This page provides postcode data for the Southampton UK Unitary Authority.
In 2021, Southampton contained approximately 102,300 households with a population of about 249,000
In 2011, Southampton contained approximately 98,244 households with a population of about 236,855
| Postcode | Ward | Latitude | Longitude | Easting | Northing | Grid ref |
|---|---|---|---|---|---|---|
| SO18 5HA | Harefield | 50.916759 | -1.341925 | 446357 | 113239 | SU463132 |
| SO18 5HB | Harefield | 50.916365 | -1.342328 | 446329 | 113195 | SU463131 |
| SO18 5HD | Harefield | 50.915891 | -1.342719 | 446302 | 113142 | SU463131 |
| SO18 5HE | Harefield | 50.916099 | -1.341393 | 446395 | 113166 | SU463131 |
| SO18 5HF | Harefield | 50.916902 | -1.34013 | 446483 | 113256 | SU464132 |
| SO18 5HG | Harefield | 50.916538 | -1.339396 | 446535 | 113216 | SU465132 |
| SO18 5HH | Harefield | 50.917401 | -1.340977 | 446423 | 113311 | SU464133 |
| SO18 5HJ | Harefield | 50.91776 | -1.33925 | 446544 | 113352 | SU465133 |
| SO18 5HL | Harefield | 50.917428 | -1.337733 | 446651 | 113316 | SU466133 |
| SO18 5HN | Harefield | 50.918848 | -1.336148 | 446761 | 113475 | SU467134 |
| SO18 5HP | Harefield | 50.918359 | -1.335429 | 446812 | 113421 | SU468134 |
| SO18 5HQ | Harefield | 50.918001 | -1.335776 | 446788 | 113381 | SU467133 |
| SO18 5HR | Harefield | 50.917797 | -1.336319 | 446750 | 113358 | SU467133 |
| SO18 5HS | Harefield | 50.918132 | -1.335034 | 446840 | 113396 | SU468133 |
| SO18 5HT | Harefield | 50.91787 | -1.334938 | 446847 | 113367 | SU468133 |
| SO18 5HU | Harefield | 50.917987 | -1.333343 | 446959 | 113381 | SU469133 |
| SO18 5HW | Harefield | 50.918345 | -1.333025 | 446981 | 113421 | SU469134 |
| SO18 5HX | Harefield | 50.918749 | -1.334556 | 446873 | 113465 | SU468134 |
| SO18 5HY | Harefield | 50.919001 | -1.334438 | 446881 | 113493 | SU468134 |
| SO18 5HZ | Harefield | 50.919385 | -1.33402 | 446910 | 113536 | SU469135 |
| SO18 5JA | Harefield | 50.919336 | -1.333296 | 446961 | 113531 | SU469135 |
| SO18 5JB | Harefield | 50.91996 | -1.333998 | 446911 | 113600 | SU469135 |
| SO18 5JD | Harefield | 50.919398 | -1.334732 | 446860 | 113537 | SU468135 |
| SO18 5JE | Harefield | 50.920135 | -1.334636 | 446866 | 113619 | SU468136 |
| SO18 5JF | Harefield | 50.920135 | -1.336286 | 446750 | 113618 | SU467136 |
| SO18 5JG | Harefield | 50.920787 | -1.335441 | 446809 | 113691 | SU468136 |
| SO18 5JH | Harefield | 50.919595 | -1.336123 | 446762 | 113558 | SU467135 |
| SO18 5JL | Harefield | 50.919041 | -1.344837 | 446150 | 113491 | SU461134 |
| SO18 5LA | Harefield | 50.919489 | -1.342811 | 446292 | 113542 | SU462135 |
| SO18 5LB | Harefield | 50.918952 | -1.343288 | 446259 | 113482 | SU462134 |
| SO18 5LZ | Harefield | 50.915657 | -1.352353 | 445625 | 113110 | SU456131 |
| SO18 5NA | Harefield | 50.91519 | -1.350799 | 445735 | 113059 | SU457130 |
| SO18 5NB | Harefield | 50.915476 | -1.350577 | 445750 | 113091 | SU457130 |
| SO18 5ND | Harefield | 50.915578 | -1.349367 | 445835 | 113103 | SU458131 |
| SO18 5NE | Harefield | 50.916406 | -1.349583 | 445819 | 113195 | SU458131 |
| SO18 5NF | Harefield | 50.916233 | -1.350752 | 445737 | 113175 | SU457131 |
| SO18 5NG | Harefield | 50.915873 | -1.350671 | 445743 | 113135 | SU457131 |
| SO18 5NH | Harefield | 50.915806 | -1.351654 | 445674 | 113127 | SU456131 |
| SO18 5NP | Harefield | 50.917681 | -1.350874 | 445727 | 113336 | SU457133 |
| SO18 5NZ | Harefield | 50.920736 | -1.347204 | 445982 | 113678 | SU459136 |
| SO18 5PA | Harefield | 50.919508 | -1.347975 | 445929 | 113541 | SU459135 |
| SO18 5PB | Harefield | 50.921809 | -1.35581 | 445376 | 113792 | SU453137 |
| SO18 5PD | Harefield | 50.922041 | -1.355423 | 445403 | 113818 | SU454138 |
| SO18 5PE | Harefield | 50.92319 | -1.355165 | 445420 | 113946 | SU454139 |
| SO18 5PF | Harefield | 50.923254 | -1.353656 | 445526 | 113954 | SU455139 |
| SO18 5PG | Harefield | 50.924239 | -1.354553 | 445462 | 114063 | SU454140 |
| SO18 5PQ | Harefield | 50.922954 | -1.348268 | 445905 | 113924 | SU459139 |
| SO18 5PR | Harefield | 50.923067 | -1.347512 | 445958 | 113937 | SU459139 |
| SO18 5PS | Harefield | 50.924071 | -1.346986 | 445994 | 114049 | SU459140 |
| SO18 5PT | Harefield | 50.924343 | -1.347324 | 445970 | 114079 | SU459140 |
| SO18 5PU | Harefield | 50.924579 | -1.34779 | 445937 | 114105 | SU459141 |
| SO18 5PW | Harefield | 50.924848 | -1.349181 | 445839 | 114134 | SU458141 |
| SO18 5PX | Harefield | 50.924988 | -1.348595 | 445880 | 114150 | SU458141 |
| SO18 5PY | Harefield | 50.924598 | -1.351204 | 445697 | 114105 | SU456141 |
| SO18 5PZ | Harefield | 50.924296 | -1.351952 | 445645 | 114071 | SU456140 |
| SO18 5QA | Harefield | 50.925081 | -1.350671 | 445734 | 114159 | SU457141 |
| SO18 5QB | Harefield | 50.923946 | -1.351911 | 445648 | 114032 | SU456140 |
| SO18 5QD | Harefield | 50.924123 | -1.351453 | 445680 | 114052 | SU456140 |
| SO18 5QE | Harefield | 50.924373 | -1.3496 | 445810 | 114081 | SU458140 |
| SO18 5QF | Harefield | 50.924067 | -1.349405 | 445824 | 114047 | SU458140 |
| SO18 5QG | Harefield | 50.923756 | -1.350106 | 445775 | 114012 | SU457140 |
| SO18 5QH | Harefield | 50.923623 | -1.348785 | 445868 | 113998 | SU458139 |
| SO18 5QJ | Harefield | 50.923368 | -1.349927 | 445788 | 113969 | SU457139 |
| SO18 5QL | Harefield | 50.923063 | -1.350073 | 445778 | 113935 | SU457139 |
| SO18 5QP | Harefield | 50.922239 | -1.352205 | 445629 | 113842 | SU456138 |
| SO18 5QQ | Harefield | 50.92299 | -1.351454 | 445681 | 113926 | SU456139 |
| SO18 5QR | Harefield | 50.922323 | -1.352815 | 445586 | 113851 | SU455138 |
| SO18 5QS | Harefield | 50.922472 | -1.353738 | 445521 | 113867 | SU455138 |
| SO18 5QT | Harefield | 50.914773 | -1.345527 | 446106 | 113016 | SU461130 |
| SO18 5QU | Harefield | 50.91543 | -1.343906 | 446219 | 113090 | SU462130 |
| SO18 5QW | Harefield | 50.915097 | -1.343783 | 446228 | 113053 | SU462130 |
| SO18 5QX | Harefield | 50.914773 | -1.343745 | 446231 | 113017 | SU462130 |
| SO18 5QY | Thornhill | 50.914249 | -1.341879 | 446363 | 112960 | SU463129 |
| SO18 5QZ | Thornhill | 50.913915 | -1.343088 | 446278 | 112922 | SU462129 |
| SO18 5RB | Harefield | 50.915511 | -1.337561 | 446665 | 113103 | SU466131 |
| SO18 5RD | Harefield | 50.915586 | -1.333306 | 446964 | 113114 | SU469131 |
| SO18 5RE | Harefield | 50.916442 | -1.332071 | 447050 | 113210 | SU470132 |
| SO18 5RF | Harefield | 50.916123 | -1.331222 | 447110 | 113175 | SU471131 |
| SO18 5RG | Harefield | 50.917306 | -1.332187 | 447041 | 113306 | SU470133 |
| SO18 5RJ | Harefield | 50.923971 | -1.353219 | 445556 | 114034 | SU455140 |
| SO18 5RN | Harefield | 50.916674 | -1.333277 | 446965 | 113235 | SU469132 |
| SO18 5RP | Harefield | 50.916379 | -1.335173 | 446832 | 113201 | SU468132 |
| SO18 5RQ | Harefield | 50.915803 | -1.335181 | 446832 | 113137 | SU468131 |
| SO18 5RR | Peartree | 50.914687 | -1.360631 | 445044 | 112997 | SU450129 |
| SO18 5RS | Peartree | 50.914332 | -1.361608 | 444976 | 112957 | SU449129 |
| SO18 5RT | Peartree | 50.914367 | -1.359843 | 445100 | 112962 | SU450129 |
| SO18 5RY | Harefield | 50.924668 | -1.352456 | 445609 | 114112 | SU456141 |
| SO18 5RZ | Harefield | 50.920625 | -1.341771 | 446364 | 113669 | SU463136 |
| SO18 5SA | Harefield | 50.915598 | -1.353022 | 445578 | 113103 | SU455131 |
| SO18 5SB | Harefield | 50.914678 | -1.354145 | 445500 | 113000 | SU454130 |
| SO18 5SE | Harefield | 50.924954 | -1.35211 | 445633 | 114144 | SU456141 |
| SO18 5SF | Harefield | 50.925418 | -1.349827 | 445793 | 114197 | SU457141 |
| SO18 5SH | Harefield | 50.9151 | -1.341151 | 446413 | 113055 | SU464130 |
| SO18 5SJ | Harefield | 50.915458 | -1.339297 | 446543 | 113096 | SU465130 |
| SO18 5SR | Harefield | 50.922668 | -1.346935 | 445999 | 113893 | SU459138 |
| SO18 5SS | Harefield | 50.919787 | -1.333659 | 446935 | 113581 | SU469135 |
| SO18 5SU | Harefield | 50.916947 | -1.349817 | 445802 | 113255 | SU458132 |
| SO18 5SW | Harefield | 50.91754 | -1.349756 | 445806 | 113321 | SU458133 |
| SO18 5SZ | Harefield | 50.921261 | -1.355818 | 445376 | 113731 | SU453137 |
| SO18 5TB | Harefield | 50.923276 | -1.346357 | 446039 | 113961 | SU460139 |