SO17 postcode district: Southampton and around

SO17 is a postcode district in England, with 441 postcodes in use in 3 sectors. It has postcodes in Southampton. Its council is Southampton.

Postcodes in use
441
Sectors
3
Council
Southampton
Places
Southampton

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

Every postcode in SO17, by flood risk

Map of every postcode in SO17, by flood risk Of the 441 postcodes in SO17 that ONS places, 15 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 416 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 7 postcodes at high or medium risk; 5 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Southampton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A33A3024A3035 SO17 1AB: not on the flood risk listSO17 1AE: not on the flood risk listSO17 1AF: not on the flood risk listSO17 1AG: not on the flood risk listSO17 1AJ: not on the flood risk listSO17 1AN: not on the flood risk listSO17 1AP: not on the flood risk listSO17 1AQ: not on the flood risk listSO17 1AW: not on the flood risk listSO17 1AX: not on the flood risk listSO17 1BE: not on the flood risk listSO17 1BF: not on the flood risk listSO17 1BJ: not on the flood risk listSO17 1BX: not on the flood risk listSO17 1DA: not on the flood risk listSO17 1DB: not on the flood risk listSO17 1DF: not on the flood risk listSO17 1DG: not on the flood risk listSO17 1DH: not on the flood risk listSO17 1DJ: not on the flood risk listSO17 1DL: not on the flood risk listSO17 1DN: not on the flood risk listSO17 1DR: not on the flood risk listSO17 1DS: not on the flood risk listSO17 1DT: not on the flood risk listSO17 1DU: not on the flood risk listSO17 1DW: not on the flood risk listSO17 1DX: not on the flood risk listSO17 1DY: not on the flood risk listSO17 1DZ: not on the flood risk listSO17 1EA: not on the flood risk listSO17 1EB: not on the flood risk listSO17 1ED: not on the flood risk listSO17 1EE: not on the flood risk listSO17 1EF: not on the flood risk listSO17 1EG: not on the flood risk listSO17 1EH: not on the flood risk listSO17 1EJ: not on the flood risk listSO17 1EL: not on the flood risk listSO17 1EN: not on the flood risk listSO17 1EP: not on the flood risk listSO17 1EQ: not on the flood risk listSO17 1ER: not on the flood risk listSO17 1ES: not on the flood risk listSO17 1EU: not on the flood risk listSO17 1EW: not on the flood risk listSO17 1EX: not on the flood risk listSO17 1EY: not on the flood risk listSO17 1GG: not on the flood risk listSO17 1GJ: not on the flood risk listSO17 1HD: not on the flood risk listSO17 1HR: not on the flood risk listSO17 1JT: not on the flood risk listSO17 1LA: not on the flood risk listSO17 1LP: not on the flood risk listSO17 1NF: not on the flood risk listSO17 1NJ: not on the flood risk listSO17 1NN: not on the flood risk listSO17 1NP: not on the flood risk listSO17 1NQ: not on the flood risk listSO17 1NR: not on the flood risk listSO17 1NS: not on the flood risk listSO17 1NT: not on the flood risk listSO17 1NU: not on the flood risk listSO17 1NW: not on the flood risk listSO17 1NX: not on the flood risk listSO17 1NY: not on the flood risk listSO17 1PA: not on the flood risk listSO17 1PB: not on the flood risk listSO17 1PD: not on the flood risk listSO17 1PE: not on the flood risk listSO17 1PF: not on the flood risk listSO17 1PG: not on the flood risk listSO17 1PH: not on the flood risk listSO17 1PJ: not on the flood risk listSO17 1PL: not on the flood risk listSO17 1PN: not on the flood risk listSO17 1PP: not on the flood risk listSO17 1PQ: not on the flood risk listSO17 1PR: not on the flood risk listSO17 1PS: not on the flood risk listSO17 1PT: not on the flood risk listSO17 1PU: not on the flood risk listSO17 1PW: not on the flood risk listSO17 1PX: not on the flood risk listSO17 1PY: not on the flood risk listSO17 1PZ: not on the flood risk listSO17 1QA: not on the flood risk listSO17 1QB: not on the flood risk listSO17 1QD: not on the flood risk listSO17 1QE: not on the flood risk listSO17 1QF: not on the flood risk listSO17 1QG: not on the flood risk listSO17 1QH: not on the flood risk listSO17 1QJ: not on the flood risk listSO17 1QL: not on the flood risk listSO17 1QN: not on the flood risk listSO17 1QP: not on the flood risk listSO17 1QQ: not on the flood risk listSO17 1QR: not on the flood risk listSO17 1QS: not on the flood risk listSO17 1QT: not on the flood risk listSO17 1QU: not on the flood risk listSO17 1QW: not on the flood risk listSO17 1QY: not on the flood risk listSO17 1QZ: not on the flood risk listSO17 1RA: not on the flood risk listSO17 1RB: not on the flood risk listSO17 1RD: not on the flood risk listSO17 1RE: not on the flood risk listSO17 1RF: not on the flood risk listSO17 1RG: not on the flood risk listSO17 1RH: not on the flood risk listSO17 1RJ: not on the flood risk listSO17 1RL: not on the flood risk listSO17 1RN: not on the flood risk listSO17 1RP: not on the flood risk listSO17 1RQ: not on the flood risk listSO17 1RR: not on the flood risk listSO17 1RS: not on the flood risk listSO17 1RT: not on the flood risk listSO17 1RU: not on the flood risk listSO17 1RW: not on the flood risk listSO17 1RX: not on the flood risk listSO17 1RY: not on the flood risk listSO17 1RZ: not on the flood risk listSO17 1SA: not on the flood risk listSO17 1SB: not on the flood risk listSO17 1SD: not on the flood risk listSO17 1SE: not on the flood risk listSO17 1SF: not on the flood risk listSO17 1SG: not on the flood risk listSO17 1SH: not on the flood risk listSO17 1SJ: not on the flood risk listSO17 1SL: not on the flood risk listSO17 1SN: not on the flood risk listSO17 1SP: not on the flood risk listSO17 1SQ: not on the flood risk listSO17 1SR: not on the flood risk listSO17 1SS: not on the flood risk listSO17 1ST: not on the flood risk listSO17 1SU: not on the flood risk listSO17 1SW: not on the flood risk listSO17 1SX: not on the flood risk listSO17 1SY: not on the flood risk listSO17 1SZ: not on the flood risk listSO17 1TA: not on the flood risk listSO17 1TB: not on the flood risk listSO17 1TD: not on the flood risk listSO17 1TF: not on the flood risk listSO17 1TG: not on the flood risk listSO17 1TJ: not on the flood risk listSO17 1TL: not on the flood risk listSO17 1TU: not on the flood risk listSO17 1TW: not on the flood risk listSO17 1TX: not on the flood risk listSO17 1UA: not on the flood risk listSO17 1UB: not on the flood risk listSO17 1UD: not on the flood risk listSO17 1UE: not on the flood risk listSO17 1UF: not on the flood risk listSO17 1UH: not on the flood risk listSO17 1UJ: not on the flood risk listSO17 1UL: not on the flood risk listSO17 1UN: not on the flood risk listSO17 1UT: not on the flood risk listSO17 1UU: not on the flood risk listSO17 1UW: not on the flood risk listSO17 1UX: not on the flood risk listSO17 1UY: not on the flood risk listSO17 1UZ: not on the flood risk listSO17 1WA: not on the flood risk listSO17 1WB: not on the flood risk listSO17 1WD: not on the flood risk listSO17 1WF: not on the flood risk listSO17 1WH: not on the flood risk listSO17 1WT: not on the flood risk listSO17 1WU: not on the flood risk listSO17 1WW: not on the flood risk listSO17 1WY: not on the flood risk listSO17 1WZ: not on the flood risk listSO17 1XA: not on the flood risk listSO17 1XB: not on the flood risk listSO17 1XD: not on the flood risk listSO17 1XE: not on the flood risk listSO17 1XF: not on the flood risk listSO17 1XG: not on the flood risk listSO17 1XH: not on the flood risk listSO17 1XJ: not on the flood risk listSO17 1XL: not on the flood risk listSO17 1XN: not on the flood risk listSO17 1XQ: not on the flood risk listSO17 1XR: not on the flood risk listSO17 1XS: not on the flood risk listSO17 1YB: not on the flood risk listSO17 2AE: not on the flood risk listSO17 2AG: not on the flood risk listSO17 2AH: not on the flood risk listSO17 2AS: not on the flood risk listSO17 2AU: not on the flood risk listSO17 2AW: not on the flood risk listSO17 2AX: not on the flood risk listSO17 2AY: not on the flood risk listSO17 2BA: not on the flood risk listSO17 2BN: not on the flood risk listSO17 2ER: not on the flood risk listSO17 2ES: not on the flood risk listSO17 2ET: not on the flood risk listSO17 2EU: not on the flood risk listSO17 2EW: not on the flood risk listSO17 2EX: not on the flood risk listSO17 2EY: not on the flood risk listSO17 2EZ: not on the flood risk listSO17 2FB: not on the flood risk listSO17 2FD: not on the flood risk listSO17 2FE: not on the flood risk listSO17 2FF: not on the flood risk listSO17 2FG: not on the flood risk listSO17 2FH: not on the flood risk listSO17 2FJ: not on the flood risk listSO17 2FL: not on the flood risk listSO17 2FN: not on the flood risk listSO17 2FP: not on the flood risk listSO17 2FQ: not on the flood risk listSO17 2FR: not on the flood risk listSO17 2FS: not on the flood risk listSO17 2FT: not on the flood risk listSO17 2FW: not on the flood risk listSO17 2FX: not on the flood risk listSO17 2FY: not on the flood risk listSO17 2FZ: not on the flood risk listSO17 2GA: not on the flood risk listSO17 2GB: not on the flood risk listSO17 2GD: not on the flood risk listSO17 2GE: not on the flood risk listSO17 2GF: not on the flood risk listSO17 2GG: not on the flood risk listSO17 2GH: not on the flood risk listSO17 2GJ: not on the flood risk listSO17 2GL: not on the flood risk listSO17 2GN: not on the flood risk listSO17 2GP: not on the flood risk listSO17 2GQ: not on the flood risk listSO17 2GR: not on the flood risk listSO17 2GS: not on the flood risk listSO17 2GT: not on the flood risk listSO17 2GU: not on the flood risk listSO17 2GW: not on the flood risk listSO17 2GX: not on the flood risk listSO17 2GY: not on the flood risk listSO17 2GZ: not on the flood risk listSO17 2HA: not on the flood risk listSO17 2HB: not on the flood risk listSO17 2HD: not on the flood risk listSO17 2HE: not on the flood risk listSO17 2HF: not on the flood risk listSO17 2HG: not on the flood risk listSO17 2HH: not on the flood risk listSO17 2HJ: not on the flood risk listSO17 2HL: not on the flood risk listSO17 2HN: not on the flood risk listSO17 2HP: not on the flood risk listSO17 2HQ: not on the flood risk listSO17 2HR: not on the flood risk listSO17 2HX: not on the flood risk listSO17 2HY: not on the flood risk listSO17 2HZ: not on the flood risk listSO17 2JA: not on the flood risk listSO17 2JB: not on the flood risk listSO17 2JE: not on the flood risk listSO17 2JF: not on the flood risk listSO17 2JG: not on the flood risk listSO17 2JH: not on the flood risk listSO17 2JL: not on the flood risk listSO17 2JN: not on the flood risk listSO17 2JR: not on the flood risk listSO17 2JS: not on the flood risk listSO17 2JT: not on the flood risk listSO17 2JX: not on the flood risk listSO17 2LA: not on the flood risk listSO17 2LB: not on the flood risk listSO17 2LD: not on the flood risk listSO17 2LE: not on the flood risk listSO17 2LF: not on the flood risk listSO17 2LL: not on the flood risk listSO17 2LN: not on the flood risk listSO17 2LP: not on the flood risk listSO17 2LR: not on the flood risk listSO17 2LU: not on the flood risk listSO17 2LW: not on the flood risk listSO17 2LX: not on the flood risk listSO17 2LY: not on the flood risk listSO17 2LZ: not on the flood risk listSO17 2NA: not on the flood risk listSO17 2NB: not on the flood risk listSO17 2ND: not on the flood risk listSO17 2NE: not on the flood risk listSO17 2NF: not on the flood risk listSO17 2NG: not on the flood risk listSO17 2NH: not on the flood risk listSO17 2NJ: not on the flood risk listSO17 2NL: not on the flood risk listSO17 2NN: not on the flood risk listSO17 2NP: not on the flood risk listSO17 2NR: not on the flood risk listSO17 2NU: not on the flood risk listSO17 2TB: not on the flood risk listSO17 2TD: not on the flood risk listSO17 2TE: not on the flood risk listSO17 2TH: not on the flood risk listSO17 2TY: not on the flood risk listSO17 2UA: not on the flood risk listSO17 2UB: not on the flood risk listSO17 2UP: not on the flood risk listSO17 2UQ: not on the flood risk listSO17 2UR: not on the flood risk listSO17 2US: not on the flood risk listSO17 2WE: not on the flood risk listSO17 2WN: not on the flood risk listSO17 2WP: not on the flood risk listSO17 2WS: not on the flood risk listSO17 2WX: not on the flood risk listSO17 2XA: not on the flood risk listSO17 3AA: not on the flood risk listSO17 3AB: not on the flood risk listSO17 3AD: not on the flood risk listSO17 3AE: not on the flood risk listSO17 3AF: not on the flood risk listSO17 3AG: not on the flood risk listSO17 3AH: not on the flood risk listSO17 3AJ: not on the flood risk listSO17 3AP: not on the flood risk listSO17 3AQ: not on the flood risk listSO17 3AR: not on the flood risk listSO17 3AS: not on the flood risk listSO17 3AT: not on the flood risk listSO17 3AU: not on the flood risk listSO17 3AW: not on the flood risk listSO17 3AX: not on the flood risk listSO17 3BD: not on the flood risk listSO17 3EA: not on the flood risk listSO17 3ED: not on the flood risk listSO17 3ES: not on the flood risk listSO17 3QY: not on the flood risk listSO17 3QZ: not on the flood risk listSO17 3RA: not on the flood risk listSO17 3RB: not on the flood risk listSO17 3RD: not on the flood risk listSO17 3RE: not on the flood risk listSO17 3RF: not on the flood risk listSO17 3RG: not on the flood risk listSO17 3RH: not on the flood risk listSO17 3RJ: not on the flood risk listSO17 3RL: not on the flood risk listSO17 3RN: not on the flood risk listSO17 3RP: not on the flood risk listSO17 3RQ: not on the flood risk listSO17 3RS: not on the flood risk listSO17 3RT: not on the flood risk listSO17 3RU: not on the flood risk listSO17 3RW: not on the flood risk listSO17 3RX: not on the flood risk listSO17 3RY: not on the flood risk listSO17 3RZ: not on the flood risk listSO17 3SA: not on the flood risk listSO17 3SB: not on the flood risk listSO17 3SD: not on the flood risk listSO17 3SE: not on the flood risk listSO17 3SF: not on the flood risk listSO17 3SG: not on the flood risk listSO17 3SH: not on the flood risk listSO17 3SJ: not on the flood risk listSO17 3SL: not on the flood risk listSO17 3SN: not on the flood risk listSO17 3SP: not on the flood risk listSO17 3SQ: not on the flood risk listSO17 3SS: not on the flood risk listSO17 3ST: not on the flood risk listSO17 3SU: not on the flood risk listSO17 3SW: not on the flood risk listSO17 3SX: not on the flood risk listSO17 3SY: not on the flood risk listSO17 3SZ: not on the flood risk listSO17 3TA: not on the flood risk listSO17 3TB: not on the flood risk listSO17 3TD: not on the flood risk listSO17 3TE: not on the flood risk listSO17 3TF: not on the flood risk listSO17 3TG: not on the flood risk listSO17 3TH: not on the flood risk listSO17 3TJ: not on the flood risk listSO17 3TL: not on the flood risk listSO17 3TN: not on the flood risk listSO17 3TW: not on the flood risk listSO17 3UA: not on the flood risk listSO17 2HW: very low flood risk onlySO17 2JZ: very low flood risk onlySO17 2JQ: low flood risk at worstSO17 2WJ: low flood risk at worstSO17 2WR: low flood risk at worstSO17 2JP: medium flood risk at worstSO17 2NS: medium flood risk at worstSO17 2NZ: medium flood risk at worstSO17 3AN: medium flood risk at worstSO17 2HS: high flood riskSO17 2HT: high flood riskSO17 2HU: high flood riskSO17 2JJ: high flood riskSO17 2JU: high flood riskSO17 2JW: high flood riskSO17 2JY: high flood riskSO17 2LG: high flood riskSO17 2LH: high flood riskSO17 2LJ: high flood riskSO17 2LQ: high flood riskSO17 2LS: high flood riskSO17 2LT: high flood riskSO17 2WL: high flood riskSO17 2WQ: high flood risk Southampton 7 postcodes at high or medium risk, outlined: this goes to SO17 2LJ, the one with most homes and businesses at high risk7 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to SO17 2HS, the one with most homes and businesses at high risk5 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to SO17 2WL, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in SO17, by flood risk Of the 441 postcodes in SO17 that ONS places, 15 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 416 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 7 postcodes at high or medium risk; 5 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Southampton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A3057 Southampton
  • A home or business at high risk: 15
  • At medium risk at worst: 4
  • At low risk at worst: 4
  • At very low risk only: 2
  • Not on the at-risk list: 416
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 441 postcodes in SO17 that ONS places, 15 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 416 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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 50.9272, longitude -1.3925. 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

15 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

SO17 2HS35 at high riskSO17 2LS30 at high riskSO17 2WL16 at high riskSO17 2HT15 at high riskSO17 2LJ12 at high riskSO17 2HU11 at high riskSO17 2LT10 at high riskSO17 2JW8 at high riskSO17 2JY6 at high riskSO17 2LG6 at high riskSO17 2LH3 at high riskSO17 2LQ3 at high risk

Where the postcodes at high or medium risk lie together

  • 7 postcodes at high or medium risk, outlined on the map. SO17 2LJ, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. SO17 2HS, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. SO17 2WL, is the one with most homes and businesses at high risk.

What broadband can you get in SO17?

Ofcom reports on 436 of the 441 postcodes in SO17. At 414 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit414 of 436
Postcodes where every home can get superfast428 of 436

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 SO17 at risk of flooding?

25 of the 441 postcodes in SO17 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 200 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 25 of 441 postcodes High: 159Medium: 41Low: 92Very low: 40

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 SO17?

Homes in SO17 sold for a typical £225,000 in the 12 months to August 2026, across 165 sales, down 17.8% on the 12 months before, HM Land Registry's figures show.

£225,000 typical price, the 12 months to August 2026
12 months to August 2025
£273,750
12 months to August 2026
£225,000

▼ down 17.8% on the 12 months before

Detached£862,000 15 sales
Semi-detached£295,000 36 sales
Terraced£270,000 24 sales
Flat or maisonette£169,000 90 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 SO17

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

SO17 1204 postcodesSO17 2163 postcodesSO17 374 postcodes
UK postcode format explained

Places in SO17

Towns and villages with postcodes in SO17, and how many each has here.

Southampton postcodes,441

Who covers SO17

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

  • Southampton Test398
  • Romsey and Southampton North43

Police force areas

  • Hampshire441

Next to SO17

SO16 postcode district SO18 postcode district All SO districts Southampton postcodes

"Next to" is by number: the districts before and after SO17 in the SO area.

Check a postcode

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