S18 1 postcode sector in the S18 district

S18 1 is a sector of the S18 district: every postcode that starts S18 1. It has 160 postcodes in use, 4 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 S18 1 sector, by flood risk

Map of every postcode in the S18 1 sector, by flood risk Of the 160 postcodes in the S18 1 sector that ONS places, 2 have a home or business at high risk and 158 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Dronfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. S18 1AA: not on the flood risk listS18 1AB: not on the flood risk listS18 1DJ: not on the flood risk listS18 1LS: not on the flood risk listS18 1LY: not on the flood risk listS18 1NA: not on the flood risk listS18 1NB: not on the flood risk listS18 1ND: not on the flood risk listS18 1NE: not on the flood risk listS18 1NF: not on the flood risk listS18 1NG: not on the flood risk listS18 1NH: not on the flood risk listS18 1NJ: not on the flood risk listS18 1NL: not on the flood risk listS18 1NQ: not on the flood risk listS18 1NT: not on the flood risk listS18 1NW: not on the flood risk listS18 1NX: not on the flood risk listS18 1NY: not on the flood risk listS18 1NZ: not on the flood risk listS18 1PA: not on the flood risk listS18 1PB: not on the flood risk listS18 1PD: not on the flood risk listS18 1PE: not on the flood risk listS18 1PF: not on the flood risk listS18 1PG: not on the flood risk listS18 1PH: not on the flood risk listS18 1PJ: not on the flood risk listS18 1PL: not on the flood risk listS18 1PN: not on the flood risk listS18 1PP: not on the flood risk listS18 1PQ: not on the flood risk listS18 1PR: not on the flood risk listS18 1PS: not on the flood risk listS18 1PT: not on the flood risk listS18 1PU: not on the flood risk listS18 1PW: not on the flood risk listS18 1PX: not on the flood risk listS18 1PY: not on the flood risk listS18 1PZ: not on the flood risk listS18 1QA: not on the flood risk listS18 1QB: not on the flood risk listS18 1QE: not on the flood risk listS18 1QF: not on the flood risk listS18 1QG: not on the flood risk listS18 1QH: not on the flood risk listS18 1QJ: not on the flood risk listS18 1QL: not on the flood risk listS18 1QN: not on the flood risk listS18 1QP: not on the flood risk listS18 1QQ: not on the flood risk listS18 1QR: not on the flood risk listS18 1QS: not on the flood risk listS18 1QT: not on the flood risk listS18 1QU: not on the flood risk listS18 1QW: not on the flood risk listS18 1QX: not on the flood risk listS18 1QY: not on the flood risk listS18 1QZ: not on the flood risk listS18 1RA: not on the flood risk listS18 1RB: not on the flood risk listS18 1RD: not on the flood risk listS18 1RE: not on the flood risk listS18 1RF: not on the flood risk listS18 1RG: not on the flood risk listS18 1RH: not on the flood risk listS18 1RJ: not on the flood risk listS18 1RL: not on the flood risk listS18 1RN: not on the flood risk listS18 1RP: not on the flood risk listS18 1RQ: not on the flood risk listS18 1RR: not on the flood risk listS18 1RS: not on the flood risk listS18 1RU: not on the flood risk listS18 1RW: not on the flood risk listS18 1RX: not on the flood risk listS18 1RY: not on the flood risk listS18 1RZ: not on the flood risk listS18 1SA: not on the flood risk listS18 1SD: not on the flood risk listS18 1SE: not on the flood risk listS18 1SF: not on the flood risk listS18 1SG: not on the flood risk listS18 1SH: not on the flood risk listS18 1SJ: not on the flood risk listS18 1SL: not on the flood risk listS18 1SN: not on the flood risk listS18 1SP: not on the flood risk listS18 1SQ: not on the flood risk listS18 1SR: not on the flood risk listS18 1SS: not on the flood risk listS18 1ST: not on the flood risk listS18 1SU: not on the flood risk listS18 1SX: not on the flood risk listS18 1SY: not on the flood risk listS18 1SZ: not on the flood risk listS18 1TA: not on the flood risk listS18 1TB: not on the flood risk listS18 1TD: not on the flood risk listS18 1TE: not on the flood risk listS18 1TF: not on the flood risk listS18 1TG: not on the flood risk listS18 1TQ: not on the flood risk listS18 1TR: not on the flood risk listS18 1TW: not on the flood risk listS18 1TX: not on the flood risk listS18 1TY: not on the flood risk listS18 1TZ: not on the flood risk listS18 1UA: not on the flood risk listS18 1UB: not on the flood risk listS18 1UD: not on the flood risk listS18 1UE: not on the flood risk listS18 1UF: not on the flood risk listS18 1UG: not on the flood risk listS18 1UH: not on the flood risk listS18 1UJ: not on the flood risk listS18 1UL: not on the flood risk listS18 1UN: not on the flood risk listS18 1UQ: not on the flood risk listS18 1UR: not on the flood risk listS18 1US: not on the flood risk listS18 1UT: not on the flood risk listS18 1UU: not on the flood risk listS18 1UW: not on the flood risk listS18 1UX: not on the flood risk listS18 1UY: not on the flood risk listS18 1UZ: not on the flood risk listS18 1WA: not on the flood risk listS18 1WB: not on the flood risk listS18 1WD: not on the flood risk listS18 1WE: not on the flood risk listS18 1WF: not on the flood risk listS18 1WG: not on the flood risk listS18 1WH: not on the flood risk listS18 1WJ: not on the flood risk listS18 1WL: not on the flood risk listS18 1WN: not on the flood risk listS18 1WQ: not on the flood risk listS18 1XG: not on the flood risk listS18 1XH: not on the flood risk listS18 1XJ: not on the flood risk listS18 1XW: not on the flood risk listS18 1XX: not on the flood risk listS18 1XY: not on the flood risk listS18 1YA: not on the flood risk listS18 1YB: not on the flood risk listS18 1YD: not on the flood risk listS18 1YE: not on the flood risk listS18 1YF: not on the flood risk listS18 1YG: not on the flood risk listS18 1YH: not on the flood risk listS18 1YJ: not on the flood risk listS18 1YL: not on the flood risk listS18 1YN: not on the flood risk listS18 1YP: not on the flood risk listS18 1YQ: not on the flood risk listS18 1QD: high flood riskS18 1SB: high flood risk Dronfield Map of every postcode in the S18 1 sector, by flood risk Of the 160 postcodes in the S18 1 sector that ONS places, 2 have a home or business at high risk and 158 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Dronfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Dronfield
  • A home or business at high risk: 2
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 158

Of the 160 postcodes in the S18 1 sector that ONS places, 2 have a home or business at high risk and 158 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.

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

What do homes sell for in S18 1?

Homes in S18 1 sold for a typical £307,000 in the 12 months to August 2026, across 75 sales, up 6% on the 12 months before, HM Land Registry's figures show.

£307,000 typical price, the 12 months to August 2026
£289,750 12 months to August 2025
▲ up 6% on the 12 months before
  • Detached £387,500 28 sales
  • Semi-detached £286,500 34 sales
  • Terraced £188,255 8 sales
  • Flat or maisonette £117,500 5 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 S18 1. 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 S18 1

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.

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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