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 5GW | Harefield | 50.922148 | -1.344058 | 446202 | 113837 | SU462138 |
| SO18 5GX | Harefield | 50.915942 | -1.343804 | 446226 | 113147 | SU462131 |
| SO18 5GY | Harefield | 50.91716 | -1.342905 | 446288 | 113283 | SU462132 |
| SO18 5GZ | Harefield | 50.916897 | -1.342595 | 446310 | 113254 | SU463132 |
| SO18 5HA | Harefield | 50.91675 | -1.341915 | 446358 | 113238 | SU463132 |
| SO18 5HB | Harefield | 50.916356 | -1.342318 | 446330 | 113194 | SU463131 |
| SO18 5HD | Harefield | 50.915882 | -1.342709 | 446303 | 113141 | SU463131 |
| SO18 5HE | Harefield | 50.91609 | -1.341383 | 446396 | 113165 | SU463131 |
| SO18 5HF | Harefield | 50.916892 | -1.34012 | 446484 | 113255 | SU464132 |
| SO18 5HG | Harefield | 50.916528 | -1.339386 | 446536 | 113215 | SU465132 |
| SO18 5HH | Harefield | 50.917392 | -1.340967 | 446424 | 113310 | SU464133 |
| SO18 5HJ | Harefield | 50.917751 | -1.33924 | 446545 | 113351 | SU465133 |
| SO18 5HL | Harefield | 50.917418 | -1.337723 | 446652 | 113315 | SU466133 |
| SO18 5HN | Harefield | 50.918839 | -1.336138 | 446762 | 113474 | SU467134 |
| SO18 5HP | Harefield | 50.91835 | -1.335419 | 446813 | 113420 | SU468134 |
| SO18 5HQ | Harefield | 50.917992 | -1.335766 | 446789 | 113380 | SU467133 |
| SO18 5HR | Harefield | 50.917788 | -1.336309 | 446751 | 113357 | SU467133 |
| SO18 5HS | Harefield | 50.918122 | -1.335024 | 446841 | 113395 | SU468133 |
| SO18 5HT | Harefield | 50.917861 | -1.334928 | 446848 | 113366 | SU468133 |
| SO18 5HU | Harefield | 50.917978 | -1.333333 | 446960 | 113380 | SU469133 |
| SO18 5HW | Harefield | 50.918336 | -1.333015 | 446982 | 113420 | SU469134 |
| SO18 5HX | Harefield | 50.91874 | -1.334546 | 446874 | 113464 | SU468134 |
| SO18 5HY | Harefield | 50.918991 | -1.334428 | 446882 | 113492 | SU468134 |
| SO18 5HZ | Harefield | 50.919376 | -1.33401 | 446911 | 113535 | SU469135 |
| SO18 5JA | Harefield | 50.919327 | -1.333285 | 446962 | 113530 | SU469135 |
| SO18 5JB | Harefield | 50.919951 | -1.333988 | 446912 | 113599 | SU469135 |
| SO18 5JD | Harefield | 50.919389 | -1.334721 | 446861 | 113536 | SU468135 |
| SO18 5JE | Harefield | 50.920126 | -1.334626 | 446867 | 113618 | SU468136 |
| SO18 5JF | Harefield | 50.920126 | -1.336276 | 446751 | 113617 | SU467136 |
| SO18 5JG | Harefield | 50.920787 | -1.335441 | 446809 | 113691 | SU468136 |
| SO18 5JH | Harefield | 50.919585 | -1.336113 | 446763 | 113557 | SU467135 |
| SO18 5JL | Harefield | 50.919032 | -1.344827 | 446151 | 113490 | SU461134 |
| SO18 5LA | Harefield | 50.919479 | -1.342801 | 446293 | 113541 | SU462135 |
| SO18 5LB | Harefield | 50.918942 | -1.343278 | 446260 | 113481 | SU462134 |
| SO18 5LZ | Harefield | 50.915648 | -1.352343 | 445626 | 113109 | SU456131 |
| SO18 5NA | Harefield | 50.91519 | -1.350799 | 445735 | 113059 | SU457130 |
| SO18 5NB | Harefield | 50.915467 | -1.350568 | 445751 | 113090 | SU457130 |
| SO18 5ND | Harefield | 50.915568 | -1.349357 | 445836 | 113102 | SU458131 |
| SO18 5NE | Harefield | 50.916397 | -1.349573 | 445820 | 113194 | SU458131 |
| SO18 5NF | Harefield | 50.916223 | -1.350742 | 445738 | 113174 | SU457131 |
| SO18 5NG | Harefield | 50.915863 | -1.350662 | 445744 | 113134 | SU457131 |
| SO18 5NH | Harefield | 50.915797 | -1.351644 | 445675 | 113126 | SU456131 |
| SO18 5NP | Harefield | 50.917672 | -1.350864 | 445728 | 113335 | SU457133 |
| SO18 5NZ | Harefield | 50.920727 | -1.347194 | 445983 | 113677 | SU459136 |
| SO18 5PA | Harefield | 50.919499 | -1.347965 | 445930 | 113540 | SU459135 |
| SO18 5PB | Harefield | 50.9218 | -1.3558 | 445377 | 113791 | SU453137 |
| SO18 5PD | Harefield | 50.922031 | -1.355413 | 445404 | 113817 | SU454138 |
| SO18 5PE | Harefield | 50.923181 | -1.355155 | 445421 | 113945 | SU454139 |
| SO18 5PF | Harefield | 50.923245 | -1.353646 | 445527 | 113953 | SU455139 |
| SO18 5PG | Harefield | 50.92423 | -1.354543 | 445463 | 114062 | SU454140 |
| SO18 5PQ | Harefield | 50.922945 | -1.348258 | 445906 | 113923 | SU459139 |
| SO18 5PR | Harefield | 50.923058 | -1.347502 | 445959 | 113936 | SU459139 |
| SO18 5PS | Harefield | 50.924062 | -1.346976 | 445995 | 114048 | SU459140 |
| SO18 5PT | Harefield | 50.924334 | -1.347314 | 445971 | 114078 | SU459140 |
| SO18 5PU | Harefield | 50.92457 | -1.34778 | 445938 | 114104 | SU459141 |
| SO18 5PW | Harefield | 50.924839 | -1.349171 | 445840 | 114133 | SU458141 |
| SO18 5PX | Harefield | 50.924979 | -1.348585 | 445881 | 114149 | SU458141 |
| SO18 5PY | Harefield | 50.924589 | -1.351195 | 445698 | 114104 | SU456141 |
| SO18 5PZ | Harefield | 50.924314 | -1.351896 | 445649 | 114073 | SU456140 |
| SO18 5QA | Harefield | 50.925072 | -1.350661 | 445735 | 114158 | SU457141 |
| SO18 5QB | Harefield | 50.923936 | -1.351901 | 445649 | 114031 | SU456140 |
| SO18 5QD | Harefield | 50.924114 | -1.351443 | 445681 | 114051 | SU456140 |
| SO18 5QE | Harefield | 50.924364 | -1.34959 | 445811 | 114080 | SU458140 |
| SO18 5QF | Harefield | 50.924057 | -1.349395 | 445825 | 114046 | SU458140 |
| SO18 5QG | Harefield | 50.923747 | -1.350097 | 445776 | 114011 | SU457140 |
| SO18 5QH | Harefield | 50.923613 | -1.348775 | 445869 | 113997 | SU458139 |
| SO18 5QJ | Harefield | 50.923359 | -1.349917 | 445789 | 113968 | SU457139 |
| SO18 5QL | Harefield | 50.923054 | -1.350064 | 445779 | 113934 | SU457139 |
| SO18 5QP | Harefield | 50.922229 | -1.352195 | 445630 | 113841 | SU456138 |
| SO18 5QQ | Harefield | 50.922981 | -1.351445 | 445682 | 113925 | SU456139 |
| SO18 5QR | Harefield | 50.922314 | -1.352806 | 445587 | 113850 | SU455138 |
| SO18 5QS | Harefield | 50.922463 | -1.353728 | 445522 | 113866 | SU455138 |
| SO18 5QT | Harefield | 50.914773 | -1.345527 | 446106 | 113016 | SU461130 |
| SO18 5QU | Harefield | 50.915421 | -1.343896 | 446220 | 113089 | SU462130 |
| SO18 5QW | Harefield | 50.915087 | -1.343773 | 446229 | 113052 | SU462130 |
| SO18 5QX | Harefield | 50.914763 | -1.343735 | 446232 | 113016 | SU462130 |
| SO18 5QY | Thornhill | 50.914249 | -1.341879 | 446363 | 112960 | SU463129 |
| SO18 5QZ | Thornhill | 50.913905 | -1.343079 | 446279 | 112921 | SU462129 |
| SO18 5RB | Harefield | 50.915502 | -1.337551 | 446666 | 113102 | SU466131 |
| SO18 5RD | Harefield | 50.915577 | -1.333296 | 446965 | 113113 | SU469131 |
| SO18 5RE | Harefield | 50.916433 | -1.332061 | 447051 | 113209 | SU470132 |
| SO18 5RF | Harefield | 50.916113 | -1.331212 | 447111 | 113174 | SU471131 |
| SO18 5RG | Harefield | 50.917297 | -1.332176 | 447042 | 113305 | SU470133 |
| SO18 5RJ | Harefield | 50.923962 | -1.353209 | 445557 | 114033 | SU455140 |
| SO18 5RN | Harefield | 50.916665 | -1.333267 | 446966 | 113234 | SU469132 |
| SO18 5RP | Harefield | 50.91637 | -1.335163 | 446833 | 113200 | SU468132 |
| SO18 5RQ | Harefield | 50.915794 | -1.335171 | 446833 | 113136 | SU468131 |
| SO18 5RR | Peartree | 50.914677 | -1.360621 | 445045 | 112996 | SU450129 |
| SO18 5RS | Peartree | 50.914332 | -1.361608 | 444976 | 112957 | SU449129 |
| SO18 5RT | Peartree | 50.914367 | -1.359843 | 445100 | 112962 | SU450129 |
| SO18 5RY | Harefield | 50.924659 | -1.352446 | 445610 | 114111 | SU456141 |
| SO18 5RZ | Harefield | 50.920616 | -1.34176 | 446365 | 113668 | SU463136 |
| SO18 5SA | Harefield | 50.915588 | -1.353013 | 445579 | 113102 | SU455131 |
| SO18 5SB | Harefield | 50.914668 | -1.354135 | 445501 | 112999 | SU455129 |
| SO18 5SE | Harefield | 50.924945 | -1.3521 | 445634 | 114143 | SU456141 |
| SO18 5SF | Harefield | 50.925409 | -1.349817 | 445794 | 114196 | SU457141 |
| SO18 5SH | Harefield | 50.915091 | -1.341141 | 446414 | 113054 | SU464130 |
| SO18 5SJ | Harefield | 50.915449 | -1.339287 | 446544 | 113095 | SU465130 |
| SO18 5SR | Harefield | 50.922659 | -1.346925 | 446000 | 113892 | SU459138 |
| SO18 5SS | Harefield | 50.919778 | -1.333649 | 446936 | 113580 | SU469135 |