YO23 1 postcode sector in the YO23 district

YO23 1 is a sector of the YO23 district: every postcode that starts YO23 1. It has 203 postcodes in use, 8 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 YO23 1 sector, by flood risk

Map of every postcode in the YO23 1 sector, by flood risk Of the 203 postcodes in the YO23 1 sector that ONS places, 19 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 176 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 13 postcodes at high or medium risk; 6 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. A59 YO23 1AA: not on the flood risk listYO23 1AB: not on the flood risk listYO23 1AD: not on the flood risk listYO23 1AE: not on the flood risk listYO23 1AF: not on the flood risk listYO23 1AG: not on the flood risk listYO23 1AH: not on the flood risk listYO23 1AJ: not on the flood risk listYO23 1AL: not on the flood risk listYO23 1AP: not on the flood risk listYO23 1AQ: not on the flood risk listYO23 1AU: not on the flood risk listYO23 1AW: not on the flood risk listYO23 1AX: not on the flood risk listYO23 1BE: not on the flood risk listYO23 1BF: not on the flood risk listYO23 1BG: not on the flood risk listYO23 1BH: not on the flood risk listYO23 1BJ: not on the flood risk listYO23 1BL: not on the flood risk listYO23 1BN: not on the flood risk listYO23 1BP: not on the flood risk listYO23 1BQ: not on the flood risk listYO23 1BR: not on the flood risk listYO23 1BS: not on the flood risk listYO23 1BT: not on the flood risk listYO23 1BU: not on the flood risk listYO23 1BW: not on the flood risk listYO23 1BX: not on the flood risk listYO23 1BY: not on the flood risk listYO23 1BZ: not on the flood risk listYO23 1DA: not on the flood risk listYO23 1DB: not on the flood risk listYO23 1DD: not on the flood risk listYO23 1DE: not on the flood risk listYO23 1DF: not on the flood risk listYO23 1DG: not on the flood risk listYO23 1DH: not on the flood risk listYO23 1DJ: not on the flood risk listYO23 1DL: not on the flood risk listYO23 1DN: not on the flood risk listYO23 1DP: not on the flood risk listYO23 1DQ: not on the flood risk listYO23 1DR: not on the flood risk listYO23 1DS: not on the flood risk listYO23 1DT: not on the flood risk listYO23 1DU: not on the flood risk listYO23 1DW: not on the flood risk listYO23 1DX: not on the flood risk listYO23 1DY: not on the flood risk listYO23 1DZ: not on the flood risk listYO23 1EA: not on the flood risk listYO23 1EB: not on the flood risk listYO23 1ED: not on the flood risk listYO23 1EE: not on the flood risk listYO23 1EF: not on the flood risk listYO23 1EG: not on the flood risk listYO23 1EH: not on the flood risk listYO23 1EJ: not on the flood risk listYO23 1EL: not on the flood risk listYO23 1EN: not on the flood risk listYO23 1EP: not on the flood risk listYO23 1EQ: not on the flood risk listYO23 1ER: not on the flood risk listYO23 1ES: not on the flood risk listYO23 1ET: not on the flood risk listYO23 1EU: not on the flood risk listYO23 1EW: not on the flood risk listYO23 1EX: not on the flood risk listYO23 1EY: not on the flood risk listYO23 1EZ: not on the flood risk listYO23 1FA: not on the flood risk listYO23 1FB: not on the flood risk listYO23 1FD: not on the flood risk listYO23 1FE: not on the flood risk listYO23 1FH: not on the flood risk listYO23 1FJ: not on the flood risk listYO23 1FL: not on the flood risk listYO23 1FN: not on the flood risk listYO23 1FP: not on the flood risk listYO23 1FQ: not on the flood risk listYO23 1FT: not on the flood risk listYO23 1FU: not on the flood risk listYO23 1HA: not on the flood risk listYO23 1HB: not on the flood risk listYO23 1HD: not on the flood risk listYO23 1HE: not on the flood risk listYO23 1HF: not on the flood risk listYO23 1HG: not on the flood risk listYO23 1HH: not on the flood risk listYO23 1HJ: not on the flood risk listYO23 1HL: not on the flood risk listYO23 1HN: not on the flood risk listYO23 1HP: not on the flood risk listYO23 1HQ: not on the flood risk listYO23 1HR: not on the flood risk listYO23 1HS: not on the flood risk listYO23 1HT: not on the flood risk listYO23 1HU: not on the flood risk listYO23 1HW: not on the flood risk listYO23 1HX: not on the flood risk listYO23 1HY: not on the flood risk listYO23 1HZ: not on the flood risk listYO23 1JA: not on the flood risk listYO23 1JB: not on the flood risk listYO23 1JD: not on the flood risk listYO23 1JG: not on the flood risk listYO23 1JH: not on the flood risk listYO23 1JJ: not on the flood risk listYO23 1JL: not on the flood risk listYO23 1JN: not on the flood risk listYO23 1JQ: not on the flood risk listYO23 1JR: not on the flood risk listYO23 1JS: not on the flood risk listYO23 1JT: not on the flood risk listYO23 1JX: not on the flood risk listYO23 1LA: not on the flood risk listYO23 1LD: not on the flood risk listYO23 1LF: not on the flood risk listYO23 1LH: not on the flood risk listYO23 1LJ: not on the flood risk listYO23 1LL: not on the flood risk listYO23 1LP: not on the flood risk listYO23 1LU: not on the flood risk listYO23 1LW: not on the flood risk listYO23 1LY: not on the flood risk listYO23 1NA: not on the flood risk listYO23 1NB: not on the flood risk listYO23 1ND: not on the flood risk listYO23 1NE: not on the flood risk listYO23 1NF: not on the flood risk listYO23 1NG: not on the flood risk listYO23 1NH: not on the flood risk listYO23 1NJ: not on the flood risk listYO23 1NL: not on the flood risk listYO23 1NN: not on the flood risk listYO23 1NP: not on the flood risk listYO23 1NQ: not on the flood risk listYO23 1NR: not on the flood risk listYO23 1NS: not on the flood risk listYO23 1NT: not on the flood risk listYO23 1NU: not on the flood risk listYO23 1NW: not on the flood risk listYO23 1NX: not on the flood risk listYO23 1NY: not on the flood risk listYO23 1NZ: not on the flood risk listYO23 1PA: not on the flood risk listYO23 1PB: not on the flood risk listYO23 1PD: not on the flood risk listYO23 1PE: not on the flood risk listYO23 1PF: not on the flood risk listYO23 1PG: not on the flood risk listYO23 1PJ: not on the flood risk listYO23 1PP: not on the flood risk listYO23 1PQ: not on the flood risk listYO23 1PR: not on the flood risk listYO23 1PS: not on the flood risk listYO23 1PT: not on the flood risk listYO23 1PU: not on the flood risk listYO23 1PW: not on the flood risk listYO23 1PX: not on the flood risk listYO23 1PY: not on the flood risk listYO23 1PZ: not on the flood risk listYO23 1QA: not on the flood risk listYO23 1WF: not on the flood risk listYO23 1WH: not on the flood risk listYO23 1WP: not on the flood risk listYO23 1WS: not on the flood risk listYO23 1YA: not on the flood risk listYO23 1YB: not on the flood risk listYO23 1YD: not on the flood risk listYO23 1YP: not on the flood risk listYO23 1BB: low flood risk at worstYO23 1BD: low flood risk at worstYO23 1JW: low flood risk at worstYO23 1JZ: low flood risk at worstYO23 1LT: low flood risk at worstYO23 1LX: low flood risk at worstYO23 1AZ: medium flood risk at worstYO23 1BA: medium flood risk at worstYO23 1AN: high flood riskYO23 1AR: high flood riskYO23 1AS: high flood riskYO23 1AT: high flood riskYO23 1AY: high flood riskYO23 1FG: high flood riskYO23 1JE: high flood riskYO23 1JF: high flood riskYO23 1JU: high flood riskYO23 1JY: high flood riskYO23 1LB: high flood riskYO23 1LE: high flood riskYO23 1LG: high flood riskYO23 1LN: high flood riskYO23 1LR: high flood riskYO23 1LS: high flood riskYO23 1PH: high flood riskYO23 1PL: high flood riskYO23 1PN: high flood risk York 13 postcodes at high or medium risk, outlined: this goes to YO23 1JF, the one with most homes and businesses at high risk13 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to YO23 1LR, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the YO23 1 sector, by flood risk Of the 203 postcodes in the YO23 1 sector that ONS places, 19 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 176 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 13 postcodes at high or medium risk; 6 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
  • A home or business at high risk: 19
  • At medium risk at worst: 2
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 176
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 203 postcodes in the YO23 1 sector that ONS places, 19 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 176 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

19 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.

YO23 1JF28 at high riskYO23 1AT22 at high riskYO23 1PL18 at high riskYO23 1JE17 at high riskYO23 1AR7 at high riskYO23 1LR6 at high riskYO23 1LN5 at high riskYO23 1AN5 at high riskYO23 1LE4 at high riskYO23 1AY3 at high riskYO23 1LS3 at high riskYO23 1AS2 at high risk

Where the postcodes at high or medium risk lie together

  • 13 postcodes at high or medium risk, outlined on the map. YO23 1JF, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. YO23 1LR, is the one with most homes and businesses at high risk.

What do homes sell for in YO23 1?

Homes in YO23 1 sold for a typical £340,000 in the 12 months to August 2026, across 141 sales, up 4.6% on the 12 months before, HM Land Registry's figures show.

£340,000 typical price, the 12 months to August 2026
£325,000 12 months to August 2025
▲ up 4.6% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £470,000 12 sales
  • Terraced £345,000 99 sales
  • Flat or maisonette £247,500 28 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 YO23 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 YO23 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.

YO23 1AAYO23 1ABYO23 1ADYO23 1AEYO23 1AFYO23 1AGYO23 1AHYO23 1AJYO23 1ALYO23 1ANYO23 1APYO23 1AQYO23 1ARYO23 1ASYO23 1ATYO23 1AUYO23 1AWYO23 1AXYO23 1AYYO23 1AZYO23 1BAYO23 1BBYO23 1BDYO23 1BEYO23 1BFYO23 1BGYO23 1BHYO23 1BJYO23 1BLYO23 1BNYO23 1BPYO23 1BQYO23 1BRYO23 1BSYO23 1BTYO23 1BUYO23 1BWYO23 1BXYO23 1BYYO23 1BZYO23 1DAYO23 1DBYO23 1DDYO23 1DEYO23 1DFYO23 1DGYO23 1DHYO23 1DJYO23 1DLYO23 1DNYO23 1DPYO23 1DQYO23 1DRYO23 1DSYO23 1DTYO23 1DUYO23 1DWYO23 1DXYO23 1DYYO23 1DZYO23 1EAYO23 1EBYO23 1EDYO23 1EEYO23 1EFYO23 1EGYO23 1EHYO23 1EJYO23 1ELYO23 1ENYO23 1EPYO23 1EQYO23 1ERYO23 1ESYO23 1ETYO23 1EUYO23 1EWYO23 1EXYO23 1EYYO23 1EZYO23 1FAYO23 1FBYO23 1FDYO23 1FEYO23 1FFYO23 1FGYO23 1FHYO23 1FJYO23 1FLYO23 1FNYO23 1FPYO23 1FQYO23 1FTYO23 1FUYO23 1HAYO23 1HBYO23 1HDYO23 1HEYO23 1HFYO23 1HGYO23 1HHYO23 1HJYO23 1HLYO23 1HNYO23 1HPYO23 1HQYO23 1HRYO23 1HSYO23 1HTYO23 1HUYO23 1HWYO23 1HXYO23 1HYYO23 1HZYO23 1JAYO23 1JBYO23 1JDYO23 1JEYO23 1JFYO23 1JGYO23 1JHYO23 1JJYO23 1JLYO23 1JNYO23 1JQYO23 1JRYO23 1JSYO23 1JTYO23 1JUYO23 1JWYO23 1JXYO23 1JYYO23 1JZYO23 1LAYO23 1LBYO23 1LDYO23 1LEYO23 1LFYO23 1LGYO23 1LHYO23 1LJYO23 1LLYO23 1LNYO23 1LPYO23 1LRYO23 1LSYO23 1LTYO23 1LUYO23 1LWYO23 1LXYO23 1LYYO23 1LZYO23 1NAYO23 1NBYO23 1NDYO23 1NEYO23 1NFYO23 1NGYO23 1NHYO23 1NJYO23 1NLYO23 1NNYO23 1NPYO23 1NQYO23 1NRYO23 1NSYO23 1NTYO23 1NUYO23 1NWYO23 1NXYO23 1NYYO23 1NZYO23 1PAYO23 1PBYO23 1PDYO23 1PEYO23 1PFYO23 1PGYO23 1PHYO23 1PJYO23 1PLYO23 1PNYO23 1PPYO23 1PQYO23 1PRYO23 1PSYO23 1PTYO23 1PUYO23 1PWYO23 1PXYO23 1PYYO23 1PZYO23 1QAYO23 1WFYO23 1WHYO23 1WPYO23 1WSYO23 1WUYO23 1WXYO23 1YAYO23 1YBYO23 1YDYO23 1YP

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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