SL9 9 postcode sector in the SL9 district

SL9 9 is a sector of the SL9 district: every postcode that starts SL9 9. It has 227 postcodes in use, 5 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 SL9 9 sector, and which are new since 2020

Map of every postcode in the SL9 9 sector, by new since 2020 Of the 227 postcodes in the SL9 9 sector that ONS places, 3 are new since 2020 and 224 were in use before 2020. Places named: Chalfont St Peter. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A413 SL9 9AA: before 2020SL9 9AB: before 2020SL9 9AD: before 2020SL9 9AE: before 2020SL9 9AF: before 2020SL9 9AG: before 2020SL9 9AH: before 2020SL9 9AJ: before 2020SL9 9AL: before 2020SL9 9AP: before 2020SL9 9AQ: before 2020SL9 9AR: before 2020SL9 9AS: before 2020SL9 9AT: before 2020SL9 9AU: before 2020SL9 9AW: before 2020SL9 9AX: before 2020SL9 9AY: before 2020SL9 9AZ: before 2020SL9 9BA: before 2020SL9 9BB: before 2020SL9 9BD: before 2020SL9 9BE: before 2020SL9 9BG: before 2020SL9 9BH: before 2020SL9 9BJ: before 2020SL9 9BL: before 2020SL9 9BN: before 2020SL9 9BQ: before 2020SL9 9BW: before 2020SL9 9DA: before 2020SL9 9DB: before 2020SL9 9DD: before 2020SL9 9DE: before 2020SL9 9DG: before 2020SL9 9DH: before 2020SL9 9DJ: before 2020SL9 9DL: before 2020SL9 9DN: before 2020SL9 9DP: before 2020SL9 9DQ: before 2020SL9 9DR: before 2020SL9 9DS: before 2020SL9 9DT: before 2020SL9 9DU: before 2020SL9 9DW: before 2020SL9 9DX: before 2020SL9 9DY: before 2020SL9 9EA: before 2020SL9 9EB: before 2020SL9 9EH: before 2020SL9 9EN: before 2020SL9 9EQ: before 2020SL9 9ER: before 2020SL9 9ES: before 2020SL9 9ET: before 2020SL9 9EU: before 2020SL9 9EW: before 2020SL9 9EX: before 2020SL9 9EY: before 2020SL9 9FB: before 2020SL9 9FD: before 2020SL9 9FE: before 2020SL9 9FF: before 2020SL9 9FG: before 2020SL9 9FH: before 2020SL9 9FJ: before 2020SL9 9FL: before 2020SL9 9FN: before 2020SL9 9FP: before 2020SL9 9FQ: before 2020SL9 9FR: before 2020SL9 9FS: before 2020SL9 9FT: before 2020SL9 9FU: before 2020SL9 9HA: before 2020SL9 9HB: before 2020SL9 9HE: before 2020SL9 9HG: before 2020SL9 9HH: before 2020SL9 9HJ: before 2020SL9 9HL: before 2020SL9 9HN: before 2020SL9 9HP: before 2020SL9 9HQ: before 2020SL9 9HR: before 2020SL9 9HS: before 2020SL9 9HT: before 2020SL9 9HU: before 2020SL9 9HW: before 2020SL9 9HX: before 2020SL9 9HY: before 2020SL9 9HZ: before 2020SL9 9JA: before 2020SL9 9JB: before 2020SL9 9JD: before 2020SL9 9JE: before 2020SL9 9JF: before 2020SL9 9JG: before 2020SL9 9JH: before 2020SL9 9JJ: before 2020SL9 9JQ: before 2020SL9 9JR: before 2020SL9 9JS: before 2020SL9 9JT: before 2020SL9 9JU: before 2020SL9 9JY: before 2020SL9 9JZ: before 2020SL9 9LB: before 2020SL9 9LD: before 2020SL9 9LE: before 2020SL9 9LF: before 2020SL9 9LG: before 2020SL9 9LH: before 2020SL9 9LJ: before 2020SL9 9LL: before 2020SL9 9LN: before 2020SL9 9LQ: before 2020SL9 9LR: before 2020SL9 9LS: before 2020SL9 9LT: before 2020SL9 9LU: before 2020SL9 9LW: before 2020SL9 9LX: before 2020SL9 9LY: before 2020SL9 9LZ: before 2020SL9 9NA: before 2020SL9 9NB: before 2020SL9 9ND: before 2020SL9 9NE: before 2020SL9 9NF: before 2020SL9 9NJ: before 2020SL9 9NL: before 2020SL9 9NN: before 2020SL9 9NP: before 2020SL9 9NR: before 2020SL9 9NS: before 2020SL9 9NT: before 2020SL9 9NU: before 2020SL9 9NW: before 2020SL9 9NX: before 2020SL9 9NY: before 2020SL9 9NZ: before 2020SL9 9PA: before 2020SL9 9PB: before 2020SL9 9PD: before 2020SL9 9PE: before 2020SL9 9PF: before 2020SL9 9PG: before 2020SL9 9PH: before 2020SL9 9PJ: before 2020SL9 9PL: before 2020SL9 9PN: before 2020SL9 9PP: before 2020SL9 9PQ: before 2020SL9 9PR: before 2020SL9 9PW: before 2020SL9 9QA: before 2020SL9 9QE: before 2020SL9 9QH: before 2020SL9 9QJ: before 2020SL9 9QL: before 2020SL9 9QP: before 2020SL9 9QQ: before 2020SL9 9QR: before 2020SL9 9QS: before 2020SL9 9QT: before 2020SL9 9QU: before 2020SL9 9QX: before 2020SL9 9RA: before 2020SL9 9RE: before 2020SL9 9RJ: before 2020SL9 9RL: before 2020SL9 9RN: before 2020SL9 9RP: before 2020SL9 9RR: before 2020SL9 9RS: before 2020SL9 9RU: before 2020SL9 9RY: before 2020SL9 9RZ: before 2020SL9 9SA: before 2020SL9 9SB: before 2020SL9 9SD: before 2020SL9 9SE: before 2020SL9 9SF: before 2020SL9 9SG: before 2020SL9 9SH: before 2020SL9 9SJ: before 2020SL9 9SL: before 2020SL9 9SN: before 2020SL9 9SP: before 2020SL9 9SQ: before 2020SL9 9SR: before 2020SL9 9SS: before 2020SL9 9SW: before 2020SL9 9SX: before 2020SL9 9SY: before 2020SL9 9SZ: before 2020SL9 9TA: before 2020SL9 9TB: before 2020SL9 9TD: before 2020SL9 9TF: before 2020SL9 9TG: before 2020SL9 9TH: before 2020SL9 9TJ: before 2020SL9 9TL: before 2020SL9 9TP: before 2020SL9 9TQ: before 2020SL9 9TR: before 2020SL9 9TS: before 2020SL9 9TT: before 2020SL9 9TU: before 2020SL9 9TW: before 2020SL9 9TX: before 2020SL9 9TY: before 2020SL9 9TZ: before 2020SL9 9UA: before 2020SL9 9UB: before 2020SL9 9UD: before 2020SL9 9UE: before 2020SL9 9UL: before 2020SL9 9UP: before 2020SL9 9YZ: before 2020SL9 9FW: new since 2020SL9 9FX: new since 2020SL9 9RF: new since 2020 Chalfont St Peter Map of every postcode in the SL9 9 sector, by new since 2020 Of the 227 postcodes in the SL9 9 sector that ONS places, 3 are new since 2020 and 224 were in use before 2020. Places named: Chalfont St Peter. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Chalfont St Peter
  • New since 2020: 3
  • In use before 2020: 224

Of the 227 postcodes in the SL9 9 sector that ONS places, 3 are new since 2020 and 224 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.

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 3 newest postcodes

SL9 9FXJanuary 2026SL9 9FWJuly 2024SL9 9RFJune 2021

What do homes sell for in SL9 9?

Homes in SL9 9 sold for a typical £702,750 in the 12 months to August 2026, across 82 sales, up 11.5% on the 12 months before, HM Land Registry's figures show.

£702,750 typical price, the 12 months to August 2026
£630,000 12 months to August 2025
▲ up 11.5% on the 12 months before
  • Detached £942,500 32 sales
  • Semi-detached £708,000 19 sales
  • Terraced £551,250 14 sales
  • Flat or maisonette £338,000 17 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 SL9 9. 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 SL9 9

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.

SL9 9AASL9 9ABSL9 9ADSL9 9AESL9 9AFSL9 9AGSL9 9AHSL9 9AJSL9 9ALSL9 9APSL9 9AQSL9 9ARSL9 9ASSL9 9ATSL9 9AUSL9 9AWSL9 9AXSL9 9AYSL9 9AZSL9 9BASL9 9BBSL9 9BDSL9 9BESL9 9BGSL9 9BHSL9 9BJSL9 9BLSL9 9BNSL9 9BQSL9 9BWSL9 9DASL9 9DBSL9 9DDSL9 9DESL9 9DGSL9 9DHSL9 9DJSL9 9DLSL9 9DNSL9 9DPSL9 9DQSL9 9DRSL9 9DSSL9 9DTSL9 9DUSL9 9DWSL9 9DXSL9 9DYSL9 9DZSL9 9EASL9 9EBSL9 9EHSL9 9ENSL9 9EQSL9 9ERSL9 9ESSL9 9ETSL9 9EUSL9 9EWSL9 9EXSL9 9EYSL9 9FBSL9 9FDSL9 9FESL9 9FFSL9 9FGSL9 9FHSL9 9FJSL9 9FLSL9 9FNSL9 9FPSL9 9FQSL9 9FRSL9 9FSSL9 9FTSL9 9FUSL9 9FWSL9 9FXSL9 9HASL9 9HBSL9 9HESL9 9HGSL9 9HHSL9 9HJSL9 9HLSL9 9HNSL9 9HPSL9 9HQSL9 9HRSL9 9HSSL9 9HTSL9 9HUSL9 9HWSL9 9HXSL9 9HYSL9 9HZSL9 9JASL9 9JBSL9 9JDSL9 9JESL9 9JFSL9 9JGSL9 9JHSL9 9JJSL9 9JQSL9 9JRSL9 9JSSL9 9JTSL9 9JUSL9 9JYSL9 9JZSL9 9LBSL9 9LDSL9 9LESL9 9LFSL9 9LGSL9 9LHSL9 9LJSL9 9LLSL9 9LNSL9 9LQSL9 9LRSL9 9LSSL9 9LTSL9 9LUSL9 9LWSL9 9LXSL9 9LYSL9 9LZSL9 9NASL9 9NBSL9 9NDSL9 9NESL9 9NFSL9 9NJSL9 9NLSL9 9NNSL9 9NPSL9 9NRSL9 9NSSL9 9NTSL9 9NUSL9 9NWSL9 9NXSL9 9NYSL9 9NZSL9 9PASL9 9PBSL9 9PDSL9 9PESL9 9PFSL9 9PGSL9 9PHSL9 9PJSL9 9PLSL9 9PNSL9 9PPSL9 9PQSL9 9PRSL9 9PWSL9 9QASL9 9QESL9 9QHSL9 9QJSL9 9QLSL9 9QPSL9 9QQSL9 9QRSL9 9QSSL9 9QTSL9 9QUSL9 9QXSL9 9RASL9 9RESL9 9RFSL9 9RJSL9 9RLSL9 9RNSL9 9RPSL9 9RRSL9 9RSSL9 9RUSL9 9RYSL9 9RZSL9 9SASL9 9SBSL9 9SDSL9 9SESL9 9SFSL9 9SGSL9 9SHSL9 9SJSL9 9SLSL9 9SNSL9 9SPSL9 9SQSL9 9SRSL9 9SSSL9 9SWSL9 9SXSL9 9SYSL9 9SZSL9 9TASL9 9TBSL9 9TDSL9 9TFSL9 9TGSL9 9THSL9 9TJSL9 9TLSL9 9TPSL9 9TQSL9 9TRSL9 9TSSL9 9TTSL9 9TUSL9 9TWSL9 9TXSL9 9TYSL9 9TZSL9 9UASL9 9UBSL9 9UDSL9 9UESL9 9ULSL9 9UPSL9 9YZ

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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