OX1 3 postcode sector in the OX1 district

OX1 3 is a sector of the OX1 district: every postcode that starts OX1 3. It has 135 postcodes in use, 66 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 OX1 3 sector, by flood risk

Map of every postcode in the OX1 3 sector, by flood risk Of the 135 postcodes in the OX1 3 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 131 are not on the Environment Agency's at-risk list. Places named: Holywell, Carfax & Jericho. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A420A4144 OX1 3AD: not on the flood risk listOX1 3AE: not on the flood risk listOX1 3AF: not on the flood risk listOX1 3AG: not on the flood risk listOX1 3AJ: not on the flood risk listOX1 3AN: not on the flood risk listOX1 3AQ: not on the flood risk listOX1 3AS: not on the flood risk listOX1 3AZ: not on the flood risk listOX1 3BB: not on the flood risk listOX1 3BD: not on the flood risk listOX1 3BG: not on the flood risk listOX1 3BH: not on the flood risk listOX1 3BJ: not on the flood risk listOX1 3BL: not on the flood risk listOX1 3BN: not on the flood risk listOX1 3BQ: not on the flood risk listOX1 3BS: not on the flood risk listOX1 3BW: not on the flood risk listOX1 3DA: not on the flood risk listOX1 3DD: not on the flood risk listOX1 3DE: not on the flood risk listOX1 3DH: not on the flood risk listOX1 3DN: not on the flood risk listOX1 3DP: not on the flood risk listOX1 3DR: not on the flood risk listOX1 3DS: not on the flood risk listOX1 3DU: not on the flood risk listOX1 3DW: not on the flood risk listOX1 3DX: not on the flood risk listOX1 3DY: not on the flood risk listOX1 3DZ: not on the flood risk listOX1 3EF: not on the flood risk listOX1 3EL: not on the flood risk listOX1 3EU: not on the flood risk listOX1 3EX: not on the flood risk listOX1 3EY: not on the flood risk listOX1 3EZ: not on the flood risk listOX1 3HA: not on the flood risk listOX1 3HB: not on the flood risk listOX1 3HE: not on the flood risk listOX1 3HJ: not on the flood risk listOX1 3HL: not on the flood risk listOX1 3HS: not on the flood risk listOX1 3HY: not on the flood risk listOX1 3HZ: not on the flood risk listOX1 3JB: not on the flood risk listOX1 3JD: not on the flood risk listOX1 3JP: not on the flood risk listOX1 3JS: not on the flood risk listOX1 3LB: not on the flood risk listOX1 3LD: not on the flood risk listOX1 3LE: not on the flood risk listOX1 3LJ: not on the flood risk listOX1 3LU: not on the flood risk listOX1 3LW: not on the flood risk listOX1 3LY: not on the flood risk listOX1 3LZ: not on the flood risk listOX1 3NA: not on the flood risk listOX1 3NP: not on the flood risk listOX1 3PA: not on the flood risk listOX1 3PB: not on the flood risk listOX1 3PD: not on the flood risk listOX1 3PG: not on the flood risk listOX1 3PH: not on the flood risk listOX1 3PJ: not on the flood risk listOX1 3PL: not on the flood risk listOX1 3PN: not on the flood risk listOX1 3PP: not on the flood risk listOX1 3PT: not on the flood risk listOX1 3PU: not on the flood risk listOX1 3PX: not on the flood risk listOX1 3QA: not on the flood risk listOX1 3QD: not on the flood risk listOX1 3QF: not on the flood risk listOX1 3QG: not on the flood risk listOX1 3QP: not on the flood risk listOX1 3QR: not on the flood risk listOX1 3QS: not on the flood risk listOX1 3QT: not on the flood risk listOX1 3QU: not on the flood risk listOX1 3QY: not on the flood risk listOX1 3QZ: not on the flood risk listOX1 3RE: not on the flood risk listOX1 3RF: not on the flood risk listOX1 3RG: not on the flood risk listOX1 3RH: not on the flood risk listOX1 3RJ: not on the flood risk listOX1 3RQ: not on the flood risk listOX1 3SA: not on the flood risk listOX1 3SB: not on the flood risk listOX1 3SD: not on the flood risk listOX1 3SE: not on the flood risk listOX1 3SH: not on the flood risk listOX1 3SP: not on the flood risk listOX1 3SU: not on the flood risk listOX1 3SX: not on the flood risk listOX1 3SZ: not on the flood risk listOX1 3TA: not on the flood risk listOX1 3TB: not on the flood risk listOX1 3TD: not on the flood risk listOX1 3TE: not on the flood risk listOX1 3TF: not on the flood risk listOX1 3TG: not on the flood risk listOX1 3TJ: not on the flood risk listOX1 3TN: not on the flood risk listOX1 3TS: not on the flood risk listOX1 3TU: not on the flood risk listOX1 3TX: not on the flood risk listOX1 3TZ: not on the flood risk listOX1 3UA: not on the flood risk listOX1 3UB: not on the flood risk listOX1 3UH: not on the flood risk listOX1 3UL: not on the flood risk listOX1 3UN: not on the flood risk listOX1 3UP: not on the flood risk listOX1 3UW: not on the flood risk listOX1 3UJ: low flood risk at worstOX1 3JA: medium flood risk at worstOX1 3UQ: medium flood risk at worstOX1 3TP: high flood risk HolywellCarfax & Jericho Map of every postcode in the OX1 3 sector, by flood risk Of the 135 postcodes in the OX1 3 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 131 are not on the Environment Agency's at-risk list. Places named: Holywell, Carfax & Jericho. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. HolywellCarfax & Jericho
  • A home or business at high risk: 1
  • At medium risk at worst: 2
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 131

Of the 135 postcodes in the OX1 3 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 1 are at low risk at worst and 131 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. Names in italics are council wards: we hold no town or village names here.

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.

OX1 3TP2 at high risk

Postcodes in OX1 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.

OX1 3ADOX1 3AEOX1 3AFOX1 3AGOX1 3AJOX1 3ANOX1 3AQOX1 3ASOX1 3AZOX1 3BBOX1 3BDOX1 3BGOX1 3BHOX1 3BJOX1 3BLOX1 3BNOX1 3BQOX1 3BSOX1 3BTOX1 3BUOX1 3BWOX1 3BZOX1 3DAOX1 3DDOX1 3DEOX1 3DHOX1 3DNOX1 3DPOX1 3DQOX1 3DROX1 3DSOX1 3DUOX1 3DWOX1 3DXOX1 3DYOX1 3DZOX1 3EFOX1 3ELOX1 3EQOX1 3EUOX1 3EXOX1 3EYOX1 3EZOX1 3HAOX1 3HBOX1 3HEOX1 3HJOX1 3HLOX1 3HSOX1 3HYOX1 3HZOX1 3JAOX1 3JBOX1 3JDOX1 3JEOX1 3JPOX1 3JSOX1 3LBOX1 3LDOX1 3LEOX1 3LJOX1 3LUOX1 3LWOX1 3LYOX1 3LZOX1 3NAOX1 3NPOX1 3PAOX1 3PBOX1 3PDOX1 3PGOX1 3PHOX1 3PJOX1 3PLOX1 3PNOX1 3PPOX1 3PROX1 3PTOX1 3PUOX1 3PWOX1 3PXOX1 3QAOX1 3QDOX1 3QFOX1 3QGOX1 3QPOX1 3QROX1 3QSOX1 3QTOX1 3QUOX1 3QXOX1 3QYOX1 3QZOX1 3RBOX1 3REOX1 3RFOX1 3RGOX1 3RHOX1 3RJOX1 3RQOX1 3SAOX1 3SBOX1 3SDOX1 3SEOX1 3SHOX1 3SPOX1 3SUOX1 3SXOX1 3SYOX1 3SZOX1 3TAOX1 3TBOX1 3TDOX1 3TEOX1 3TFOX1 3TGOX1 3THOX1 3TJOX1 3TNOX1 3TPOX1 3TSOX1 3TUOX1 3TXOX1 3TZOX1 3UAOX1 3UBOX1 3UHOX1 3UJOX1 3ULOX1 3UNOX1 3UPOX1 3UQOX1 3UROX1 3UWOX1 3ZX

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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