This page provides postcode data for the Dyfed Welsh preserved county. Dyfed contains approximately 163,512 households with a population of about 382,131 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| SY23 4PP | 52.396514 | -4.07126 | 259167 | 279630 | SN591796 | Yes |
| SY23 4PQ | 52.33254 | -4.045843 | 260695 | 272466 | SN606724 | Yes |
| SY23 4PR | 52.38944 | -4.069577 | 259259 | 278840 | SN592788 | Yes |
| SY23 4PS | 52.356211 | -4.024658 | 262212 | 275058 | SN622750 | Yes |
| SY23 4PT | 52.395091 | -4.069841 | 259259 | 279469 | SN592794 | Yes |
| SY23 4PU | 52.39264 | -4.069638 | 259265 | 279196 | SN592791 | Yes |
| SY23 4PW | 52.357852 | -4.020239 | 262518 | 275232 | SN625752 | Yes |
| SY23 4PX | 52.393402 | -4.068219 | 259364 | 279278 | SN593792 | Yes |
| SY23 4PY | 52.389279 | -4.077726 | 258704 | 278838 | SN587788 | Yes |
| SY23 4PZ | 52.39363 | -4.087014 | 258086 | 279340 | SN580793 | Yes |
| SY23 4QA | 52.385537 | -4.075757 | 258826 | 278418 | SN588784 | Yes |
| SY23 4QB | 52.390471 | -4.069258 | 259284 | 278954 | SN592789 | Yes |
| SY23 4QD | 52.389218 | -4.067391 | 259407 | 278811 | SN594788 | Yes |
| SY23 4QE | 52.371214 | -4.047336 | 260715 | 276770 | SN607767 | Yes |
| SY23 4QF | 52.388865 | -4.083394 | 258317 | 278803 | SN583788 | Yes |
| SY23 4QG | 52.375253 | -4.094463 | 257520 | 277311 | SN575773 | Yes |
| SY23 4QH | 52.36051 | -4.101873 | 256968 | 275686 | SN569756 | Yes |
| SY23 4QJ | 52.356368 | -4.107756 | 256554 | 275237 | SN565752 | Yes |
| SY23 4QL | 52.343911 | -4.086683 | 257949 | 273810 | SN579738 | Yes |
| SY23 4QN | 52.353188 | -4.07919 | 258489 | 274827 | SN584748 | Yes |
| SY23 4QP | 52.391127 | -4.068774 | 259319 | 279026 | SN593790 | Yes |
| SY23 4QQ | 52.373437 | -4.108598 | 256552 | 277137 | SN565771 | Yes |
| SY23 4QR | 52.355497 | -4.024875 | 262195 | 274979 | SN621749 | Yes |
| SY23 4QS | 52.390212 | -4.067585 | 259397 | 278922 | SN593789 | Yes |
| SY23 4QT | 52.342422 | -4.032264 | 261651 | 273539 | SN616735 | Yes |
| SY23 4QU | 52.37914 | -3.879366 | 272172 | 277341 | SN721773 | Yes |
| SY23 4QW | 52.360925 | -4.079436 | 258497 | 275688 | SN584756 | Yes |
| SY23 4QX | 52.373817 | -3.868592 | 272890 | 276730 | SN728767 | Yes |
| SY23 4QY | 52.375719 | -3.858051 | 273613 | 276923 | SN736769 | Yes |
| SY23 4QZ | 52.371268 | -3.856924 | 273677 | 276426 | SN736764 | Yes |
| SY23 4RA | 52.373344 | -3.858113 | 273602 | 276659 | SN736766 | Yes |
| SY23 4RB | 52.356931 | -3.854869 | 273776 | 274828 | SN737748 | Yes |
| SY23 4RD | 52.371574 | -3.86318 | 273252 | 276471 | SN732764 | Yes |
| SY23 4RE | 52.366666 | -3.862533 | 273282 | 275924 | SN732759 | Yes |
| SY23 4RF | 52.364398 | -3.867211 | 272957 | 275680 | SN729756 | Yes |
| SY23 4RG | 52.371781 | -3.880773 | 272055 | 276525 | SN720765 | Yes |
| SY23 4RH | 52.366773 | -3.888051 | 271545 | 275981 | SN715759 | Yes |
| SY23 4RJ | 52.366602 | -3.881316 | 272003 | 275950 | SN720759 | Yes |
| SY23 4RL | 52.361368 | -3.881329 | 271987 | 275368 | SN719753 | Yes |
| SY23 4RN | 52.395502 | -4.070537 | 259213 | 279516 | SN592795 | Yes |
| SY23 4RP | 52.351202 | -3.909706 | 270025 | 274288 | SN700742 | Yes |
| SY23 4RQ | 52.370674 | -3.897648 | 270903 | 276432 | SN709764 | Yes |
| SY23 4RR | 52.356463 | -3.917437 | 269514 | 274887 | SN695748 | Yes |
| SY23 4RS | 52.356687 | -3.936229 | 268235 | 274946 | SN682749 | Yes |
| SY23 4RT | 52.373756 | -3.85932 | 273521 | 276707 | SN735767 | Yes |
| SY23 4RW | 52.347474 | -3.890532 | 271320 | 273839 | SN713738 | Yes |
| SY23 4SA | 52.355963 | -4.022385 | 262366 | 275026 | SN623750 | Yes |
| SY23 4SB | 52.351503 | -4.017116 | 262711 | 274520 | SN627745 | Yes |
| SY23 4SD | 52.342636 | -4.003998 | 263577 | 273509 | SN635735 | Yes |
| SY23 4SE | 52.334147 | -4.002984 | 263620 | 272563 | SN636725 | Yes |
| SY23 4SF | 52.33395 | -4.0098 | 263155 | 272554 | SN631725 | Yes |
| SY23 4SG | 52.336972 | -4.000205 | 263818 | 272872 | SN638728 | Yes |
| SY23 4SH | 52.315217 | -3.967283 | 265995 | 270391 | SN659703 | Yes |
| SY23 4SJ | 52.321655 | -3.964575 | 266199 | 271102 | SN661711 | No |
| SY23 4SL | 52.329638 | -4.016943 | 262655 | 272088 | SN626720 | Yes |
| SY23 4SN | 52.322804 | -4.007974 | 263245 | 271310 | SN632713 | Yes |
| SY23 4SP | 52.311179 | -4.046721 | 260568 | 270092 | SN605700 | Yes |
| SY23 4SQ | 52.326148 | -3.992115 | 264336 | 271653 | SN643716 | Yes |
| SY23 4SR | 52.314383 | -4.02985 | 261728 | 270416 | SN617704 | Yes |
| SY23 4SS | 52.306812 | -4.05582 | 259934 | 269624 | SN599696 | Yes |
| SY23 4ST | 52.321919 | -3.963824 | 266251 | 271129 | SN662711 | Yes |
| SY23 4SW | 52.318287 | -4.041737 | 260930 | 270873 | SN609708 | Yes |
| SY23 4TA | 52.316371 | -3.989123 | 264510 | 270560 | SN645705 | Yes |
| SY23 4TB | 52.314933 | -3.990158 | 264435 | 270402 | SN644704 | Yes |
| SY23 4TD | 52.31826 | -3.999698 | 263795 | 270790 | SN637707 | Yes |
| SY23 4TE | 52.304715 | -3.995157 | 264063 | 269275 | SN640692 | Yes |
| SY23 4TF | 52.292073 | -3.99299 | 264172 | 267865 | SN641678 | Yes |
| SY23 4TG | 52.287981 | -3.994654 | 264046 | 267413 | SN640674 | Yes |
| SY23 4TH | 52.284081 | -3.993452 | 264116 | 266977 | SN641669 | Yes |
| SY23 4TJ | 52.277795 | -3.991323 | 264242 | 266273 | SN642662 | Yes |
| SY23 4TL | 52.257595 | -3.988924 | 264344 | 264022 | SN643640 | Yes |
| SY23 4TN | 52.251824 | -4.004782 | 263244 | 263410 | SN632634 | Yes |
| SY23 4TP | 52.268058 | -4.013003 | 262733 | 265231 | SN627652 | Yes |
| SY23 4TQ | 52.283694 | -3.993464 | 264114 | 266934 | SN641669 | Yes |
| SY23 4TR | 52.262902 | -4.015862 | 262522 | 264663 | SN625646 | Yes |
| SY23 4TS | 52.258212 | -4.014594 | 262594 | 264139 | SN625641 | Yes |
| SY23 4TT | 52.261909 | -4.0339 | 261288 | 264587 | SN612645 | Yes |
| SY23 4TW | 52.258214 | -4.003927 | 263322 | 264120 | SN633641 | Yes |
| SY23 4UA | 52.380796 | -4.072332 | 259044 | 277884 | SN590778 | Yes |
| SY23 4UB | 52.380034 | -4.073222 | 258981 | 277801 | SN589778 | Yes |
| SY23 4UD | 52.379275 | -4.073451 | 258963 | 277717 | SN589777 | Yes |
| SY23 4UE | 52.379623 | -4.073555 | 258957 | 277756 | SN589777 | Yes |
| SY23 4UF | 52.379538 | -4.073316 | 258973 | 277746 | SN589777 | Yes |
| SY23 4UG | 52.380289 | -4.071471 | 259101 | 277826 | SN591778 | Yes |
| SY23 4UH | 52.381222 | -4.070574 | 259165 | 277928 | SN591779 | Yes |
| SY23 4UJ | 52.373132 | -4.059119 | 259919 | 277006 | SN599770 | Yes |
| SY23 4UL | 52.380493 | -4.070628 | 259159 | 277847 | SN591778 | Yes |
| SY23 4UN | 52.379874 | -4.070041 | 259197 | 277777 | SN591777 | Yes |
| SY23 4UQ | 52.380073 | -4.07149 | 259099 | 277802 | SN590778 | No |
| SY23 4WA | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WB | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | No |
| SY23 4WD | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WE | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WF | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WG | 52.350975 | -3.999486 | 263910 | 274428 | SN639744 | No |
| SY23 4WH | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WJ | 52.350975 | -3.999486 | 263910 | 274428 | SN639744 | No |
| SY23 4WL | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WN | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WP | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WQ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WR | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WS | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WT | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4WY | 52.403488 | -4.043596 | 261071 | 280352 | SN610803 | No |
| SY23 4WZ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 4YE | 52.403488 | -4.043596 | 261071 | 280352 | SN610803 | No |
| SY23 4ZZ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 5AA | 52.306221 | -4.141694 | 254078 | 269728 | SN540697 | Yes |
| SY23 5AB | 52.306192 | -4.143791 | 253935 | 269729 | SN539697 | Yes |
| SY23 5AD | 52.306238 | -4.093625 | 257355 | 269634 | SN573696 | Yes |
| SY23 5AE | 52.310907 | -4.07467 | 258662 | 270116 | SN586701 | Yes |
| SY23 5AF | 52.313056 | -4.073641 | 258739 | 270353 | SN587703 | Yes |
| SY23 5AG | 52.317825 | -4.072925 | 258803 | 270882 | SN588708 | Yes |
| SY23 5AH | 52.30727 | -4.141364 | 254104 | 269844 | SN541698 | Yes |
| SY23 5AJ | 52.248308 | -4.176847 | 251488 | 263359 | SN514633 | Yes |
| SY23 5AL | 52.310238 | -4.134406 | 254588 | 270160 | SN545701 | Yes |
| SY23 5AN | 52.327518 | -4.111492 | 256206 | 272036 | SN562720 | Yes |
| SY23 5AP | 52.331507 | -4.078261 | 258483 | 272414 | SN584724 | Yes |
| SY23 5AQ | 52.277998 | -4.182334 | 251213 | 266672 | SN512666 | Yes |
| SY23 5AR | 52.324587 | -4.085686 | 257955 | 271659 | SN579716 | Yes |
| SY23 5AS | 52.314554 | -4.095748 | 257237 | 270563 | SN572705 | Yes |
| SY23 5AT | 52.307273 | -4.139735 | 254215 | 269841 | SN542698 | Yes |
| SY23 5AU | 52.282937 | -4.1768 | 251607 | 267210 | SN516672 | Yes |
| SY23 5AW | 52.329669 | -4.099809 | 257009 | 272252 | SN570722 | Yes |
| SY23 5AX | 52.308152 | -4.136859 | 254414 | 269933 | SN544699 | Yes |
| SY23 5AY | 52.305262 | -4.134064 | 254595 | 269606 | SN545696 | Yes |
| SY23 5AZ | 52.304748 | -4.132177 | 254722 | 269545 | SN547695 | No |
| SY23 5BA | 52.30159 | -4.130279 | 254841 | 269190 | SN548691 | Yes |
| SY23 5BB | 52.301097 | -4.128701 | 254947 | 269132 | SN549691 | Yes |
| SY23 5BD | 52.294387 | -4.097142 | 257077 | 268323 | SN570683 | Yes |
| SY23 5BE | 52.305217 | -4.087826 | 257747 | 269509 | SN577695 | Yes |
| SY23 5BF | 52.306125 | -4.142027 | 254055 | 269718 | SN540697 | Yes |
| SY23 5BG | 52.301791 | -4.12011 | 255535 | 269192 | SN555691 | No |
| SY23 5BH | 52.278992 | -4.181547 | 251270 | 266781 | SN512667 | Yes |
| SY23 5BJ | 52.303499 | -4.144071 | 253907 | 269430 | SN539694 | Yes |
| SY23 5BL | 52.28194 | -4.176751 | 251607 | 267099 | SN516670 | Yes |
| SY23 5BN | 52.304582 | -4.144842 | 253858 | 269552 | SN538695 | Yes |
| SY23 5BP | 52.303724 | -4.14552 | 253809 | 269458 | SN538694 | Yes |
| SY23 5BQ | 52.284995 | -4.184701 | 251075 | 267455 | SN510674 | Yes |
| SY23 5BS | 52.303276 | -4.144941 | 253847 | 269407 | SN538694 | Yes |
| SY23 5BT | 52.303754 | -4.147355 | 253684 | 269465 | SN536694 | Yes |
| SY23 5BU | 52.30324 | -4.151833 | 253377 | 269417 | SN533694 | Yes |
| SY23 5BW | 52.305025 | -4.14372 | 253936 | 269599 | SN539695 | Yes |
| SY23 5BX | 52.272938 | -4.129521 | 254799 | 266002 | SN547660 | No |
| SY23 5BY | 52.292962 | -4.161233 | 252702 | 268293 | SN527682 | Yes |
| SY23 5BZ | 52.288716 | -4.146525 | 253691 | 267791 | SN536677 | Yes |
| SY23 5DA | 52.285544 | -4.127032 | 255010 | 267399 | SN550673 | Yes |
| SY23 5DB | 52.302703 | -4.145324 | 253819 | 269344 | SN538693 | Yes |
| SY23 5DG | 52.306172 | -4.144905 | 253859 | 269729 | SN538697 | Yes |
| SY23 5DH | 52.304957 | -4.147442 | 253682 | 269599 | SN536695 | Yes |
| SY23 5DJ | 52.306609 | -4.157439 | 253006 | 269803 | SN530698 | Yes |
| SY23 5DL | 52.306492 | -4.144113 | 253914 | 269763 | SN539697 | Yes |
| SY23 5DN | 52.307249 | -4.14701 | 253719 | 269853 | SN537698 | Yes |
| SY23 5DP | 52.330896 | -4.120738 | 255587 | 272430 | SN555724 | Yes |
| SY23 5DQ | 52.305827 | -4.145592 | 253811 | 269692 | SN538696 | Yes |
| SY23 5DR | 52.337674 | -4.118802 | 255741 | 273180 | SN557731 | No |
| SY23 5DS | 52.332036 | -4.108273 | 256440 | 272532 | SN564725 | Yes |
| SY23 5DT | 52.327834 | -4.114457 | 256005 | 272077 | SN560720 | Yes |
| SY23 5DU | 52.327302 | -4.11452 | 255999 | 272018 | SN559720 | Yes |
| SY23 5DW | 52.31112 | -4.142811 | 254018 | 270275 | SN540702 | Yes |
| SY23 5DY | 52.305603 | -4.140095 | 254185 | 269656 | SN541696 | Yes |
| SY23 5EA | 52.301804 | -4.133898 | 254595 | 269221 | SN545692 | Yes |
| SY23 5EB | 52.300863 | -4.132181 | 254709 | 269113 | SN547691 | Yes |
| SY23 5ED | 52.294903 | -4.131601 | 254729 | 268449 | SN547684 | Yes |
| SY23 5EE | 52.292097 | -4.119148 | 255569 | 268112 | SN555681 | Yes |
| SY23 5EF | 52.289009 | -4.108341 | 256296 | 267747 | SN562677 | Yes |
| SY23 5EG | 52.286046 | -4.102042 | 256716 | 267405 | SN567674 | Yes |
| SY23 5EH | 52.283405 | -4.109453 | 256202 | 267126 | SN562671 | Yes |
| SY23 5EJ | 52.275754 | -4.093727 | 257250 | 266244 | SN572662 | Yes |
| SY23 5EL | 52.284066 | -4.094529 | 257222 | 267170 | SN572671 | Yes |
| SY23 5EQ | 52.282598 | -4.117331 | 255662 | 267052 | SN556670 | Yes |
| SY23 5HA | 52.279808 | -4.179241 | 251430 | 266867 | SN514668 | Yes |
| SY23 5HB | 52.279238 | -4.18043 | 251347 | 266806 | SN513668 | Yes |
| SY23 5HD | 52.279359 | -4.178721 | 251464 | 266816 | SN514668 | Yes |
| SY23 5HE | 52.280512 | -4.178118 | 251509 | 266943 | SN515669 | Yes |
| SY23 5HF | 52.280505 | -4.177531 | 251549 | 266941 | SN515669 | Yes |
| SY23 5HG | 52.281376 | -4.177618 | 251546 | 267038 | SN515670 | Yes |
| SY23 5HH | 52.282066 | -4.176786 | 251605 | 267113 | SN516671 | Yes |
| SY23 5HJ | 52.283645 | -4.17597 | 251666 | 267287 | SN516672 | Yes |
| SY23 5HL | 52.281495 | -4.177022 | 251587 | 267050 | SN515670 | Yes |
| SY23 5HN | 52.284401 | -4.17303 | 251869 | 267365 | SN518673 | Yes |
| SY23 5HP | 52.283951 | -4.182318 | 251234 | 267334 | SN512673 | Yes |
| SY23 5HQ | 52.281717 | -4.178118 | 251513 | 267077 | SN515670 | Yes |
| SY23 5HR | 52.284386 | -4.183557 | 251151 | 267385 | SN511673 | Yes |
| SY23 5HS | 52.283991 | -4.184051 | 251116 | 267342 | SN511673 | Yes |
| SY23 5HT | 52.281556 | -4.179063 | 251448 | 267061 | SN514670 | Yes |
| SY23 5HU | 52.279411 | -4.177389 | 251555 | 266819 | SN515668 | Yes |
| SY23 5HW | 52.283473 | -4.17992 | 251396 | 267276 | SN513672 | Yes |
| SY23 5HX | 52.280251 | -4.176199 | 251639 | 266910 | SN516669 | Yes |
| SY23 5HY | 52.281946 | -4.175461 | 251695 | 267097 | SN516670 | Yes |
| SY23 5HZ | 52.282275 | -4.173733 | 251814 | 267130 | SN518671 | Yes |
| SY23 5JA | 52.282916 | -4.173075 | 251861 | 267200 | SN518671 | Yes |
| SY23 5JB | 52.2856 | -4.172854 | 251885 | 267498 | SN518674 | Yes |
| SY23 5JD | 52.285104 | -4.173402 | 251846 | 267444 | SN518674 | Yes |
| SY23 5JE | 52.285033 | -4.171874 | 251950 | 267433 | SN519674 | Yes |
| SY23 5JG | 52.256909 | -4.168769 | 252068 | 264298 | SN520642 | Yes |
| SY23 5JH | 52.247246 | -4.181747 | 251150 | 263250 | SN511632 | Yes |
| SY23 5JJ | 52.24822 | -4.180168 | 251261 | 263356 | SN512633 | Yes |
| SY23 5JL | 52.24234 | -4.213923 | 248937 | 262772 | SN489627 | Yes |