YO21 3 postcode sector in the YO21 district

YO21 3 is a sector of the YO21 district: every postcode that starts YO21 3. It has 240 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 YO21 3 sector, by flood risk

Map of every postcode in the YO21 3 sector, by flood risk Of the 240 postcodes in the YO21 3 sector that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst, 3 are at very low risk only and 229 are not on the Environment Agency's at-risk list. Places named: Whitby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A174 YO21 3AA: not on the flood risk listYO21 3AB: not on the flood risk listYO21 3AE: not on the flood risk listYO21 3AF: not on the flood risk listYO21 3AG: not on the flood risk listYO21 3AH: not on the flood risk listYO21 3AP: not on the flood risk listYO21 3AR: not on the flood risk listYO21 3AS: not on the flood risk listYO21 3BA: not on the flood risk listYO21 3BB: not on the flood risk listYO21 3BH: not on the flood risk listYO21 3BL: not on the flood risk listYO21 3DB: not on the flood risk listYO21 3DD: not on the flood risk listYO21 3DH: not on the flood risk listYO21 3DJ: not on the flood risk listYO21 3DN: not on the flood risk listYO21 3DP: not on the flood risk listYO21 3DQ: not on the flood risk listYO21 3DT: not on the flood risk listYO21 3DU: not on the flood risk listYO21 3DW: not on the flood risk listYO21 3DX: not on the flood risk listYO21 3DY: not on the flood risk listYO21 3EA: not on the flood risk listYO21 3EB: not on the flood risk listYO21 3ED: not on the flood risk listYO21 3EE: not on the flood risk listYO21 3EF: not on the flood risk listYO21 3EG: not on the flood risk listYO21 3EJ: not on the flood risk listYO21 3EL: not on the flood risk listYO21 3EN: not on the flood risk listYO21 3EP: not on the flood risk listYO21 3ER: not on the flood risk listYO21 3EU: not on the flood risk listYO21 3EW: not on the flood risk listYO21 3EX: not on the flood risk listYO21 3EY: not on the flood risk listYO21 3EZ: not on the flood risk listYO21 3FA: not on the flood risk listYO21 3FD: not on the flood risk listYO21 3FE: not on the flood risk listYO21 3FG: not on the flood risk listYO21 3FH: not on the flood risk listYO21 3FJ: not on the flood risk listYO21 3FL: not on the flood risk listYO21 3FN: not on the flood risk listYO21 3FP: not on the flood risk listYO21 3FQ: not on the flood risk listYO21 3FT: not on the flood risk listYO21 3HA: not on the flood risk listYO21 3HB: not on the flood risk listYO21 3HD: not on the flood risk listYO21 3HJ: not on the flood risk listYO21 3HL: not on the flood risk listYO21 3HN: not on the flood risk listYO21 3HR: not on the flood risk listYO21 3HS: not on the flood risk listYO21 3HT: not on the flood risk listYO21 3HX: not on the flood risk listYO21 3HY: not on the flood risk listYO21 3HZ: not on the flood risk listYO21 3JA: not on the flood risk listYO21 3JD: not on the flood risk listYO21 3JE: not on the flood risk listYO21 3JF: not on the flood risk listYO21 3JG: not on the flood risk listYO21 3JH: not on the flood risk listYO21 3JJ: not on the flood risk listYO21 3JL: not on the flood risk listYO21 3JN: not on the flood risk listYO21 3JP: not on the flood risk listYO21 3JR: not on the flood risk listYO21 3JS: not on the flood risk listYO21 3JT: not on the flood risk listYO21 3JU: not on the flood risk listYO21 3JW: not on the flood risk listYO21 3JX: not on the flood risk listYO21 3JY: not on the flood risk listYO21 3JZ: not on the flood risk listYO21 3LE: not on the flood risk listYO21 3LF: not on the flood risk listYO21 3LH: not on the flood risk listYO21 3LL: not on the flood risk listYO21 3LP: not on the flood risk listYO21 3LQ: not on the flood risk listYO21 3LR: not on the flood risk listYO21 3LS: not on the flood risk listYO21 3LT: not on the flood risk listYO21 3LU: not on the flood risk listYO21 3LW: not on the flood risk listYO21 3LX: not on the flood risk listYO21 3LY: not on the flood risk listYO21 3LZ: not on the flood risk listYO21 3NA: not on the flood risk listYO21 3NB: not on the flood risk listYO21 3ND: not on the flood risk listYO21 3NE: not on the flood risk listYO21 3NF: not on the flood risk listYO21 3NH: not on the flood risk listYO21 3NJ: not on the flood risk listYO21 3NL: not on the flood risk listYO21 3NP: not on the flood risk listYO21 3NR: not on the flood risk listYO21 3NT: not on the flood risk listYO21 3NU: not on the flood risk listYO21 3NW: not on the flood risk listYO21 3NX: not on the flood risk listYO21 3PA: not on the flood risk listYO21 3PB: not on the flood risk listYO21 3PD: not on the flood risk listYO21 3PE: not on the flood risk listYO21 3QN: not on the flood risk listYO21 3QP: not on the flood risk listYO21 3QR: not on the flood risk listYO21 3QS: not on the flood risk listYO21 3QT: not on the flood risk listYO21 3QU: not on the flood risk listYO21 3QW: not on the flood risk listYO21 3QX: not on the flood risk listYO21 3QY: not on the flood risk listYO21 3RG: not on the flood risk listYO21 3RJ: not on the flood risk listYO21 3RL: not on the flood risk listYO21 3RN: not on the flood risk listYO21 3RP: not on the flood risk listYO21 3RQ: not on the flood risk listYO21 3RR: not on the flood risk listYO21 3RS: not on the flood risk listYO21 3RT: not on the flood risk listYO21 3RU: not on the flood risk listYO21 3RX: not on the flood risk listYO21 3RY: not on the flood risk listYO21 3RZ: not on the flood risk listYO21 3SA: not on the flood risk listYO21 3SB: not on the flood risk listYO21 3SD: not on the flood risk listYO21 3SE: not on the flood risk listYO21 3SF: not on the flood risk listYO21 3SG: not on the flood risk listYO21 3SH: not on the flood risk listYO21 3SL: not on the flood risk listYO21 3SN: not on the flood risk listYO21 3SQ: not on the flood risk listYO21 3SR: not on the flood risk listYO21 3SX: not on the flood risk listYO21 3TA: not on the flood risk listYO21 3TF: not on the flood risk listYO21 3TG: not on the flood risk listYO21 3TH: not on the flood risk listYO21 3TJ: not on the flood risk listYO21 3TL: not on the flood risk listYO21 3TN: not on the flood risk listYO21 3TP: not on the flood risk listYO21 3TQ: not on the flood risk listYO21 3TW: not on the flood risk listYO21 3UA: not on the flood risk listYO21 3UB: not on the flood risk listYO21 3UD: not on the flood risk listYO21 3UE: not on the flood risk listYO21 3UF: not on the flood risk listYO21 3UG: not on the flood risk listYO21 3UH: not on the flood risk listYO21 3UL: not on the flood risk listYO21 3UP: not on the flood risk listYO21 3UQ: not on the flood risk listYO21 3UR: not on the flood risk listYO21 3PX: very low flood risk onlyYO21 3PR: very low flood risk onlyYO21 3PZ: very low flood risk onlyYO21 3PU: low flood risk at worstYO21 3ST: low flood risk at worstYO21 3SY: low flood risk at worstYO21 3TE: low flood risk at worstYO21 3PW: high flood riskYO21 3PY: high flood riskYO21 3SU: high flood riskYO21 3SZ: high flood risk Whitby Map of every postcode in the YO21 3 sector, by flood risk Of the 240 postcodes in the YO21 3 sector that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst, 3 are at very low risk only and 229 are not on the Environment Agency's at-risk list. Places named: Whitby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. Whitby
  • A home or business at high risk: 4
  • At medium risk at worst: 0
  • At low risk at worst: 4
  • At very low risk only: 3
  • Not on the at-risk list: 229

Of the 240 postcodes in the YO21 3 sector that ONS places, 4 have a home or business at high risk, 4 are at low risk at worst, 3 are at very low risk only and 229 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.

YO21 3SU15 at high riskYO21 3PY4 at high riskYO21 3PW1 at high riskYO21 3SZ1 at high risk

What do homes sell for in YO21 3?

Homes in YO21 3 sold for a typical £235,000 in the 12 months to August 2026, across 65 sales, down 6.4% on the 12 months before, HM Land Registry's figures show.

£235,000 typical price, the 12 months to August 2026
£251,000 12 months to August 2025
▼ down 6.4% on the 12 months before
  • Detached £340,000 17 sales
  • Semi-detached £241,250 14 sales
  • Terraced £242,500 12 sales
  • Flat or maisonette £153,500 22 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 YO21 3. 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 YO21 3

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.

YO21 3AAYO21 3ABYO21 3AEYO21 3AFYO21 3AGYO21 3AHYO21 3AJYO21 3ALYO21 3ANYO21 3APYO21 3ARYO21 3ASYO21 3AWYO21 3BAYO21 3BBYO21 3BDYO21 3BEYO21 3BFYO21 3BGYO21 3BHYO21 3BJYO21 3BLYO21 3BNYO21 3BPYO21 3BQYO21 3BSYO21 3BTYO21 3BUYO21 3BWYO21 3BXYO21 3BYYO21 3BZYO21 3DAYO21 3DBYO21 3DDYO21 3DEYO21 3DFYO21 3DGYO21 3DHYO21 3DJYO21 3DLYO21 3DNYO21 3DPYO21 3DQYO21 3DTYO21 3DUYO21 3DWYO21 3DXYO21 3DYYO21 3DZYO21 3EAYO21 3EBYO21 3EDYO21 3EEYO21 3EFYO21 3EGYO21 3EJYO21 3ELYO21 3ENYO21 3EPYO21 3EQYO21 3ERYO21 3ESYO21 3ETYO21 3EUYO21 3EWYO21 3EXYO21 3EYYO21 3EZYO21 3FAYO21 3FBYO21 3FDYO21 3FEYO21 3FFYO21 3FGYO21 3FHYO21 3FJYO21 3FLYO21 3FNYO21 3FPYO21 3FQYO21 3FRYO21 3FTYO21 3HAYO21 3HBYO21 3HDYO21 3HEYO21 3HFYO21 3HGYO21 3HHYO21 3HJYO21 3HLYO21 3HNYO21 3HQYO21 3HRYO21 3HSYO21 3HTYO21 3HUYO21 3HXYO21 3HYYO21 3HZYO21 3JAYO21 3JBYO21 3JDYO21 3JEYO21 3JFYO21 3JGYO21 3JHYO21 3JJYO21 3JLYO21 3JNYO21 3JPYO21 3JQYO21 3JRYO21 3JSYO21 3JTYO21 3JUYO21 3JWYO21 3JXYO21 3JYYO21 3JZYO21 3LBYO21 3LEYO21 3LFYO21 3LGYO21 3LHYO21 3LJYO21 3LLYO21 3LPYO21 3LQYO21 3LRYO21 3LSYO21 3LTYO21 3LUYO21 3LWYO21 3LXYO21 3LYYO21 3LZYO21 3NAYO21 3NBYO21 3NDYO21 3NEYO21 3NFYO21 3NGYO21 3NHYO21 3NJYO21 3NLYO21 3NNYO21 3NPYO21 3NQYO21 3NRYO21 3NTYO21 3NUYO21 3NWYO21 3NXYO21 3PAYO21 3PBYO21 3PDYO21 3PEYO21 3PFYO21 3PLYO21 3PPYO21 3PRYO21 3PSYO21 3PTYO21 3PUYO21 3PWYO21 3PXYO21 3PYYO21 3PZYO21 3QAYO21 3QBYO21 3QDYO21 3QEYO21 3QFYO21 3QNYO21 3QPYO21 3QRYO21 3QSYO21 3QTYO21 3QUYO21 3QWYO21 3QXYO21 3QYYO21 3RGYO21 3RJYO21 3RLYO21 3RNYO21 3RPYO21 3RQYO21 3RRYO21 3RSYO21 3RTYO21 3RUYO21 3RWYO21 3RXYO21 3RYYO21 3RZYO21 3SAYO21 3SBYO21 3SDYO21 3SEYO21 3SFYO21 3SGYO21 3SHYO21 3SLYO21 3SNYO21 3SQYO21 3SRYO21 3STYO21 3SUYO21 3SXYO21 3SYYO21 3SZYO21 3TAYO21 3TBYO21 3TDYO21 3TEYO21 3TFYO21 3TGYO21 3THYO21 3TJYO21 3TLYO21 3TNYO21 3TPYO21 3TQYO21 3TWYO21 3UAYO21 3UBYO21 3UDYO21 3UEYO21 3UFYO21 3UGYO21 3UHYO21 3UJYO21 3ULYO21 3UNYO21 3UPYO21 3UQYO21 3UR

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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