NN18 9 postcode sector in the NN18 district

NN18 9 is a sector of the NN18 district: every postcode that starts NN18 9. It has 166 postcodes in use, 3 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 NN18 9 sector, by flood risk

Map of every postcode in the NN18 9 sector, by flood risk Of the 166 postcodes in the NN18 9 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 163 are not on the Environment Agency's at-risk list. Places named: Corby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A43A427 NN18 9AA: not on the flood risk listNN18 9AB: not on the flood risk listNN18 9AD: not on the flood risk listNN18 9AE: not on the flood risk listNN18 9AF: not on the flood risk listNN18 9AG: not on the flood risk listNN18 9AH: not on the flood risk listNN18 9AJ: not on the flood risk listNN18 9AL: not on the flood risk listNN18 9AQ: not on the flood risk listNN18 9AS: not on the flood risk listNN18 9AT: not on the flood risk listNN18 9AU: not on the flood risk listNN18 9AW: not on the flood risk listNN18 9AX: not on the flood risk listNN18 9AY: not on the flood risk listNN18 9BA: not on the flood risk listNN18 9BB: not on the flood risk listNN18 9BD: not on the flood risk listNN18 9BE: not on the flood risk listNN18 9BF: not on the flood risk listNN18 9BG: not on the flood risk listNN18 9BH: not on the flood risk listNN18 9BJ: not on the flood risk listNN18 9BL: not on the flood risk listNN18 9BN: not on the flood risk listNN18 9BP: not on the flood risk listNN18 9BQ: not on the flood risk listNN18 9BS: not on the flood risk listNN18 9BT: not on the flood risk listNN18 9BU: not on the flood risk listNN18 9BW: not on the flood risk listNN18 9BX: not on the flood risk listNN18 9BY: not on the flood risk listNN18 9BZ: not on the flood risk listNN18 9DA: not on the flood risk listNN18 9DB: not on the flood risk listNN18 9DD: not on the flood risk listNN18 9DE: not on the flood risk listNN18 9DF: not on the flood risk listNN18 9DG: not on the flood risk listNN18 9DH: not on the flood risk listNN18 9DJ: not on the flood risk listNN18 9DL: not on the flood risk listNN18 9DN: not on the flood risk listNN18 9DP: not on the flood risk listNN18 9DQ: not on the flood risk listNN18 9DR: not on the flood risk listNN18 9DS: not on the flood risk listNN18 9DT: not on the flood risk listNN18 9DU: not on the flood risk listNN18 9DW: not on the flood risk listNN18 9DX: not on the flood risk listNN18 9DY: not on the flood risk listNN18 9DZ: not on the flood risk listNN18 9EA: not on the flood risk listNN18 9EB: not on the flood risk listNN18 9ED: not on the flood risk listNN18 9EE: not on the flood risk listNN18 9EF: not on the flood risk listNN18 9EG: not on the flood risk listNN18 9EH: not on the flood risk listNN18 9EJ: not on the flood risk listNN18 9EL: not on the flood risk listNN18 9EN: not on the flood risk listNN18 9EP: not on the flood risk listNN18 9EQ: not on the flood risk listNN18 9ER: not on the flood risk listNN18 9ET: not on the flood risk listNN18 9EU: not on the flood risk listNN18 9EW: not on the flood risk listNN18 9EY: not on the flood risk listNN18 9EZ: not on the flood risk listNN18 9FA: not on the flood risk listNN18 9FB: not on the flood risk listNN18 9FD: not on the flood risk listNN18 9FE: not on the flood risk listNN18 9FF: not on the flood risk listNN18 9FH: not on the flood risk listNN18 9FJ: not on the flood risk listNN18 9FL: not on the flood risk listNN18 9FN: not on the flood risk listNN18 9FP: not on the flood risk listNN18 9FQ: not on the flood risk listNN18 9FR: not on the flood risk listNN18 9FS: not on the flood risk listNN18 9HA: not on the flood risk listNN18 9HB: not on the flood risk listNN18 9HD: not on the flood risk listNN18 9HE: not on the flood risk listNN18 9HF: not on the flood risk listNN18 9HG: not on the flood risk listNN18 9HH: not on the flood risk listNN18 9HL: not on the flood risk listNN18 9HN: not on the flood risk listNN18 9HQ: not on the flood risk listNN18 9HR: not on the flood risk listNN18 9HS: not on the flood risk listNN18 9HT: not on the flood risk listNN18 9HU: not on the flood risk listNN18 9HW: not on the flood risk listNN18 9HX: not on the flood risk listNN18 9HY: not on the flood risk listNN18 9HZ: not on the flood risk listNN18 9JA: not on the flood risk listNN18 9JB: not on the flood risk listNN18 9JD: not on the flood risk listNN18 9JE: not on the flood risk listNN18 9JG: not on the flood risk listNN18 9JH: not on the flood risk listNN18 9JJ: not on the flood risk listNN18 9JL: not on the flood risk listNN18 9JN: not on the flood risk listNN18 9JP: not on the flood risk listNN18 9JQ: not on the flood risk listNN18 9JR: not on the flood risk listNN18 9JS: not on the flood risk listNN18 9JT: not on the flood risk listNN18 9JU: not on the flood risk listNN18 9JW: not on the flood risk listNN18 9JX: not on the flood risk listNN18 9JY: not on the flood risk listNN18 9JZ: not on the flood risk listNN18 9LE: not on the flood risk listNN18 9LF: not on the flood risk listNN18 9LG: not on the flood risk listNN18 9LH: not on the flood risk listNN18 9LJ: not on the flood risk listNN18 9LL: not on the flood risk listNN18 9LN: not on the flood risk listNN18 9LP: not on the flood risk listNN18 9LQ: not on the flood risk listNN18 9LR: not on the flood risk listNN18 9LS: not on the flood risk listNN18 9LT: not on the flood risk listNN18 9LU: not on the flood risk listNN18 9LW: not on the flood risk listNN18 9LX: not on the flood risk listNN18 9LZ: not on the flood risk listNN18 9NA: not on the flood risk listNN18 9NB: not on the flood risk listNN18 9ND: not on the flood risk listNN18 9NE: not on the flood risk listNN18 9NG: not on the flood risk listNN18 9NJ: not on the flood risk listNN18 9NS: not on the flood risk listNN18 9NT: not on the flood risk listNN18 9NX: not on the flood risk listNN18 9PA: not on the flood risk listNN18 9PB: not on the flood risk listNN18 9PD: not on the flood risk listNN18 9PE: not on the flood risk listNN18 9PF: not on the flood risk listNN18 9PG: not on the flood risk listNN18 9PH: not on the flood risk listNN18 9PJ: not on the flood risk listNN18 9PL: not on the flood risk listNN18 9QA: not on the flood risk listNN18 9QB: not on the flood risk listNN18 9QD: not on the flood risk listNN18 9NF: low flood risk at worstNN18 9NH: low flood risk at worstNN18 9NP: medium flood risk at worst Corby Map of every postcode in the NN18 9 sector, by flood risk Of the 166 postcodes in the NN18 9 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 163 are not on the Environment Agency's at-risk list. Places named: Corby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A43A427 Corby
  • A home or business at high risk: 0
  • At medium risk at worst: 1
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 163

Of the 166 postcodes in the NN18 9 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 163 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 medium risk at worst

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

NN18 9NP6 at medium risk

What do homes sell for in NN18 9?

Homes in NN18 9 sold for a typical £220,000 in the 12 months to August 2026, across 71 sales, up 10% on the 12 months before, HM Land Registry's figures show.

£220,000 typical price, the 12 months to August 2026
£200,000 12 months to August 2025
▲ up 10% on the 12 months before
  • Detached £290,000 15 sales
  • Semi-detached £225,000 27 sales
  • Terraced £180,000 27 sales
  • Flat or maisonette 2 sales, too few to price

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 NN18 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 NN18 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.

NN18 9AANN18 9ABNN18 9ADNN18 9AENN18 9AFNN18 9AGNN18 9AHNN18 9AJNN18 9ALNN18 9AQNN18 9ASNN18 9ATNN18 9AUNN18 9AWNN18 9AXNN18 9AYNN18 9AZNN18 9BANN18 9BBNN18 9BDNN18 9BENN18 9BFNN18 9BGNN18 9BHNN18 9BJNN18 9BLNN18 9BNNN18 9BPNN18 9BQNN18 9BSNN18 9BTNN18 9BUNN18 9BWNN18 9BXNN18 9BYNN18 9BZNN18 9DANN18 9DBNN18 9DDNN18 9DENN18 9DFNN18 9DGNN18 9DHNN18 9DJNN18 9DLNN18 9DNNN18 9DPNN18 9DQNN18 9DRNN18 9DSNN18 9DTNN18 9DUNN18 9DWNN18 9DXNN18 9DYNN18 9DZNN18 9EANN18 9EBNN18 9EDNN18 9EENN18 9EFNN18 9EGNN18 9EHNN18 9EJNN18 9ELNN18 9ENNN18 9EPNN18 9EQNN18 9ERNN18 9ETNN18 9EUNN18 9EWNN18 9EYNN18 9EZNN18 9FANN18 9FBNN18 9FDNN18 9FENN18 9FFNN18 9FGNN18 9FHNN18 9FJNN18 9FLNN18 9FNNN18 9FPNN18 9FQNN18 9FRNN18 9FSNN18 9HANN18 9HBNN18 9HDNN18 9HENN18 9HFNN18 9HGNN18 9HHNN18 9HLNN18 9HNNN18 9HQNN18 9HRNN18 9HSNN18 9HTNN18 9HUNN18 9HWNN18 9HXNN18 9HYNN18 9HZNN18 9JANN18 9JBNN18 9JDNN18 9JENN18 9JGNN18 9JHNN18 9JJNN18 9JLNN18 9JNNN18 9JPNN18 9JQNN18 9JRNN18 9JSNN18 9JTNN18 9JUNN18 9JWNN18 9JXNN18 9JYNN18 9JZNN18 9LENN18 9LFNN18 9LGNN18 9LHNN18 9LJNN18 9LLNN18 9LNNN18 9LPNN18 9LQNN18 9LRNN18 9LSNN18 9LTNN18 9LUNN18 9LWNN18 9LXNN18 9LZNN18 9NANN18 9NBNN18 9NDNN18 9NENN18 9NFNN18 9NGNN18 9NHNN18 9NJNN18 9NPNN18 9NSNN18 9NTNN18 9NXNN18 9PANN18 9PBNN18 9PDNN18 9PENN18 9PFNN18 9PGNN18 9PHNN18 9PJNN18 9PLNN18 9QANN18 9QBNN18 9QDNN18 9ZQ

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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