YO1 9 postcode sector in the YO1 district

YO1 9 is a sector of the YO1 district: every postcode that starts YO1 9. It has 123 postcodes in use, 14 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 YO1 9 sector, by flood risk

Map of every postcode in the YO1 9 sector, by flood risk Of the 123 postcodes in the YO1 9 sector that ONS places, 22 have a home or business at high risk, 34 are at medium risk at worst, 12 are at low risk at worst, 1 are at very low risk only and 54 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 41 postcodes at high or medium risk; 14 postcodes at high or medium risk. Places named: York. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A1036 YO1 9AB: not on the flood risk listYO1 9LB: not on the flood risk listYO1 9NA: not on the flood risk listYO1 9ND: not on the flood risk listYO1 9NG: not on the flood risk listYO1 9NJ: not on the flood risk listYO1 9NP: not on the flood risk listYO1 9NQ: not on the flood risk listYO1 9NR: not on the flood risk listYO1 9NT: not on the flood risk listYO1 9NU: not on the flood risk listYO1 9NW: not on the flood risk listYO1 9NY: not on the flood risk listYO1 9PH: not on the flood risk listYO1 9PT: not on the flood risk listYO1 9PU: not on the flood risk listYO1 9PX: not on the flood risk listYO1 9PZ: not on the flood risk listYO1 9QB: not on the flood risk listYO1 9QE: not on the flood risk listYO1 9QF: not on the flood risk listYO1 9QG: not on the flood risk listYO1 9QH: not on the flood risk listYO1 9QP: not on the flood risk listYO1 9QQ: not on the flood risk listYO1 9QR: not on the flood risk listYO1 9QY: not on the flood risk listYO1 9RL: not on the flood risk listYO1 9RN: not on the flood risk listYO1 9RP: not on the flood risk listYO1 9RY: not on the flood risk listYO1 9TP: not on the flood risk listYO1 9TQ: not on the flood risk listYO1 9TR: not on the flood risk listYO1 9TS: not on the flood risk listYO1 9TW: not on the flood risk listYO1 9TY: not on the flood risk listYO1 9TZ: not on the flood risk listYO1 9UA: not on the flood risk listYO1 9UB: not on the flood risk listYO1 9UD: not on the flood risk listYO1 9UE: not on the flood risk listYO1 9UF: not on the flood risk listYO1 9UG: not on the flood risk listYO1 9UP: not on the flood risk listYO1 9UT: not on the flood risk listYO1 9UW: not on the flood risk listYO1 9WD: not on the flood risk listYO1 9WT: not on the flood risk listYO1 9WZ: not on the flood risk listYO1 9XG: not on the flood risk listYO1 9XQ: not on the flood risk listYO1 9YN: not on the flood risk listYO1 9QN: very low flood risk onlyYO1 9AD: low flood risk at worstYO1 9PL: low flood risk at worstYO1 9QA: low flood risk at worstYO1 9QT: low flood risk at worstYO1 9RD: low flood risk at worstYO1 9RG: low flood risk at worstYO1 9RH: low flood risk at worstYO1 9RJ: low flood risk at worstYO1 9SB: low flood risk at worstYO1 9SQ: low flood risk at worstYO1 9WL: low flood risk at worstYO1 9WY: low flood risk at worstYO1 9AA: medium flood risk at worstYO1 9AE: medium flood risk at worstYO1 9AF: medium flood risk at worstYO1 9AG: medium flood risk at worstYO1 9NX: medium flood risk at worstYO1 9PA: medium flood risk at worstYO1 9PB: medium flood risk at worstYO1 9PD: medium flood risk at worstYO1 9PG: medium flood risk at worstYO1 9PN: medium flood risk at worstYO1 9PP: medium flood risk at worstYO1 9QD: medium flood risk at worstYO1 9QJ: medium flood risk at worstYO1 9SE: medium flood risk at worstYO1 9SG: medium flood risk at worstYO1 9ST: medium flood risk at worstYO1 9SU: medium flood risk at worstYO1 9SX: medium flood risk at worstYO1 9SY: medium flood risk at worstYO1 9TA: medium flood risk at worstYO1 9TL: medium flood risk at worstYO1 9TT: medium flood risk at worstYO1 9TU: medium flood risk at worstYO1 9TX: medium flood risk at worstYO1 9UH: medium flood risk at worstYO1 9UJ: medium flood risk at worstYO1 9UQ: medium flood risk at worstYO1 9UR: medium flood risk at worstYO1 9US: medium flood risk at worstYO1 9WB: medium flood risk at worstYO1 9XA: medium flood risk at worstYO1 9XD: medium flood risk at worstYO1 9XF: medium flood risk at worstYO1 9QL: high flood riskYO1 9QU: high flood riskYO1 9QX: high flood riskYO1 9RE: high flood riskYO1 9RF: high flood riskYO1 9RS: high flood riskYO1 9RZ: high flood riskYO1 9SA: high flood riskYO1 9SF: high flood riskYO1 9SH: high flood riskYO1 9SJ: high flood riskYO1 9SL: high flood riskYO1 9SN: high flood riskYO1 9SP: high flood riskYO1 9SW: high flood riskYO1 9TB: high flood riskYO1 9TF: high flood riskYO1 9TJ: high flood riskYO1 9TN: high flood riskYO1 9UL: high flood riskYO1 9WJ: high flood riskYO1 9WP: high flood risk York 41 postcodes at high or medium risk, outlined: this goes to YO1 9RF, the one with most homes and businesses at high risk41 postcodes at high or medium risk14 postcodes at high or medium risk, outlined: this goes to YO1 9SF, the one with most homes and businesses at high risk14 postcodes at high or medium risk Map of every postcode in the YO1 9 sector, by flood risk Of the 123 postcodes in the YO1 9 sector that ONS places, 22 have a home or business at high risk, 34 are at medium risk at worst, 12 are at low risk at worst, 1 are at very low risk only and 54 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 41 postcodes at high or medium risk; 14 postcodes at high or medium risk. Places named: York. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. York 14 postcodes at high or medium risk, outlined: this goes to YO1 9SF, the one with most homes and businesses at high risk14 postcodes at high or medium risk
  • A home or business at high risk: 22
  • At medium risk at worst: 34
  • At low risk at worst: 12
  • At very low risk only: 1
  • Not on the at-risk list: 54
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 123 postcodes in the YO1 9 sector that ONS places, 22 have a home or business at high risk, 34 are at medium risk at worst, 12 are at low risk at worst, 1 are at very low risk only and 54 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.

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

22 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.

YO1 9RF60 at high riskYO1 9SF15 at high riskYO1 9SP14 at high riskYO1 9SA13 at high riskYO1 9QX10 at high riskYO1 9RZ9 at high riskYO1 9SW9 at high riskYO1 9WP8 at high riskYO1 9SN7 at high riskYO1 9SL6 at high riskYO1 9RS6 at high riskYO1 9TN5 at high risk

Where the postcodes at high or medium risk lie together

  • 41 postcodes at high or medium risk, outlined on the map. YO1 9RF, is the one with most homes and businesses at high risk.
  • 14 postcodes at high or medium risk, outlined on the map. YO1 9SF, is the one with most homes and businesses at high risk.

What do homes sell for in YO1 9?

Homes in YO1 9 sold for a typical £240,000 in the 12 months to August 2026, across 14 sales, down 34.7% on the 12 months before, HM Land Registry's figures show.

£240,000 typical price, the 12 months to August 2026
£367,500 12 months to August 2025
▼ down 34.7% on the 12 months before
  • Detached 1 sale, too few to price
  • Terraced 3 sales, too few to price
  • Flat or maisonette £214,750 10 sales

Standard sales of homes at market value at the postcodes that start YO1 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 YO1 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.

YO1 9AAYO1 9ABYO1 9ADYO1 9AEYO1 9AFYO1 9AGYO1 9LBYO1 9NAYO1 9NDYO1 9NGYO1 9NJYO1 9NPYO1 9NQYO1 9NRYO1 9NTYO1 9NUYO1 9NWYO1 9NXYO1 9NYYO1 9PAYO1 9PBYO1 9PDYO1 9PGYO1 9PHYO1 9PLYO1 9PNYO1 9PPYO1 9PTYO1 9PUYO1 9PXYO1 9PZYO1 9QAYO1 9QBYO1 9QDYO1 9QEYO1 9QFYO1 9QGYO1 9QHYO1 9QJYO1 9QLYO1 9QNYO1 9QPYO1 9QQYO1 9QRYO1 9QTYO1 9QUYO1 9QXYO1 9QYYO1 9RDYO1 9REYO1 9RFYO1 9RGYO1 9RHYO1 9RJYO1 9RLYO1 9RNYO1 9RPYO1 9RSYO1 9RYYO1 9RZYO1 9SAYO1 9SBYO1 9SEYO1 9SFYO1 9SGYO1 9SHYO1 9SJYO1 9SLYO1 9SNYO1 9SPYO1 9SQYO1 9STYO1 9SUYO1 9SWYO1 9SXYO1 9SYYO1 9SZYO1 9TAYO1 9TBYO1 9TFYO1 9TJYO1 9TLYO1 9TNYO1 9TPYO1 9TQYO1 9TRYO1 9TSYO1 9TTYO1 9TUYO1 9TWYO1 9TXYO1 9TYYO1 9TZYO1 9UAYO1 9UBYO1 9UDYO1 9UEYO1 9UFYO1 9UGYO1 9UHYO1 9UJYO1 9ULYO1 9UPYO1 9UQYO1 9URYO1 9USYO1 9UTYO1 9UWYO1 9WBYO1 9WDYO1 9WJYO1 9WLYO1 9WPYO1 9WTYO1 9WYYO1 9WZYO1 9XAYO1 9XDYO1 9XFYO1 9XGYO1 9XQYO1 9YNYO1 9YW

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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