QZ: not on the flood risk listSM3 8RA: not on the flood risk listSM3 8RE: not on the flood risk listSM3 8RF: not on the flood risk listSM3 8RJ: not on the flood risk listSM3 8RL: not on the flood risk listSM3 8RQ: not on the flood risk listSM3 8RS: not on the flood risk listSM3 8RT: not on the flood risk listSM3 8RU: not on the flood risk listSM3 8RW: not on the flood risk listSM3 8RX: not on the flood risk listSM3 8RY: not on the flood risk listSM3 8RZ: not on the flood risk listSM3 8SA: not on the flood risk listSM3 8SD: not on the flood risk listSM3 8SG: not on the flood risk listSM3 8SH: not on the flood risk listSM3 8SL: not on the flood risk listSM3 8SN: not on the flood risk listSM3 8SP: not on the flood risk listSM3 8SQ: not on the flood risk listSM3 8SR: not on the flood risk listSM3 8SW: not on the flood risk listSM3 9AA: not on the flood risk listSM3 9AB: not on the flood risk listSM3 9AD: not on the flood risk listSM3 9AE: not on the flood risk listSM3 9AG: not on the flood risk listSM3 9AH: not on the flood risk listSM3 9AJ: not on the flood risk listSM3 9AL: not on the flood risk listSM3 9AN: not on the flood risk listSM3 9AP: not on the flood risk listSM3 9AQ: not on the flood risk listSM3 9AR: not on the flood risk listSM3 9AS: not on the flood risk listSM3 9AT: not on the flood risk listSM3 9AU: not on the flood risk listSM3 9AW: not on the flood risk listSM3 9AX: not on the flood risk listSM3 9AY: not on the flood risk listSM3 9AZ: not on the flood risk listSM3 9BA: not on the flood risk listSM3 9BB: not on the flood risk listSM3 9BD: not on the flood risk listSM3 9BE: not on the flood risk listSM3 9BF: not on the flood risk listSM3 9BG: not on the flood risk listSM3 9BH: not on the flood risk listSM3 9BL: not on the flood risk listSM3 9BN: not on the flood risk listSM3 9BP: not on the flood risk listSM3 9BQ: not on the flood risk listSM3 9BT: not on the flood risk listSM3 9BU: not on the flood risk listSM3 9BW: not on the flood risk listSM3 9BX: not on the flood risk listSM3 9BY: not on the flood risk listSM3 9BZ: not on the flood risk listSM3 9DA: not on the flood risk listSM3 9DF: not on the flood risk listSM3 9DG: not on the flood risk listSM3 9DL: not on the flood risk listSM3 9DW: not on the flood risk listSM3 9DX: not on the flood risk listSM3 9ED: not on the flood risk listSM3 9EF: not on the flood risk listSM3 9EG: not on the flood risk listSM3 9EL: not on the flood risk listSM3 9EN: not on the flood risk listSM3 9EQ: not on the flood risk listSM3 9ES: not on the flood risk listSM3 9EY: not on the flood risk listSM3 9HA: not on the flood risk listSM3 9HB: not on the flood risk listSM3 9HE: not on the flood risk listSM3 9HG: not on the flood risk listSM3 9HH: not on the flood risk listSM3 9HJ: not on the flood risk listSM3 9HN: not on the flood risk listSM3 9HQ: not on the flood risk listSM3 9HR: not on the flood risk listSM3 9HS: not on the flood risk listSM3 9HT: not on the flood risk listSM3 9HU: not on the flood risk listSM3 9HW: not on the flood risk listSM3 9HY: not on the flood risk listSM3 9HZ: not on the flood risk listSM3 9JA: not on the flood risk listSM3 9JB: not on the flood risk listSM3 9JD: not on the flood risk listSM3 9JE: not on the flood risk listSM3 9JF: not on the flood risk listSM3 9JH: not on the flood risk listSM3 9JJ: not on the flood risk listSM3 9JL: not on the flood risk listSM3 9JN: not on the flood risk listSM3 9JP: not on the flood risk listSM3 9JR: not on the flood risk listSM3 9JS: not on the flood risk listSM3 9JT: not on the flood risk listSM3 9JU: not on the flood risk listSM3 9JW: not on the flood risk listSM3 9JX: not on the flood risk listSM3 9JY: not on the flood risk listSM3 9JZ: not on the flood risk listSM3 9LA: not on the flood risk listSM3 9LB: not on the flood risk listSM3 9LE: not on the flood risk listSM3 9LF: not on the flood risk listSM3 9LJ: not on the flood risk listSM3 9LL: not on the flood risk listSM3 9LN: not on the flood risk listSM3 9LS: not on the flood risk listSM3 9LT: not on the flood risk listSM3 9LW: not on the flood risk listSM3 9LY: not on the flood risk listSM3 9LZ: not on the flood risk listSM3 9NA: not on the flood risk listSM3 9NB: not on the flood risk listSM3 9ND: not on the flood risk listSM3 9NE: not on the flood risk listSM3 9NG: not on the flood risk listSM3 9NH: not on the flood risk listSM3 9NJ: not on the flood risk listSM3 9NL: not on the flood risk listSM3 9NN: not on the flood risk listSM3 9NQ: not on the flood risk listSM3 9NS: not on the flood risk listSM3 9NT: not on the flood risk listSM3 9NU: not on the flood risk listSM3 9NX: not on the flood risk listSM3 9PA: not on the flood risk listSM3 9PB: not on the flood risk listSM3 9PE: not on the flood risk listSM3 9PF: not on the flood risk listSM3 9PG: not on the flood risk listSM3 9PH: not on the flood risk listSM3 9PJ: not on the flood risk listSM3 9PL: not on the flood risk listSM3 9PP: not on the flood risk listSM3 9PQ: not on the flood risk listSM3 9PR: not on the flood risk listSM3 9PS: not on the flood risk listSM3 9PU: not on the flood risk listSM3 9PW: not on the flood risk listSM3 9PX: not on the flood risk listSM3 9PY: not on the flood risk listSM3 9QA: not on the flood risk listSM3 9QB: not on the flood risk listSM3 9QD: not on the flood risk listSM3 9QE: not on the flood risk listSM3 9QF: not on the flood risk listSM3 9QG: not on the flood risk listSM3 9QH: not on the flood risk listSM3 9QP: not on the flood risk listSM3 9QR: not on the flood risk listSM3 9QS: not on the flood risk listSM3 9QW: not on the flood risk listSM3 9QX: not on the flood risk listSM3 9QY: not on the flood risk listSM3 9RD: not on the flood risk listSM3 9RF: not on the flood risk listSM3 9RG: not on the flood risk listSM3 9RQ: not on the flood risk listSM3 9RR: not on the flood risk listSM3 9RS: not on the flood risk listSM3 9RT: not on the flood risk listSM3 9RU: not on the flood risk listSM3 9RX: not on the flood risk listSM3 9RY: not on the flood risk listSM3 9RZ: not on the flood risk listSM3 9SA: not on the flood risk listSM3 9SB: not on the flood risk listSM3 9SD: not on the flood risk listSM3 9SE: not on the flood risk listSM3 9SF: not on the flood risk listSM3 9SG: not on the flood risk listSM3 9SJ: not on the flood risk listSM3 9SL: not on the flood risk listSM3 9SN: not on the flood risk listSM3 9SP: not on the flood risk listSM3 9SQ: not on the flood risk listSM3 9SR: not on the flood risk listSM3 9SS: not on the flood risk listSM3 9ST: not on the flood risk listSM3 9SU: not on the flood risk listSM3 9SW: not on the flood risk listSM3 9SX: not on the flood risk listSM3 9SY: not on the flood risk listSM3 9SZ: not on the flood risk listSM3 9TA: not on the flood risk listSM3 9TB: not on the flood risk listSM3 9TD: not on the flood risk listSM3 9TE: not on the flood risk listSM3 9TF: not on the flood risk listSM3 9TH: not on the flood risk listSM3 9TJ: not on the flood risk listSM3 9TL: not on the flood risk listSM3 9TN: not on the flood risk listSM3 9TP: not on the flood risk listSM3 9TQ: not on the flood risk listSM3 9TR: not on the flood risk listSM3 9TS: not on the flood risk listSM3 9TT: not on the flood risk listSM3 9TU: not on the flood risk listSM3 9TX: not on the flood risk listSM3 9TZ: not on the flood risk listSM3 9UA: not on the flood risk listSM3 9UB: not on the flood risk listSM3 9UD: not on the flood risk listSM3 9UE: not on the flood risk listSM3 9UF: not on the flood risk listSM3 9UG: not on the flood risk listSM3 9UJ: not on the flood risk listSM3 9UL: not on the flood risk listSM3 9UN: not on the flood risk listSM3 9UP: not on the flood risk listSM3 9UR: not on the flood risk listSM3 9UT: not on the flood risk listSM3 9UU: not on the flood risk listSM3 9UW: not on the flood risk listSM3 9WS: not on the flood risk listSM3 9WW: not on the flood risk listSM3 9BJ: low flood risk at worstSM3 9DR: low flood risk at worstSM3 9EB: low flood risk at worstSM3 9HX: low flood risk at worstSM3 9QJ: low flood risk at worstSM3 9QQ: low flood risk at worstSM3 9QZ: low flood risk at worstSM3 9RA: low flood risk at worstSM3 9RJ: low flood risk at worstSM3 9RN: low flood risk at worstSM3 9EA: medium flood risk at worstSM3 9RH: medium flood risk at worstSM3 9DT: high flood riskSM3 9QL: high flood riskSM3 9QN: high flood riskSM3 9RE: high flood riskSM3 9RL: high flood risk StonecotCheam Map of every postcode in SM3, by flood risk Of the 379 postcodes in SM3 that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 10 are at low risk at worst and 362 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Stonecot, Cheam. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A232 StonecotCheam
  • A home or business at high risk: 5
  • At medium risk at worst: 2
  • At low risk at worst: 10
  • At very low risk only: 0
  • Not on the at-risk list: 362

Of the 379 postcodes in SM3 that ONS places, 5 have a home or business at high risk, 2 are at medium risk at worst, 10 are at low risk at worst and 362 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. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.3713, longitude -0.2162. 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

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

SM3 9DT43 at high riskSM3 9RL14 at high riskSM3 9QN4 at high riskSM3 9RE1 at high riskSM3 9QL1 at high risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

SM3 9WW

What broadband can you get in SM3?

Ofcom reports on 371 of the 379 postcodes in SM3. At 285 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit285 of 371
Postcodes where every home can get superfast365 of 371

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 SM3 at risk of flooding?

17 of the 379 postcodes in SM3 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 95 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 17 of 379 postcodes High: 63Medium: 32Low: 136

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 SM3?

Homes in SM3 sold for a typical £550,000 in the 12 months to August 2026, across 190 sales, no change on the 12 months before, HM Land Registry's figures show.

£550,000 typical price, the 12 months to August 2026
12 months to August 2025
£550,000
12 months to August 2026
£550,000

■ no change on the 12 months before

Detached 3 sales, too few to price
Semi-detached£610,000 72 sales
Terraced£544,950 83 sales
Flat or maisonette£325,000 32 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 SM3

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

SM3 8161 postcodesSM3 9218 postcodes
UK postcode format explained

Places in SM3

Towns and villages with postcodes in SM3, and how many each has here.

Sutton postcodes,375Merton postcodes,3

Who covers SM3

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

  • Sutton and Cheam372
  • Mitcham and Morden4
  • Epsom and Ewell3

Police force areas

  • Metropolitan Police376
  • Surrey3

Next to SM3

SM2 postcode district SM4 postcode district All SM districts Sutton postcodes

"Next to" is by number: the districts before and after SM3 in the SM area.

Check a postcode

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