SG19 3 postcode sector in the SG19 district

SG19 3 is a sector of the SG19 district: every postcode that starts SG19 3. It has 163 postcodes in use, 3 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

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

Every postcode in the SG19 3 sector, by flood risk

Map of every postcode in the SG19 3 sector, by flood risk Of the 163 postcodes in the SG19 3 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 4 are at low risk at worst and 157 are not on the Environment Agency's at-risk list. Places named: Potton, Gamlingay. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. SG19 3AA: not on the flood risk listSG19 3AB: not on the flood risk listSG19 3AD: not on the flood risk listSG19 3AF: not on the flood risk listSG19 3AG: not on the flood risk listSG19 3AH: not on the flood risk listSG19 3AL: not on the flood risk listSG19 3AN: not on the flood risk listSG19 3AP: not on the flood risk listSG19 3AQ: not on the flood risk listSG19 3AR: not on the flood risk listSG19 3AS: not on the flood risk listSG19 3AT: not on the flood risk listSG19 3AU: not on the flood risk listSG19 3AW: not on the flood risk listSG19 3AX: not on the flood risk listSG19 3AZ: not on the flood risk listSG19 3BA: not on the flood risk listSG19 3BD: not on the flood risk listSG19 3BE: not on the flood risk listSG19 3BG: not on the flood risk listSG19 3BH: not on the flood risk listSG19 3BJ: not on the flood risk listSG19 3BL: not on the flood risk listSG19 3BP: not on the flood risk listSG19 3BQ: not on the flood risk listSG19 3BS: not on the flood risk listSG19 3BT: not on the flood risk listSG19 3BU: not on the flood risk listSG19 3BX: not on the flood risk listSG19 3BY: not on the flood risk listSG19 3BZ: not on the flood risk listSG19 3DA: not on the flood risk listSG19 3DB: not on the flood risk listSG19 3DD: not on the flood risk listSG19 3DE: not on the flood risk listSG19 3DF: not on the flood risk listSG19 3DG: not on the flood risk listSG19 3DH: not on the flood risk listSG19 3DJ: not on the flood risk listSG19 3DL: not on the flood risk listSG19 3DN: not on the flood risk listSG19 3DP: not on the flood risk listSG19 3DQ: not on the flood risk listSG19 3DR: not on the flood risk listSG19 3DS: not on the flood risk listSG19 3DU: not on the flood risk listSG19 3DX: not on the flood risk listSG19 3DY: not on the flood risk listSG19 3DZ: not on the flood risk listSG19 3EA: not on the flood risk listSG19 3EB: not on the flood risk listSG19 3EE: not on the flood risk listSG19 3EF: not on the flood risk listSG19 3EG: not on the flood risk listSG19 3EH: not on the flood risk listSG19 3EJ: not on the flood risk listSG19 3EL: not on the flood risk listSG19 3EN: not on the flood risk listSG19 3EP: not on the flood risk listSG19 3EQ: not on the flood risk listSG19 3ER: not on the flood risk listSG19 3ES: not on the flood risk listSG19 3ET: not on the flood risk listSG19 3EU: not on the flood risk listSG19 3EW: not on the flood risk listSG19 3EX: not on the flood risk listSG19 3EY: not on the flood risk listSG19 3EZ: not on the flood risk listSG19 3FB: not on the flood risk listSG19 3FZ: not on the flood risk listSG19 3HA: not on the flood risk listSG19 3HB: not on the flood risk listSG19 3HD: not on the flood risk listSG19 3HH: not on the flood risk listSG19 3HJ: not on the flood risk listSG19 3HL: not on the flood risk listSG19 3HN: not on the flood risk listSG19 3HP: not on the flood risk listSG19 3HR: not on the flood risk listSG19 3HU: not on the flood risk listSG19 3HW: not on the flood risk listSG19 3HX: not on the flood risk listSG19 3HY: not on the flood risk listSG19 3HZ: not on the flood risk listSG19 3JA: not on the flood risk listSG19 3JB: not on the flood risk listSG19 3JD: not on the flood risk listSG19 3JE: not on the flood risk listSG19 3JH: not on the flood risk listSG19 3JJ: not on the flood risk listSG19 3JP: not on the flood risk listSG19 3JQ: not on the flood risk listSG19 3JR: not on the flood risk listSG19 3JS: not on the flood risk listSG19 3JT: not on the flood risk listSG19 3JU: not on the flood risk listSG19 3JW: not on the flood risk listSG19 3JX: not on the flood risk listSG19 3JY: not on the flood risk listSG19 3JZ: not on the flood risk listSG19 3LA: not on the flood risk listSG19 3LD: not on the flood risk listSG19 3LG: not on the flood risk listSG19 3LH: not on the flood risk listSG19 3LJ: not on the flood risk listSG19 3LP: not on the flood risk listSG19 3LQ: not on the flood risk listSG19 3LR: not on the flood risk listSG19 3LS: not on the flood risk listSG19 3LU: not on the flood risk listSG19 3LX: not on the flood risk listSG19 3LY: not on the flood risk listSG19 3LZ: not on the flood risk listSG19 3NA: not on the flood risk listSG19 3NB: not on the flood risk listSG19 3NE: not on the flood risk listSG19 3NH: not on the flood risk listSG19 3NJ: not on the flood risk listSG19 3NL: not on the flood risk listSG19 3NN: not on the flood risk listSG19 3NP: not on the flood risk listSG19 3NQ: not on the flood risk listSG19 3NS: not on the flood risk listSG19 3NT: not on the flood risk listSG19 3NU: not on the flood risk listSG19 3NW: not on the flood risk listSG19 3NX: not on the flood risk listSG19 3NY: not on the flood risk listSG19 3NZ: not on the flood risk listSG19 3PA: not on the flood risk listSG19 3PD: not on the flood risk listSG19 3PF: not on the flood risk listSG19 3QD: not on the flood risk listSG19 3QH: not on the flood risk listSG19 3QP: not on the flood risk listSG19 3QR: not on the flood risk listSG19 3RB: not on the flood risk listSG19 3RD: not on the flood risk listSG19 3RJ: not on the flood risk listSG19 3RL: not on the flood risk listSG19 3SH: not on the flood risk listSG19 3ZQ: not on the flood risk listSG19 3BB: low flood risk at worstSG19 3DW: low flood risk at worstSG19 3HE: low flood risk at worstSG19 3RH: low flood risk at worstSG19 3LL: medium flood risk at worstSG19 3LW: high flood risk PottonGamlingay Map of every postcode in the SG19 3 sector, by flood risk Of the 163 postcodes in the SG19 3 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 4 are at low risk at worst and 157 are not on the Environment Agency's at-risk list. Places named: Potton, Gamlingay. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. PottonGamlingay
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 4
  • At very low risk only: 0
  • Not on the at-risk list: 157

Of the 163 postcodes in the SG19 3 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 4 are at low risk at worst and 157 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. 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; 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.

SG19 3LW2 at high risk

What do homes sell for in SG19 3?

Homes in SG19 3 sold for a typical £430,000 in the 12 months to August 2026, across 58 sales, up 10.3% on the 12 months before, HM Land Registry's figures show.

£430,000 typical price, the 12 months to August 2026
£390,000 12 months to August 2025
▲ up 10.3% on the 12 months before
  • Detached £615,000 29 sales
  • Semi-detached £338,000 15 sales
  • Terraced £312,500 14 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start SG19 3. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 SG19 3

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

SG19 3AASG19 3ABSG19 3ADSG19 3AESG19 3AFSG19 3AGSG19 3AHSG19 3ALSG19 3ANSG19 3APSG19 3AQSG19 3ARSG19 3ASSG19 3ATSG19 3AUSG19 3AWSG19 3AXSG19 3AYSG19 3AZSG19 3BASG19 3BBSG19 3BDSG19 3BESG19 3BGSG19 3BHSG19 3BJSG19 3BLSG19 3BPSG19 3BQSG19 3BSSG19 3BTSG19 3BUSG19 3BXSG19 3BYSG19 3BZSG19 3DASG19 3DBSG19 3DDSG19 3DESG19 3DFSG19 3DGSG19 3DHSG19 3DJSG19 3DLSG19 3DNSG19 3DPSG19 3DQSG19 3DRSG19 3DSSG19 3DUSG19 3DWSG19 3DXSG19 3DYSG19 3DZSG19 3EASG19 3EBSG19 3EESG19 3EFSG19 3EGSG19 3EHSG19 3EJSG19 3ELSG19 3ENSG19 3EPSG19 3EQSG19 3ERSG19 3ESSG19 3ETSG19 3EUSG19 3EWSG19 3EXSG19 3EYSG19 3EZSG19 3FBSG19 3FZSG19 3HASG19 3HBSG19 3HDSG19 3HESG19 3HHSG19 3HJSG19 3HLSG19 3HNSG19 3HPSG19 3HRSG19 3HTSG19 3HUSG19 3HWSG19 3HXSG19 3HYSG19 3HZSG19 3JASG19 3JBSG19 3JDSG19 3JESG19 3JFSG19 3JHSG19 3JJSG19 3JNSG19 3JPSG19 3JQSG19 3JRSG19 3JSSG19 3JTSG19 3JUSG19 3JWSG19 3JXSG19 3JYSG19 3JZSG19 3LASG19 3LDSG19 3LFSG19 3LGSG19 3LHSG19 3LJSG19 3LLSG19 3LPSG19 3LQSG19 3LRSG19 3LSSG19 3LTSG19 3LUSG19 3LWSG19 3LXSG19 3LYSG19 3LZSG19 3NASG19 3NBSG19 3NDSG19 3NESG19 3NGSG19 3NHSG19 3NJSG19 3NLSG19 3NNSG19 3NPSG19 3NQSG19 3NRSG19 3NSSG19 3NTSG19 3NUSG19 3NWSG19 3NXSG19 3NYSG19 3NZSG19 3PASG19 3PDSG19 3PESG19 3PFSG19 3QDSG19 3QHSG19 3QPSG19 3QRSG19 3QSSG19 3QUSG19 3RASG19 3RBSG19 3RDSG19 3RHSG19 3RJSG19 3RLSG19 3SHSG19 3ZQ

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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