This page provides postcode data for the Dyfed Welsh preserved county. Dyfed contains approximately 163,514 households with a population of about 382,136 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| SY23 2EY | 52.416201 | -4.075638 | 258932 | 281828 | SN589818 | Yes |
| SY23 2EZ | 52.417184 | -4.074964 | 258981 | 281936 | SN589819 | Yes |
| SY23 2FA | 52.417441 | -4.080329 | 258617 | 281975 | SN586819 | Yes |
| SY23 2HA | 52.41784 | -4.07498 | 258982 | 282009 | SN589820 | Yes |
| SY23 2HB | 52.417025 | -4.072765 | 259130 | 281914 | SN591819 | Yes |
| SY23 2HD | 52.417968 | -4.07178 | 259200 | 282017 | SN592820 | Yes |
| SY23 2HE | 52.419534 | -4.082457 | 258479 | 282212 | SN584822 | Yes |
| SY23 2HF | 52.417886 | -4.083644 | 258393 | 282031 | SN583820 | Yes |
| SY23 2HG | 52.419006 | -4.083829 | 258384 | 282156 | SN583821 | Yes |
| SY23 2HH | 52.416714 | -4.080765 | 258585 | 281895 | SN585818 | Yes |
| SY23 2HJ | 52.416976 | -4.081189 | 258557 | 281925 | SN585819 | Yes |
| SY23 2HL | 52.416893 | -4.081788 | 258516 | 281917 | SN585819 | Yes |
| SY23 2HN | 52.417764 | -4.082388 | 258478 | 282015 | SN584820 | Yes |
| SY23 2HP | 52.418292 | -4.08306 | 258434 | 282075 | SN584820 | Yes |
| SY23 2HQ | 52.420799 | -4.083649 | 258402 | 282355 | SN584823 | Yes |
| SY23 2HR | 52.418566 | -4.083294 | 258419 | 282106 | SN584821 | Yes |
| SY23 2HS | 52.418972 | -4.083254 | 258423 | 282151 | SN584821 | Yes |
| SY23 2HT | 52.420337 | -4.083848 | 258387 | 282304 | SN583823 | Yes |
| SY23 2HU | 52.422073 | -4.083797 | 258396 | 282497 | SN583824 | Yes |
| SY23 2HW | 52.417697 | -4.083135 | 258427 | 282009 | SN584820 | Yes |
| SY23 2HX | 52.42221 | -4.081142 | 258577 | 282507 | SN585825 | Yes |
| SY23 2HY | 52.421888 | -4.075905 | 258932 | 282461 | SN589824 | Yes |
| SY23 2HZ | 52.419519 | -4.080236 | 258630 | 282206 | SN586822 | Yes |
| SY23 2JA | 52.420415 | -4.079395 | 258690 | 282304 | SN586823 | Yes |
| SY23 2JB | 52.420016 | -4.081112 | 258572 | 282263 | SN585822 | Yes |
| SY23 2JD | 52.420545 | -4.080681 | 258603 | 282321 | SN586823 | Yes |
| SY23 2JH | 52.415064 | -4.083026 | 258426 | 281716 | SN584817 | Yes |
| SY23 2JJ | 52.415175 | -4.082369 | 258471 | 281727 | SN584817 | No |
| SY23 2JL | 52.415175 | -4.082369 | 258471 | 281727 | SN584817 | No |
| SY23 2JN | 52.415679 | -4.081305 | 258545 | 281781 | SN585817 | Yes |
| SY23 2JP | 52.41566 | -4.079848 | 258644 | 281776 | SN586817 | Yes |
| SY23 2JR | 52.416843 | -4.08008 | 258632 | 281908 | SN586819 | Yes |
| SY23 2JS | 52.41599 | -4.078981 | 258704 | 281811 | SN587818 | Yes |
| SY23 2JT | 52.415971 | -4.07798 | 258772 | 281807 | SN587818 | Yes |
| SY23 2JU | 52.41573 | -4.078925 | 258707 | 281782 | SN587817 | Yes |
| SY23 2JW | 52.415866 | -4.079872 | 258643 | 281799 | SN586817 | Yes |
| SY23 2JX | 52.415647 | -4.078524 | 258734 | 281772 | SN587817 | Yes |
| SY23 2JY | 52.415647 | -4.074936 | 258978 | 281765 | SN589817 | Yes |
| SY23 2JZ | 52.41494 | -4.074756 | 258988 | 281686 | SN589816 | Yes |
| SY23 2LA | 52.415633 | -4.072685 | 259131 | 281759 | SN591817 | Yes |
| SY23 2LB | 52.41562 | -4.073405 | 259082 | 281759 | SN590817 | Yes |
| SY23 2LE | 52.414931 | -4.083417 | 258399 | 281702 | SN583817 | No |
| SY23 2LJ | 52.414484 | -4.086336 | 258199 | 281658 | SN581816 | Yes |
| SY23 2LL | 52.413955 | -4.087782 | 258099 | 281602 | SN580816 | No |
| SY23 2LN | 52.415023 | -4.086862 | 258165 | 281719 | SN581817 | Yes |
| SY23 2LP | 52.418152 | -4.082833 | 258449 | 282059 | SN584820 | No |
| SY23 2LR | 52.415157 | -4.086456 | 258193 | 281733 | SN581817 | No |
| SY23 2LS | 52.415217 | -4.086606 | 258183 | 281740 | SN581817 | No |
| SY23 2LT | 52.41521 | -4.087488 | 258123 | 281741 | SN581817 | No |
| SY23 2LU | 52.41546 | -4.086588 | 258185 | 281767 | SN581817 | Yes |
| SY23 2NB | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | Yes |
| SY23 2ND | 52.415311 | -4.083331 | 258406 | 281744 | SN584817 | Yes |
| SY23 2NE | 52.414931 | -4.083417 | 258399 | 281702 | SN583817 | No |
| SY23 2NF | 52.415952 | -4.081626 | 258524 | 281812 | SN585818 | Yes |
| SY23 2NG | 52.417678 | -4.080605 | 258599 | 282002 | SN585820 | No |
| SY23 2NH | 52.414957 | -4.081947 | 258499 | 281702 | SN584817 | No |
| SY23 2NJ | 52.415856 | -4.08199 | 258499 | 281802 | SN584818 | No |
| SY23 2NL | 52.416296 | -4.08254 | 258463 | 281852 | SN584818 | Yes |
| SY23 2NN | 52.41695 | -4.083159 | 258423 | 281926 | SN584819 | Yes |
| SY23 2NP | 52.415379 | -4.079438 | 258671 | 281744 | SN586817 | Yes |
| SY23 2NQ | 52.416238 | -4.083272 | 258413 | 281847 | SN584818 | No |
| SY23 2NR | 52.416337 | -4.081203 | 258554 | 281854 | SN585818 | Yes |
| SY23 2UZ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WA | 52.403488 | -4.043596 | 261071 | 280352 | SN610803 | No |
| SY23 2WB | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | Yes |
| SY23 2WD | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WE | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WF | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WG | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WH | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WJ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WL | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WN | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WP | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WQ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WR | 52.403488 | -4.043596 | 261071 | 280352 | SN610803 | No |
| SY23 2WS | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | No |
| SY23 2WT | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2WU | 52.417323 | -4.080897 | 258578 | 281963 | SN585819 | No |
| SY23 2WW | 52.416871 | -4.080993 | 258570 | 281913 | SN585819 | No |
| SY23 2WX | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | No |
| SY23 2WY | 52.403488 | -4.043596 | 261071 | 280352 | SN610803 | No |
| SY23 2WZ | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | No |
| SY23 2XA | 52.417323 | -4.080897 | 258578 | 281963 | SN585819 | No |
| SY23 2XB | 52.417323 | -4.080897 | 258578 | 281963 | SN585819 | No |
| SY23 2XD | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | Yes |
| SY23 2XE | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2XF | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2XT | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2XY | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 2XZ | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | No |
| SY23 2YA | 52.403479 | -4.043595 | 261071 | 280351 | SN610803 | Yes |
| SY23 2ZZ | 52.414778 | -4.083968 | 258361 | 281686 | SN583816 | No |
| SY23 3AA | 52.405474 | -4.049892 | 260649 | 280585 | SN606805 | Yes |
| SY23 3AB | 52.410955 | -3.870073 | 272896 | 280863 | SN728808 | Yes |
| SY23 3AD | 52.407548 | -3.847744 | 274405 | 280445 | SN744804 | Yes |
| SY23 3AE | 52.393388 | -3.855647 | 273827 | 278884 | SN738788 | Yes |
| SY23 3AF | 52.398583 | -3.864964 | 273208 | 279478 | SN732794 | Yes |
| SY23 3AG | 52.430146 | -3.83773 | 275150 | 282941 | SN751829 | Yes |
| SY23 3AH | 52.412134 | -4.061934 | 259851 | 281349 | SN598813 | Yes |
| SY23 3AJ | 52.416994 | -4.062734 | 259812 | 281891 | SN598818 | Yes |
| SY23 3AL | 52.409661 | -4.052129 | 260510 | 281055 | SN605810 | Yes |
| SY23 3AN | 52.417744 | -4.060946 | 259936 | 281971 | SN599819 | Yes |
| SY23 3AP | 52.412546 | -4.060468 | 259952 | 281392 | SN599813 | Yes |
| SY23 3AQ | 52.401801 | -4.041842 | 261185 | 280161 | SN611801 | Yes |
| SY23 3AR | 52.414503 | -4.066324 | 259560 | 281621 | SN595816 | Yes |
| SY23 3AS | 52.410378 | -4.054339 | 260362 | 281139 | SN603811 | Yes |
| SY23 3AT | 52.41185 | -4.053951 | 260393 | 281302 | SN603813 | Yes |
| SY23 3AU | 52.410615 | -4.048424 | 260765 | 281154 | SN607811 | Yes |
| SY23 3AW | 52.415784 | -4.059413 | 260034 | 281750 | SN600817 | Yes |
| SY23 3AX | 52.413925 | -4.046828 | 260884 | 281519 | SN608815 | Yes |
| SY23 3AY | 52.414687 | -4.051142 | 260593 | 281612 | SN605816 | Yes |
| SY23 3AZ | 52.414902 | -4.05324 | 260451 | 281640 | SN604816 | Yes |
| SY23 3BA | 52.416151 | -4.054328 | 260381 | 281781 | SN603817 | Yes |
| SY23 3BB | 52.417182 | -4.055023 | 260337 | 281897 | SN603818 | Yes |
| SY23 3BD | 52.414652 | -4.045376 | 260985 | 281597 | SN609815 | Yes |
| SY23 3BE | 52.41759 | -4.036116 | 261624 | 281906 | SN616819 | Yes |
| SY23 3BF | 52.417484 | -4.067581 | 259484 | 281955 | SN594819 | Yes |
| SY23 3BG | 52.419305 | -4.040401 | 261338 | 282105 | SN613821 | Yes |
| SY23 3BH | 52.423292 | -4.04232 | 261220 | 282552 | SN612825 | Yes |
| SY23 3BJ | 52.434506 | -4.033306 | 261868 | 283782 | SN618837 | Yes |
| SY23 3BL | 52.42166 | -4.040965 | 261307 | 282368 | SN613823 | Yes |
| SY23 3BN | 52.419417 | -4.046421 | 260929 | 282129 | SN609821 | Yes |
| SY23 3BP | 52.410433 | -4.053224 | 260438 | 281143 | SN604811 | Yes |
| SY23 3BQ | 52.422021 | -4.039379 | 261416 | 282405 | SN614824 | Yes |
| SY23 3BS | 52.414696 | -4.061451 | 259892 | 281633 | SN598816 | No |
| SY23 3BT | 52.432073 | -4.020013 | 262764 | 283486 | SN627834 | Yes |
| SY23 3BU | 52.414492 | -4.0685 | 259412 | 281624 | SN594816 | Yes |
| SY23 3BW | 52.419822 | -4.050042 | 260684 | 282181 | SN606821 | Yes |
| SY23 3BX | 52.416481 | -4.069416 | 259356 | 281847 | SN593818 | Yes |
| SY23 3BY | 52.417971 | -4.064927 | 259666 | 282004 | SN596820 | Yes |
| SY23 3BZ | 52.415849 | -4.065446 | 259624 | 281769 | SN596817 | Yes |
| SY23 3DA | 52.415651 | -4.06648 | 259553 | 281749 | SN595817 | Yes |
| SY23 3DB | 52.416542 | -4.066434 | 259559 | 281848 | SN595818 | Yes |
| SY23 3DD | 52.41713 | -4.067285 | 259503 | 281915 | SN595819 | Yes |
| SY23 3DE | 52.415904 | -4.062816 | 259803 | 281770 | SN598817 | Yes |
| SY23 3DF | 52.418698 | -4.065564 | 259625 | 282086 | SN596820 | Yes |
| SY23 3DG | 52.424637 | -4.058605 | 260117 | 282733 | SN601827 | Yes |
| SY23 3DH | 52.431576 | -4.069049 | 259429 | 283525 | SN594835 | Yes |
| SY23 3DJ | 52.415354 | -4.069628 | 259338 | 281722 | SN593817 | No |
| SY23 3DL | 52.433091 | -4.078491 | 258792 | 283712 | SN587837 | Yes |
| SY23 3DN | 52.431333 | -4.055122 | 260375 | 283471 | SN603834 | Yes |
| SY23 3DP | 52.437016 | -4.055107 | 260394 | 284103 | SN603841 | Yes |
| SY23 3DQ | 52.431808 | -4.068634 | 259458 | 283550 | SN594835 | Yes |
| SY23 3DR | 52.447037 | -4.067213 | 259603 | 285241 | SN596852 | Yes |
| SY23 3DS | 52.435856 | -4.059246 | 260109 | 283982 | SN601839 | Yes |
| SY23 3DT | 52.435859 | -4.067338 | 259559 | 283998 | SN595839 | Yes |
| SY23 3DU | 52.417804 | -4.06886 | 259398 | 281993 | SN593819 | Yes |
| SY23 3DW | 52.433798 | -4.057135 | 260246 | 283749 | SN602837 | Yes |
| SY23 3DX | 52.415155 | -4.063001 | 259788 | 281687 | SN597816 | Yes |
| SY23 3DY | 52.416795 | -4.064343 | 259702 | 281872 | SN597818 | Yes |
| SY23 3DZ | 52.416142 | -4.063621 | 259749 | 281798 | SN597817 | Yes |
| SY23 3EA | 52.430242 | -4.024519 | 262452 | 283291 | SN624832 | Yes |
| SY23 3EB | 52.433575 | -4.017346 | 262950 | 283648 | SN629836 | No |
| SY23 3ED | 52.434262 | -4.011831 | 263327 | 283714 | SN633837 | Yes |
| SY23 3EE | 52.434781 | -4.009354 | 263497 | 283767 | SN634837 | Yes |
| SY23 3EF | 52.436835 | -4.002783 | 263950 | 283983 | SN639839 | Yes |
| SY23 3EG | 52.442657 | -3.993998 | 264565 | 284614 | SN645846 | Yes |
| SY23 3EH | 52.43818 | -3.994987 | 264484 | 284118 | SN644841 | Yes |
| SY23 3EJ | 52.439112 | -3.99091 | 264764 | 284214 | SN647842 | Yes |
| SY23 3EL | 52.438979 | -3.989756 | 264842 | 284197 | SN648841 | Yes |
| SY23 3EN | 52.437973 | -3.990226 | 264807 | 284086 | SN648840 | Yes |
| SY23 3EP | 52.438926 | -3.988047 | 264958 | 284188 | SN649841 | Yes |
| SY23 3EQ | 52.43523 | -3.998223 | 264255 | 283796 | SN642837 | Yes |
| SY23 3ER | 52.441623 | -3.97525 | 265836 | 284464 | SN658844 | Yes |
| SY23 3ES | 52.438535 | -3.983498 | 265266 | 284136 | SN652841 | Yes |
| SY23 3ET | 52.441059 | -3.958878 | 266947 | 284371 | SN669843 | Yes |
| SY23 3EU | 52.441967 | -3.951782 | 267432 | 284459 | SN674844 | Yes |
| SY23 3EW | 52.437192 | -3.988528 | 264920 | 283996 | SN649839 | Yes |
| SY23 3EX | 52.44095 | -3.928857 | 268987 | 284304 | SN689843 | Yes |
| SY23 3EY | 52.438269 | -3.962785 | 266673 | 284068 | SN666840 | Yes |
| SY23 3EZ | 52.434344 | -3.947855 | 267676 | 283604 | SN676836 | Yes |
| SY23 3FA | 52.437686 | -3.986947 | 265029 | 284048 | SN650840 | Yes |
| SY23 3FB | 52.417094 | -4.066754 | 259539 | 281910 | SN595819 | Yes |
| SY23 3FD | 52.413606 | -4.064664 | 259670 | 281518 | SN596815 | Yes |
| SY23 3FE | 52.415164 | -4.064031 | 259718 | 281690 | SN597816 | Yes |
| SY23 3FF | 52.402265 | -4.045127 | 260963 | 280219 | SN609802 | Yes |
| SY23 3FG | 52.416427 | -4.066855 | 259530 | 281836 | SN595818 | No |
| SY23 3FH | 52.421385 | -4.060483 | 259979 | 282375 | SN599823 | Yes |
| SY23 3FJ | 52.421731 | -4.060749 | 259962 | 282414 | SN599824 | Yes |
| SY23 3FL | 52.417786 | -4.065271 | 259642 | 281984 | SN596819 | Yes |
| SY23 3FN | 52.422393 | -4.059927 | 260020 | 282486 | SN600824 | Yes |
| SY23 3FP | 52.423151 | -4.062345 | 259858 | 282575 | SN598825 | Yes |
| SY23 3FQ | 52.422342 | -4.062293 | 259859 | 282485 | SN598824 | Yes |
| SY23 3FR | 52.422144 | -4.061813 | 259891 | 282462 | SN598824 | Yes |
| SY23 3FS | 52.412593 | -4.077307 | 258807 | 281430 | SN588814 | Yes |
| SY23 3FT | 52.437681 | -3.985637 | 265118 | 284045 | SN651840 | Yes |
| SY23 3FU | 52.400767 | -4.06821 | 259388 | 280097 | SN593800 | Yes |
| SY23 3FW | 52.420847 | -4.038075 | 261501 | 282272 | SN615822 | Yes |
| SY23 3FX | 52.438653 | -3.985033 | 265162 | 284152 | SN651841 | Yes |
| SY23 3FY | 52.436521 | -4.057188 | 260251 | 284052 | SN602840 | Yes |
| SY23 3FZ | 52.436549 | -4.05713 | 260255 | 284055 | SN602840 | Yes |
| SY23 3GA | 52.406995 | -4.070928 | 259223 | 280795 | SN592807 | Yes |
| SY23 3GB | 52.407374 | -4.071401 | 259192 | 280838 | SN591808 | Yes |
| SY23 3GD | 52.407646 | -4.072267 | 259134 | 280870 | SN591808 | Yes |
| SY23 3GE | 52.406625 | -4.072072 | 259144 | 280756 | SN591807 | Yes |
| SY23 3GF | 52.406269 | -4.07132 | 259194 | 280715 | SN591807 | Yes |
| SY23 3GG | 52.407287 | -4.072265 | 259133 | 280830 | SN591808 | Yes |
| SY23 3GH | 52.416994 | -4.062734 | 259812 | 281891 | SN598818 | Yes |
| SY23 3GJ | 52.407063 | -4.070137 | 259277 | 280801 | SN592808 | Yes |