S40 4 postcode sector in the S40 district

S40 4 is a sector of the S40 district: every postcode that starts S40 4. It has 306 postcodes in use, 2 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 S40 4 sector, by flood risk

Map of every postcode in the S40 4 sector, by flood risk Of the 306 postcodes in the S40 4 sector that ONS places, 2 are at low risk at worst and 304 are not on the Environment Agency's at-risk list. Places named: Chesterfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. S40 4AA: not on the flood risk listS40 4AE: not on the flood risk listS40 4AF: not on the flood risk listS40 4AG: not on the flood risk listS40 4AJ: not on the flood risk listS40 4AL: not on the flood risk listS40 4AN: not on the flood risk listS40 4AP: not on the flood risk listS40 4AQ: not on the flood risk listS40 4AR: not on the flood risk listS40 4AS: not on the flood risk listS40 4AT: not on the flood risk listS40 4AU: not on the flood risk listS40 4AW: not on the flood risk listS40 4AY: not on the flood risk listS40 4AZ: not on the flood risk listS40 4BA: not on the flood risk listS40 4BB: not on the flood risk listS40 4BD: not on the flood risk listS40 4BF: not on the flood risk listS40 4BJ: not on the flood risk listS40 4BL: not on the flood risk listS40 4BN: not on the flood risk listS40 4BP: not on the flood risk listS40 4BS: not on the flood risk listS40 4BT: not on the flood risk listS40 4BU: not on the flood risk listS40 4BW: not on the flood risk listS40 4BX: not on the flood risk listS40 4BY: not on the flood risk listS40 4BZ: not on the flood risk listS40 4DA: not on the flood risk listS40 4DB: not on the flood risk listS40 4DD: not on the flood risk listS40 4DE: not on the flood risk listS40 4DF: not on the flood risk listS40 4DG: not on the flood risk listS40 4DH: not on the flood risk listS40 4DJ: not on the flood risk listS40 4DL: not on the flood risk listS40 4DN: not on the flood risk listS40 4DP: not on the flood risk listS40 4DQ: not on the flood risk listS40 4DR: not on the flood risk listS40 4DS: not on the flood risk listS40 4DT: not on the flood risk listS40 4DU: not on the flood risk listS40 4DW: not on the flood risk listS40 4DX: not on the flood risk listS40 4DY: not on the flood risk listS40 4DZ: not on the flood risk listS40 4EA: not on the flood risk listS40 4EB: not on the flood risk listS40 4ED: not on the flood risk listS40 4EE: not on the flood risk listS40 4EF: not on the flood risk listS40 4EG: not on the flood risk listS40 4EH: not on the flood risk listS40 4EJ: not on the flood risk listS40 4EN: not on the flood risk listS40 4EP: not on the flood risk listS40 4EQ: not on the flood risk listS40 4ER: not on the flood risk listS40 4ES: not on the flood risk listS40 4ET: not on the flood risk listS40 4EU: not on the flood risk listS40 4EW: not on the flood risk listS40 4EX: not on the flood risk listS40 4EY: not on the flood risk listS40 4EZ: not on the flood risk listS40 4FB: not on the flood risk listS40 4FD: not on the flood risk listS40 4FE: not on the flood risk listS40 4FS: not on the flood risk listS40 4FU: not on the flood risk listS40 4FW: not on the flood risk listS40 4FX: not on the flood risk listS40 4GA: not on the flood risk listS40 4GH: not on the flood risk listS40 4HA: not on the flood risk listS40 4HB: not on the flood risk listS40 4HD: not on the flood risk listS40 4HF: not on the flood risk listS40 4HG: not on the flood risk listS40 4HH: not on the flood risk listS40 4HJ: not on the flood risk listS40 4HL: not on the flood risk listS40 4HN: not on the flood risk listS40 4HP: not on the flood risk listS40 4HQ: not on the flood risk listS40 4HR: not on the flood risk listS40 4HS: not on the flood risk listS40 4HT: not on the flood risk listS40 4HW: not on the flood risk listS40 4HX: not on the flood risk listS40 4HY: not on the flood risk listS40 4HZ: not on the flood risk listS40 4JA: not on the flood risk listS40 4JB: not on the flood risk listS40 4JD: not on the flood risk listS40 4JE: not on the flood risk listS40 4JF: not on the flood risk listS40 4JG: not on the flood risk listS40 4JH: not on the flood risk listS40 4JJ: not on the flood risk listS40 4JN: not on the flood risk listS40 4JP: not on the flood risk listS40 4JR: not on the flood risk listS40 4JS: not on the flood risk listS40 4JT: not on the flood risk listS40 4JU: not on the flood risk listS40 4JW: not on the flood risk listS40 4JX: not on the flood risk listS40 4JY: not on the flood risk listS40 4LA: not on the flood risk listS40 4LB: not on the flood risk listS40 4LD: not on the flood risk listS40 4LE: not on the flood risk listS40 4LF: not on the flood risk listS40 4LG: not on the flood risk listS40 4LH: not on the flood risk listS40 4LJ: not on the flood risk listS40 4LL: not on the flood risk listS40 4LN: not on the flood risk listS40 4LP: not on the flood risk listS40 4LQ: not on the flood risk listS40 4LR: not on the flood risk listS40 4LS: not on the flood risk listS40 4LT: not on the flood risk listS40 4LU: not on the flood risk listS40 4LW: not on the flood risk listS40 4LX: not on the flood risk listS40 4LY: not on the flood risk listS40 4LZ: not on the flood risk listS40 4NA: not on the flood risk listS40 4NB: not on the flood risk listS40 4ND: not on the flood risk listS40 4NE: not on the flood risk listS40 4NF: not on the flood risk listS40 4NG: not on the flood risk listS40 4NH: not on the flood risk listS40 4NJ: not on the flood risk listS40 4NN: not on the flood risk listS40 4NP: not on the flood risk listS40 4NQ: not on the flood risk listS40 4NR: not on the flood risk listS40 4NS: not on the flood risk listS40 4NT: not on the flood risk listS40 4NU: not on the flood risk listS40 4NW: not on the flood risk listS40 4NX: not on the flood risk listS40 4NY: not on the flood risk listS40 4NZ: not on the flood risk listS40 4PA: not on the flood risk listS40 4PB: not on the flood risk listS40 4PD: not on the flood risk listS40 4PE: not on the flood risk listS40 4PF: not on the flood risk listS40 4PG: not on the flood risk listS40 4PH: not on the flood risk listS40 4PJ: not on the flood risk listS40 4PL: not on the flood risk listS40 4PN: not on the flood risk listS40 4PP: not on the flood risk listS40 4PQ: not on the flood risk listS40 4PR: not on the flood risk listS40 4PS: not on the flood risk listS40 4PT: not on the flood risk listS40 4PU: not on the flood risk listS40 4PW: not on the flood risk listS40 4PX: not on the flood risk listS40 4PY: not on the flood risk listS40 4PZ: not on the flood risk listS40 4QA: not on the flood risk listS40 4QB: not on the flood risk listS40 4QD: not on the flood risk listS40 4QE: not on the flood risk listS40 4QF: not on the flood risk listS40 4QG: not on the flood risk listS40 4QH: not on the flood risk listS40 4QJ: not on the flood risk listS40 4QL: not on the flood risk listS40 4QN: not on the flood risk listS40 4QP: not on the flood risk listS40 4QQ: not on the flood risk listS40 4QR: not on the flood risk listS40 4QS: not on the flood risk listS40 4QT: not on the flood risk listS40 4QU: not on the flood risk listS40 4QW: not on the flood risk listS40 4QX: not on the flood risk listS40 4QY: not on the flood risk listS40 4QZ: not on the flood risk listS40 4RB: not on the flood risk listS40 4RD: not on the flood risk listS40 4RE: not on the flood risk listS40 4RF: not on the flood risk listS40 4RG: not on the flood risk listS40 4RH: not on the flood risk listS40 4RJ: not on the flood risk listS40 4RL: not on the flood risk listS40 4RN: not on the flood risk listS40 4RP: not on the flood risk listS40 4RQ: not on the flood risk listS40 4RR: not on the flood risk listS40 4RS: not on the flood risk listS40 4RT: not on the flood risk listS40 4RU: not on the flood risk listS40 4RW: not on the flood risk listS40 4RX: not on the flood risk listS40 4RY: not on the flood risk listS40 4RZ: not on the flood risk listS40 4SA: not on the flood risk listS40 4SD: not on the flood risk listS40 4SF: not on the flood risk listS40 4SG: not on the flood risk listS40 4SH: not on the flood risk listS40 4SJ: not on the flood risk listS40 4SL: not on the flood risk listS40 4SN: not on the flood risk listS40 4SP: not on the flood risk listS40 4SQ: not on the flood risk listS40 4SR: not on the flood risk listS40 4SS: not on the flood risk listS40 4ST: not on the flood risk listS40 4SU: not on the flood risk listS40 4SW: not on the flood risk listS40 4SX: not on the flood risk listS40 4SY: not on the flood risk listS40 4SZ: not on the flood risk listS40 4TA: not on the flood risk listS40 4TB: not on the flood risk listS40 4TD: not on the flood risk listS40 4TE: not on the flood risk listS40 4TF: not on the flood risk listS40 4TG: not on the flood risk listS40 4TH: not on the flood risk listS40 4TJ: not on the flood risk listS40 4TL: not on the flood risk listS40 4TN: not on the flood risk listS40 4TP: not on the flood risk listS40 4TQ: not on the flood risk listS40 4TR: not on the flood risk listS40 4TS: not on the flood risk listS40 4TT: not on the flood risk listS40 4TU: not on the flood risk listS40 4TW: not on the flood risk listS40 4TY: not on the flood risk listS40 4UA: not on the flood risk listS40 4UB: not on the flood risk listS40 4UD: not on the flood risk listS40 4UE: not on the flood risk listS40 4UF: not on the flood risk listS40 4UG: not on the flood risk listS40 4UH: not on the flood risk listS40 4UJ: not on the flood risk listS40 4UL: not on the flood risk listS40 4UN: not on the flood risk listS40 4UP: not on the flood risk listS40 4UQ: not on the flood risk listS40 4UR: not on the flood risk listS40 4US: not on the flood risk listS40 4UT: not on the flood risk listS40 4UU: not on the flood risk listS40 4UW: not on the flood risk listS40 4UX: not on the flood risk listS40 4UY: not on the flood risk listS40 4UZ: not on the flood risk listS40 4WA: not on the flood risk listS40 4WB: not on the flood risk listS40 4WD: not on the flood risk listS40 4WG: not on the flood risk listS40 4XA: not on the flood risk listS40 4XB: not on the flood risk listS40 4XD: not on the flood risk listS40 4XE: not on the flood risk listS40 4XF: not on the flood risk listS40 4XG: not on the flood risk listS40 4XH: not on the flood risk listS40 4XJ: not on the flood risk listS40 4XL: not on the flood risk listS40 4XN: not on the flood risk listS40 4XP: not on the flood risk listS40 4XQ: not on the flood risk listS40 4XR: not on the flood risk listS40 4XS: not on the flood risk listS40 4XT: not on the flood risk listS40 4XU: not on the flood risk listS40 4XW: not on the flood risk listS40 4XX: not on the flood risk listS40 4XY: not on the flood risk listS40 4XZ: not on the flood risk listS40 4YA: not on the flood risk listS40 4YB: not on the flood risk listS40 4YD: not on the flood risk listS40 4YE: not on the flood risk listS40 4YF: not on the flood risk listS40 4YG: not on the flood risk listS40 4YH: not on the flood risk listS40 4AH: low flood risk at worstS40 4AX: low flood risk at worst Chesterfield Map of every postcode in the S40 4 sector, by flood risk Of the 306 postcodes in the S40 4 sector that ONS places, 2 are at low risk at worst and 304 are not on the Environment Agency's at-risk list. Places named: Chesterfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Chesterfield
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 304

Of the 306 postcodes in the S40 4 sector that ONS places, 2 are at low risk at worst and 304 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

What do homes sell for in S40 4?

Homes in S40 4 sold for a typical £210,000 in the 12 months to August 2026, across 174 sales, down 6.7% on the 12 months before, HM Land Registry's figures show.

£210,000 typical price, the 12 months to August 2026
£225,000 12 months to August 2025
▼ down 6.7% on the 12 months before
  • Detached £335,250 40 sales
  • Semi-detached £220,000 80 sales
  • Terraced £162,500 22 sales
  • Flat or maisonette £115,500 32 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 S40 4. 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 S40 4

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.

S40 4AAS40 4AES40 4AFS40 4AGS40 4AHS40 4AJS40 4ALS40 4ANS40 4APS40 4AQS40 4ARS40 4ASS40 4ATS40 4AUS40 4AWS40 4AXS40 4AYS40 4AZS40 4BAS40 4BBS40 4BDS40 4BFS40 4BJS40 4BLS40 4BNS40 4BPS40 4BSS40 4BTS40 4BUS40 4BWS40 4BXS40 4BYS40 4BZS40 4DAS40 4DBS40 4DDS40 4DES40 4DFS40 4DGS40 4DHS40 4DJS40 4DLS40 4DNS40 4DPS40 4DQS40 4DRS40 4DSS40 4DTS40 4DUS40 4DWS40 4DXS40 4DYS40 4DZS40 4EAS40 4EBS40 4EDS40 4EES40 4EFS40 4EGS40 4EHS40 4EJS40 4ENS40 4EPS40 4EQS40 4ERS40 4ESS40 4ETS40 4EUS40 4EWS40 4EXS40 4EYS40 4EZS40 4FBS40 4FDS40 4FES40 4FSS40 4FUS40 4FWS40 4FXS40 4GAS40 4GHS40 4HAS40 4HBS40 4HDS40 4HFS40 4HGS40 4HHS40 4HJS40 4HLS40 4HNS40 4HPS40 4HQS40 4HRS40 4HSS40 4HTS40 4HUS40 4HWS40 4HXS40 4HYS40 4HZS40 4JAS40 4JBS40 4JDS40 4JES40 4JFS40 4JGS40 4JHS40 4JJS40 4JLS40 4JNS40 4JPS40 4JQS40 4JRS40 4JSS40 4JTS40 4JUS40 4JWS40 4JXS40 4JYS40 4JZS40 4LAS40 4LBS40 4LDS40 4LES40 4LFS40 4LGS40 4LHS40 4LJS40 4LLS40 4LNS40 4LPS40 4LQS40 4LRS40 4LSS40 4LTS40 4LUS40 4LWS40 4LXS40 4LYS40 4LZS40 4NAS40 4NBS40 4NDS40 4NES40 4NFS40 4NGS40 4NHS40 4NJS40 4NNS40 4NPS40 4NQS40 4NRS40 4NSS40 4NTS40 4NUS40 4NWS40 4NXS40 4NYS40 4NZS40 4PAS40 4PBS40 4PDS40 4PES40 4PFS40 4PGS40 4PHS40 4PJS40 4PLS40 4PNS40 4PPS40 4PQS40 4PRS40 4PSS40 4PTS40 4PUS40 4PWS40 4PXS40 4PYS40 4PZS40 4QAS40 4QBS40 4QDS40 4QES40 4QFS40 4QGS40 4QHS40 4QJS40 4QLS40 4QNS40 4QPS40 4QQS40 4QRS40 4QSS40 4QTS40 4QUS40 4QWS40 4QXS40 4QYS40 4QZS40 4RAS40 4RBS40 4RDS40 4RES40 4RFS40 4RGS40 4RHS40 4RJS40 4RLS40 4RNS40 4RPS40 4RQS40 4RRS40 4RSS40 4RTS40 4RUS40 4RWS40 4RXS40 4RYS40 4RZS40 4SAS40 4SDS40 4SFS40 4SGS40 4SHS40 4SJS40 4SLS40 4SNS40 4SPS40 4SQS40 4SRS40 4SSS40 4STS40 4SUS40 4SWS40 4SXS40 4SYS40 4SZS40 4TAS40 4TBS40 4TDS40 4TES40 4TFS40 4TGS40 4THS40 4TJS40 4TLS40 4TNS40 4TPS40 4TQS40 4TRS40 4TSS40 4TTS40 4TUS40 4TWS40 4TYS40 4UAS40 4UBS40 4UDS40 4UES40 4UFS40 4UGS40 4UHS40 4UJS40 4ULS40 4UNS40 4UPS40 4UQS40 4URS40 4USS40 4UTS40 4UUS40 4UWS40 4UXS40 4UYS40 4UZS40 4WAS40 4WBS40 4WDS40 4WGS40 4XAS40 4XBS40 4XDS40 4XES40 4XFS40 4XGS40 4XHS40 4XJS40 4XLS40 4XNS40 4XPS40 4XQS40 4XRS40 4XSS40 4XTS40 4XUS40 4XWS40 4XXS40 4XYS40 4XZS40 4YAS40 4YBS40 4YDS40 4YES40 4YFS40 4YGS40 4YH

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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