This is a list of postcodes in the SO1 area covering the areas of Southampton city centre (no longer in use).
 Active postcode
Active postcode 
   Postcode no longer in use
Postcode no longer in use| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? | 
|---|---|---|---|---|---|---|
| SO1 1PB | 50.906814 | -1.397097 | 442488 | 112100 | SU424120 | No | 
| SO1 1PD | 50.901409 | -1.396982 | 442501 | 111499 | SU425114 | No | 
| SO1 1PE | 50.906866 | -1.396684 | 442517 | 112106 | SU425121 | No | 
| SO1 1PF | 50.906271 | -1.396407 | 442537 | 112040 | SU425120 | No | 
| SO1 1PG | 50.905516 | -1.396474 | 442533 | 111956 | SU425119 | No | 
| SO1 1PH | 50.905026 | -1.39557 | 442597 | 111902 | SU425119 | No | 
| SO1 1PJ | 50.904449 | -1.395407 | 442609 | 111838 | SU426118 | No | 
| SO1 1PL | 50.905024 | -1.395214 | 442622 | 111902 | SU426119 | No | 
| SO1 1PN | 50.90496 | -1.394973 | 442639 | 111895 | SU426118 | No | 
| SO1 1PP | 50.904957 | -1.39439 | 442680 | 111895 | SU426118 | No | 
| SO1 1PQ | 50.904302 | -1.394783 | 442653 | 111822 | SU426118 | No | 
| SO1 1PR | 50.90431 | -1.394441 | 442677 | 111823 | SU426118 | No | 
| SO1 1PS | 50.904398 | -1.394127 | 442699 | 111833 | SU426118 | No | 
| SO1 1PT | 50.904008 | -1.393549 | 442740 | 111790 | SU427117 | No | 
| SO1 1PU | 50.904484 | -1.393344 | 442754 | 111843 | SU427118 | No | 
| SO1 1PW | 50.904933 | -1.393381 | 442751 | 111893 | SU427118 | No | 
| SO1 1PX | 50.906537 | -1.397399 | 442467 | 112069 | SU424120 | No | 
| SO1 1PZ | 50.906228 | -1.394971 | 442638 | 112036 | SU426120 | No | 
| SO1 1QA | 50.910526 | -1.382953 | 443479 | 112521 | SU434125 | No | 
| SO1 1QD | 50.910326 | -1.382643 | 443501 | 112499 | SU435124 | No | 
| SO1 1QE | 50.911126 | -1.38084 | 443627 | 112589 | SU436125 | No | 
| SO1 1QF | 50.911195 | -1.381877 | 443554 | 112596 | SU435125 | No | 
| SO1 1QG | 50.906043 | -1.39567 | 442589 | 112015 | SU425120 | No | 
| SO1 1QH | 50.910255 | -1.382829 | 443488 | 112491 | SU434124 | No | 
| SO1 1QJ | 50.906366 | -1.395652 | 442590 | 112051 | SU425120 | No | 
| SO1 1QL | 50.91016 | -1.380127 | 443678 | 112482 | SU436124 | No | 
| SO1 1QN | 50.910471 | -1.384561 | 443366 | 112514 | SU433125 | No | 
| SO1 1QP | 50.90945 | -1.386921 | 443201 | 112399 | SU432123 | No | 
| SO1 1QQ | 50.909467 | -1.3851 | 443329 | 112402 | SU433124 | No | 
| SO1 1QR | 50.908707 | -1.387528 | 443159 | 112316 | SU431123 | No | 
| SO1 1QS | 50.909281 | -1.388943 | 443059 | 112379 | SU430123 | No | 
| SO1 1QT | 50.909145 | -1.388774 | 443071 | 112364 | SU430123 | No | 
| SO1 1QU | 50.909223 | -1.388176 | 443113 | 112373 | SU431123 | No | 
| SO1 1QW | 50.907867 | -1.388677 | 443079 | 112222 | SU430122 | No | 
| SO1 1QX | 50.906063 | -1.394418 | 442677 | 112018 | SU426120 | No | 
| SO1 1QY | 50.90714 | -1.388957 | 443060 | 112141 | SU430121 | No | 
| SO1 1QZ | 50.907207 | -1.389582 | 443016 | 112148 | SU430121 | No | 
| SO1 1RA | 50.906414 | -1.394499 | 442671 | 112057 | SU426120 | No | 
| SO1 1RB | 50.908179 | -1.388161 | 443115 | 112257 | SU431122 | No | 
| SO1 1RE | 50.907372 | -1.388542 | 443089 | 112167 | SU430121 | No | 
| SO1 1RF | 50.906886 | -1.388377 | 443101 | 112113 | SU431121 | No | 
| SO1 1RG | 50.906522 | -1.389392 | 443030 | 112072 | SU430120 | No | 
| SO1 1RH | 50.908342 | -1.38998 | 442987 | 112274 | SU429122 | No | 
| SO1 1RJ | 50.909465 | -1.389766 | 443001 | 112399 | SU430123 | No | 
| SO1 1RL | 50.908918 | -1.390114 | 442977 | 112338 | SU429123 | No | 
| SO1 1RP | 50.912092 | -1.386602 | 443221 | 112693 | SU432126 | No | 
| SO1 1RS | 50.911495 | -1.384348 | 443380 | 112628 | SU433126 | No | 
| SO1 1RT | 50.911526 | -1.384988 | 443335 | 112631 | SU433126 | No | 
| SO1 1RU | 50.911547 | -1.385628 | 443290 | 112633 | SU432126 | No | 
| SO1 1RW | 50.911568 | -1.386253 | 443246 | 112635 | SU432126 | No | 
| SO1 1RX | 50.911662 | -1.386935 | 443198 | 112645 | SU431126 | No | 
| SO1 1RY | 50.911393 | -1.38701 | 443193 | 112615 | SU431126 | No | 
| SO1 1RZ | 50.910961 | -1.386987 | 443195 | 112567 | SU431125 | No | 
| SO1 1SA | 50.910876 | -1.386234 | 443248 | 112558 | SU432125 | No | 
| SO1 1SB | 50.910587 | -1.385925 | 443270 | 112526 | SU432125 | No | 
| SO1 1SD | 50.910916 | -1.385394 | 443307 | 112563 | SU433125 | No | 
| SO1 1SE | 50.911056 | -1.384624 | 443361 | 112579 | SU433125 | No | 
| SO1 1SF | 50.910387 | -1.385529 | 443298 | 112504 | SU432125 | No | 
| SO1 1SG | 50.910218 | -1.385873 | 443274 | 112485 | SU432124 | No | 
| SO1 1SH | 50.909967 | -1.386118 | 443257 | 112457 | SU432124 | No | 
| SO1 1SJ | 50.909771 | -1.386519 | 443229 | 112435 | SU432124 | No | 
| SO1 1SL | 50.910429 | -1.386752 | 443212 | 112508 | SU432125 | No | 
| SO1 1SN | 50.909954 | -1.386986 | 443196 | 112455 | SU431124 | No | 
| SO1 1SP | 50.909826 | -1.388381 | 443098 | 112440 | SU430124 | No | 
| SO1 1SQ | 50.910235 | -1.387537 | 443157 | 112486 | SU431124 | No | 
| SO1 1SR | 50.910892 | -1.387486 | 443160 | 112559 | SU431125 | No | 
| SO1 1SS | 50.910921 | -1.387969 | 443126 | 112562 | SU431125 | No | 
| SO1 1ST | 50.910641 | -1.387773 | 443140 | 112531 | SU431125 | No | 
| SO1 1SU | 50.910607 | -1.388172 | 443112 | 112527 | SU431125 | No | 
| SO1 1SW | 50.910318 | -1.387934 | 443129 | 112495 | SU431124 | No | 
| SO1 1SX | 50.910394 | -1.388573 | 443084 | 112503 | SU430125 | No | 
| SO1 1SY | 50.910041 | -1.388194 | 443111 | 112464 | SU431124 | No | 
| SO1 1TA | 50.90681 | -1.394622 | 442662 | 112101 | SU426121 | No | 
| SO1 1TB | 50.906885 | -1.395034 | 442633 | 112109 | SU426121 | No | 
| SO1 1TD | 50.906887 | -1.395574 | 442595 | 112109 | SU425121 | No | 
| SO1 1TE | 50.899067 | -1.394467 | 442680 | 111240 | SU426112 | No | 
| SO1 1TF | 50.898416 | -1.395527 | 442606 | 111167 | SU426111 | No | 
| SO1 1TG | 50.896673 | -1.389037 | 443064 | 110977 | SU430109 | No | 
| SO1 1TH | 50.901554 | -1.395515 | 442604 | 111516 | SU426115 | No | 
| SO1 1TJ | 50.89558 | -1.394924 | 442651 | 110852 | SU426108 | No | 
| SO1 1TL | 50.894681 | -1.393244 | 442770 | 110753 | SU427107 | No | 
| SO1 1TN | 50.897283 | -1.392115 | 442847 | 111043 | SU428110 | No | 
| SO1 1TP | 50.893811 | -1.391918 | 442864 | 110657 | SU428106 | No | 
| SO1 1TQ | 50.899046 | -1.395533 | 442605 | 111237 | SU426112 | No | 
| SO1 1TW | 50.90044 | -1.397378 | 442474 | 111391 | SU424113 | No | 
| SO1 1WA | 50.897849 | -1.404138 | 442001 | 111099 | SU420110 | No | 
| SO1 1WL | 50.898441 | -1.396878 | 442511 | 111169 | SU425111 | No | 
| SO1 1WX | 50.927144 | -1.389648 | 442993 | 114365 | SU429143 | No | 
| SO1 1XB | 50.896033 | -1.393781 | 442731 | 110903 | SU427109 | No | 
| SO1 1XD | 50.896033 | -1.393781 | 442731 | 110903 | SU427109 | No | 
| SO1 1XE | 50.896673 | -1.389037 | 443064 | 110977 | SU430109 | No | 
| SO1 1XF | 50.895599 | -1.393417 | 442757 | 110855 | SU427108 | No | 
| SO1 1XG | 50.900889 | -1.397273 | 442481 | 111441 | SU424114 | No | 
| SO1 1XJ | 50.898441 | -1.396878 | 442511 | 111169 | SU425111 | No | 
| SO1 1XL | 50.897945 | -1.400084 | 442286 | 111112 | SU422111 | No | 
| SO1 1XN | 50.902093 | -1.398722 | 442378 | 111574 | SU423115 | No | 
| SO1 1XP | 50.911995 | -1.383531 | 443437 | 112684 | SU434126 | No | 
| SO1 1XQ | 50.895017 | -1.399055 | 442361 | 110787 | SU423107 | No | 
| SO1 1XR | 50.896741 | -1.391667 | 442879 | 110983 | SU428109 | No | 
| SO1 1ZB | 50.910013 | -1.436171 | 439738 | 112434 | SU397124 | No | 
| SO1 1ZZ | 50.908203 | -1.419111 | 440939 | 112242 | SU409122 | No | 
| SO1 2AA | 50.912844 | -1.403278 | 442048 | 112767 | SU420127 | No | 
| SO1 2AB | 50.912281 | -1.403911 | 442004 | 112704 | SU420127 | No | 
| SO1 2AD | 50.911735 | -1.404416 | 441969 | 112643 | SU419126 | No | 
| SO1 2AE | 50.911063 | -1.404965 | 441931 | 112568 | SU419125 | No | 
| SO1 2AF | 50.91081 | -1.404584 | 441958 | 112540 | SU419125 | No | 
| SO1 2AG | 50.911517 | -1.403921 | 442004 | 112619 | SU420126 | No | 
| SO1 2AH | 50.91209 | -1.40343 | 442038 | 112683 | SU420126 | No | 
| SO1 2AJ | 50.912815 | -1.402738 | 442086 | 112764 | SU420127 | No | 
| SO1 2AL | 50.911243 | -1.404948 | 441932 | 112588 | SU419125 | No | 
| SO1 2AN | 50.910861 | -1.404071 | 441994 | 112546 | SU419125 | No | 
| SO1 2AP | 50.911064 | -1.403357 | 442044 | 112569 | SU420125 | No | 
| SO1 2AQ | 50.911097 | -1.402646 | 442094 | 112573 | SU420125 | No | 
| SO1 2AS | 50.911806 | -1.402509 | 442103 | 112652 | SU421126 | No | 
| SO1 2AT | 50.911785 | -1.401897 | 442146 | 112650 | SU421126 | No | 
| SO1 2AU | 50.911337 | -1.403966 | 442001 | 112599 | SU420125 | No | 
| SO1 2AW | 50.912194 | -1.402646 | 442093 | 112695 | SU420126 | No | 
| SO1 2AX | 50.912089 | -1.401495 | 442174 | 112684 | SU421126 | No | 
| SO1 2AY | 50.912403 | -1.401477 | 442175 | 112719 | SU421127 | No | 
| SO1 2AZ | 50.912746 | -1.401586 | 442167 | 112757 | SU421127 | No | 
| SO1 2BA | 50.913024 | -1.401497 | 442173 | 112788 | SU421127 | No | 
| SO1 2BB | 50.910421 | -1.406011 | 441858 | 112496 | SU418124 | No | 
| SO1 2BD | 50.913301 | -1.40818 | 441703 | 112815 | SU417128 | No | 
| SO1 2BE | 50.911482 | -1.407605 | 441745 | 112613 | SU417126 | No | 
| SO1 2BG | 50.91022 | -1.407152 | 441778 | 112473 | SU417124 | No | 
| SO1 2BH | 50.909991 | -1.408065 | 441714 | 112447 | SU417124 | No | 
| SO1 2BJ | 50.909212 | -1.412271 | 441419 | 112358 | SU414123 | No | 
| SO1 2BN | 50.909363 | -1.410192 | 441565 | 112376 | SU415123 | No | 
| SO1 2BP | 50.909737 | -1.411183 | 441495 | 112417 | SU414124 | No | 
| SO1 2BQ | 50.910529 | -1.41133 | 441484 | 112505 | SU414125 | No | 
| SO1 2BR | 50.910258 | -1.410963 | 441510 | 112475 | SU415124 | No | 
| SO1 2BS | 50.911278 | -1.410026 | 441575 | 112589 | SU415125 | No | 
| SO1 2BT | 50.9109 | -1.409903 | 441584 | 112547 | SU415125 | No | 
| SO1 2BW | 50.910584 | -1.409807 | 441591 | 112512 | SU415125 | No | 
| SO1 2BX | 50.911997 | -1.406333 | 441834 | 112671 | SU418126 | No | 
| SO1 2BY | 50.911021 | -1.405463 | 441896 | 112563 | SU418125 | No | 
| SO1 2DA | 50.911482 | -1.407605 | 441745 | 112613 | SU417126 | No | 
| SO1 2DB | 50.911922 | -1.405893 | 441865 | 112663 | SU418126 | No | 
| SO1 2DD | 50.912019 | -1.407257 | 441769 | 112673 | SU417126 | No | 
| SO1 2DE | 50.912333 | -1.406997 | 441787 | 112708 | SU417127 | No | 
| SO1 2DF | 50.91261 | -1.406695 | 441808 | 112739 | SU418127 | No | 
| SO1 2DG | 50.913165 | -1.406247 | 441839 | 112801 | SU418128 | No | 
| SO1 2DH | 50.912804 | -1.407773 | 441732 | 112760 | SU417127 | No | 
| SO1 2DJ | 50.913036 | -1.407429 | 441756 | 112786 | SU417127 | No | 
| SO1 2DL | 50.912996 | -1.40834 | 441692 | 112781 | SU416127 | No | 
| SO1 2DN | 50.91312 | -1.407869 | 441725 | 112795 | SU417127 | No | 
| SO1 2DR | 50.913305 | -1.407283 | 441766 | 112816 | SU417128 | No | 
| SO1 2DS | 50.91323 | -1.406673 | 441809 | 112808 | SU418128 | No | 
| SO1 2DT | 50.913929 | -1.406123 | 441847 | 112886 | SU418128 | No | 
| SO1 2DX | 50.912964 | -1.405652 | 441881 | 112779 | SU418127 | No | 
| SO1 2DY | 50.912701 | -1.405228 | 441911 | 112750 | SU419127 | No | 
| SO1 2DZ | 50.913166 | -1.404682 | 441949 | 112802 | SU419128 | No | 
| SO1 2EA | 50.912814 | -1.404459 | 441965 | 112763 | SU419127 | No | 
| SO1 2EB | 50.915022 | -1.412326 | 441410 | 113004 | SU414130 | No | 
| SO1 2ED | 50.913535 | -1.404791 | 441941 | 112843 | SU419128 | No | 
| SO1 2EE | 50.913629 | -1.405402 | 441898 | 112853 | SU418128 | No | 
| SO1 2EF | 50.913448 | -1.405262 | 441908 | 112833 | SU419128 | No | 
| SO1 2EG | 50.913143 | -1.405365 | 441901 | 112799 | SU419127 | No | 
| SO1 2EH | 50.912414 | -1.405289 | 441907 | 112718 | SU419127 | No | 
| SO1 2EJ | 50.912358 | -1.404891 | 441935 | 112712 | SU419127 | No | 
| SO1 2EL | 50.912509 | -1.404548 | 441959 | 112729 | SU419127 | No | 
| SO1 2EP | 50.914702 | -1.404349 | 441971 | 112973 | SU419129 | No | 
| SO1 2EQ | 50.914763 | -1.403993 | 441996 | 112980 | SU419129 | No | 
| SO1 2ES | 50.914136 | -1.406092 | 441849 | 112909 | SU418129 | No | 
| SO1 2ET | 50.913997 | -1.405283 | 441906 | 112894 | SU419128 | No | 
| SO1 2EU | 50.913588 | -1.404477 | 441963 | 112849 | SU419128 | No | 
| SO1 2EW | 50.913281 | -1.404168 | 441985 | 112815 | SU419128 | No | 
| SO1 2EY | 50.913431 | -1.403669 | 442020 | 112832 | SU420128 | No | 
| SO1 2EZ | 50.91382 | -1.404147 | 441986 | 112875 | SU419128 | No | 
| SO1 2FB | 50.913172 | -1.402349 | 442113 | 112804 | SU421128 | No | 
| SO1 2FD | 50.913547 | -1.401818 | 442150 | 112846 | SU421128 | No | 
| SO1 2FE | 50.913807 | -1.40153 | 442170 | 112875 | SU421128 | No | 
| SO1 2FG | 50.910801 | -1.411668 | 441460 | 112535 | SU414125 | No | 
| SO1 2FH | 50.911216 | -1.411975 | 441438 | 112581 | SU414125 | No | 
| SO1 2FJ | 50.911337 | -1.411106 | 441499 | 112595 | SU414125 | No | 
| SO1 2FL | 50.911429 | -1.411518 | 441470 | 112605 | SU414126 | No | 
| SO1 2FN | 50.911469 | -1.412257 | 441418 | 112609 | SU414126 | No | 
| SO1 2FP | 50.911759 | -1.412651 | 441390 | 112641 | SU413126 | No | 
| SO1 2FQ | 50.912648 | -1.412512 | 441399 | 112740 | SU413127 | No | 
| SO1 2FR | 50.912655 | -1.412099 | 441428 | 112741 | SU414127 | No | 
| SO1 2FS | 50.912689 | -1.411687 | 441457 | 112745 | SU414127 | No | 
| SO1 2FT | 50.912624 | -1.411218 | 441490 | 112738 | SU414127 | No | 
| SO1 2FU | 50.911803 | -1.410787 | 441521 | 112647 | SU415126 | No | 
| SO1 2FW | 50.911596 | -1.41069 | 441528 | 112624 | SU415126 | No | 
| SO1 2FX | 50.911828 | -1.410346 | 441552 | 112650 | SU415126 | No | 
| SO1 2FY | 50.912514 | -1.410835 | 441517 | 112726 | SU415127 | No | 
| SO1 2FZ | 50.912998 | -1.410502 | 441540 | 112780 | SU415127 | No | 
| SO1 2GA | 50.912421 | -1.410125 | 441567 | 112716 | SU415127 | No | 
| SO1 2GB | 50.912078 | -1.410002 | 441576 | 112678 | SU415126 | No | 
| SO1 2GD | 50.912444 | -1.409385 | 441619 | 112719 | SU416127 | No | 
| SO1 2GE | 50.913023 | -1.410075 | 441570 | 112783 | SU415127 | No | 
| SO1 2GF | 50.913048 | -1.409662 | 441599 | 112786 | SU415127 | No | 
| SO1 2GG | 50.913001 | -1.409307 | 441624 | 112781 | SU416127 | No | 
| SO1 2GH | 50.913124 | -1.408822 | 441658 | 112795 | SU416127 | No | 
| SO1 2GJ | 50.911919 | -1.408766 | 441663 | 112661 | SU416126 | No | 
| SO1 2GL | 50.91128 | -1.408746 | 441665 | 112590 | SU416125 | No | 
| SO1 2GN | 50.910905 | -1.40912 | 441639 | 112548 | SU416125 | No | 
| SO1 2GP | 50.910749 | -1.408568 | 441678 | 112531 | SU416125 | No | 
| SO1 2GQ | 50.911045 | -1.408407 | 441689 | 112564 | SU416125 | No | 
| SO1 2GR | 50.910541 | -1.408399 | 441690 | 112508 | SU416125 | No |