This page provides postcode data for the Hertfordshire English ceremonial county. Hertfordshire contains approximately 453,813 households with a population of about 1,116,077 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| AL9 7TR | 51.722381 | -0.237991 | 521806 | 204098 | TL218040 | Yes |
| AL9 7TS | 51.724 | -0.222508 | 522871 | 204304 | TL228043 | Yes |
| AL9 7TT | 51.722745 | -0.221617 | 522936 | 204166 | TL229041 | Yes |
| AL9 7TU | 51.718071 | -0.21818 | 523186 | 203652 | TL231036 | Yes |
| AL9 7TW | 51.727283 | -0.2303 | 522324 | 204656 | TL223046 | Yes |
| AL9 7TX | 51.719129 | -0.220904 | 522995 | 203765 | TL229037 | Yes |
| AL9 7TY | 51.714734 | -0.220497 | 523035 | 203277 | TL230032 | Yes |
| AL9 7UG | 51.719642 | -0.203815 | 524174 | 203851 | TL241038 | Yes |
| AL9 7UH | 51.719569 | -0.202008 | 524299 | 203846 | TL242038 | Yes |
| AL9 7UJ | 51.719264 | -0.201427 | 524340 | 203813 | TL243038 | Yes |
| AL9 7UL | 51.717709 | -0.202096 | 524298 | 203639 | TL242036 | Yes |
| AL9 7UN | 51.717293 | -0.200158 | 524433 | 203596 | TL244035 | Yes |
| AL9 7UP | 51.721005 | -0.201792 | 524310 | 204006 | TL243040 | Yes |
| AL9 7UQ | 51.719516 | -0.203255 | 524213 | 203837 | TL242038 | Yes |
| AL9 7UR | 51.724022 | -0.203888 | 524157 | 204338 | TL241043 | Yes |
| AL9 7UT | 51.726264 | -0.203466 | 524180 | 204588 | TL241045 | Yes |
| AL9 7UU | 51.724265 | -0.203299 | 524197 | 204366 | TL241043 | Yes |
| AL9 7UW | 51.719227 | -0.200197 | 524425 | 203811 | TL244038 | Yes |
| AL9 7UX | 51.724028 | -0.202497 | 524253 | 204341 | TL242043 | Yes |
| AL9 7WA | 51.724027 | -0.202468 | 524255 | 204340 | TL242043 | No |
| AL9 7WB | 51.724027 | -0.202468 | 524255 | 204340 | TL242043 | No |
| AL9 7WD | 51.724027 | -0.202468 | 524255 | 204340 | TL242043 | No |
| AL9 7WX | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7WY | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7WZ | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7XA | 51.724027 | -0.202468 | 524255 | 204340 | TL242043 | No |
| AL9 7XN | 51.724027 | -0.202468 | 524255 | 204340 | TL242043 | No |
| AL9 7XQ | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7XS | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7YZ | 51.735564 | -0.221968 | 522877 | 205591 | TL228055 | Yes |
| AL9 7ZD | 51.726926 | -0.20858 | 523825 | 204652 | TL238046 | No |
| AL9 7ZE | 51.726926 | -0.20858 | 523825 | 204652 | TL238046 | No |
| AL9 7ZF | 51.76427 | -0.22623 | 522505 | 208776 | TL225087 | No |
| AL9 7ZG | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZH | 51.726636 | -0.204305 | 524121 | 204628 | TL241046 | No |
| AL9 7ZJ | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZL | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZN | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZP | 51.734772 | -0.223085 | 522802 | 205501 | TL228055 | No |
| AL9 7ZQ | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZR | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZS | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZT | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZU | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZW | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZX | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZY | 51.764314 | -0.22617 | 522509 | 208781 | TL225087 | No |
| AL9 7ZZ | 51.726636 | -0.204305 | 524121 | 204628 | TL241046 | No |
| CM19 5EH | 51.775752 | 0.036276 | 540583 | 210526 | TL405105 | Yes |
| CM20 2EX | 51.798796 | 0.132862 | 547171 | 213279 | TL471132 | No |
| CM20 2FG | 51.785351 | 0.095371 | 544629 | 211709 | TL446117 | Yes |
| CM20 2FN | 51.784887 | 0.097191 | 544756 | 211661 | TL447116 | Yes |
| CM20 2FP | 51.785655 | 0.097502 | 544775 | 211747 | TL447117 | Yes |
| CM20 2FR | 51.786333 | 0.098331 | 544830 | 211824 | TL448118 | Yes |
| CM20 2FT | 51.78539 | 0.098215 | 544825 | 211719 | TL448117 | Yes |
| CM20 2FU | 51.785181 | 0.097335 | 544765 | 211694 | TL447116 | Yes |
| CM20 2FW | 51.784196 | 0.097101 | 544752 | 211584 | TL447115 | Yes |
| CM20 2FX | 51.784482 | 0.098231 | 544829 | 211618 | TL448116 | Yes |
| CM20 2FY | 51.785185 | 0.099133 | 544889 | 211698 | TL448116 | Yes |
| CM20 2FZ | 51.785563 | 0.100137 | 544957 | 211742 | TL449117 | Yes |
| CM20 2GN | 51.797236 | 0.090498 | 544255 | 213021 | TL442130 | Yes |
| CM20 2HE | 51.795661 | 0.135107 | 547336 | 212935 | TL473129 | Yes |
| CM20 2QP | 51.785519 | 0.078807 | 543486 | 211695 | TL434116 | Yes |
| CM20 2QR | 51.785086 | 0.09765 | 544787 | 211684 | TL447116 | No |
| CM20 2QS | 51.783521 | 0.095606 | 544651 | 211506 | TL446115 | Yes |
| CM20 2QT | 51.78549 | 0.088056 | 544124 | 211710 | TL441117 | Yes |
| CM20 2QU | 51.786387 | 0.080615 | 543608 | 211795 | TL436117 | Yes |
| CM20 2QX | 51.785709 | 0.079801 | 543554 | 211718 | TL435117 | Yes |
| CM20 2QY | 51.785665 | 0.07819 | 543443 | 211710 | TL434117 | Yes |
| CM20 2QZ | 51.786349 | 0.078671 | 543474 | 211787 | TL434117 | Yes |
| CM20 2RA | 51.798474 | 0.070845 | 542896 | 213120 | TL428131 | Yes |
| CM20 2RB | 51.78895 | 0.100294 | 544957 | 212119 | TL449121 | Yes |
| CM20 2RD | 51.79108 | 0.100872 | 544990 | 212357 | TL449123 | Yes |
| CM20 2RE | 51.791238 | 0.101096 | 545005 | 212375 | TL450123 | Yes |
| CM20 2RF | 51.794779 | 0.094677 | 544551 | 212756 | TL445127 | Yes |
| CM20 2RG | 51.797545 | 0.088815 | 544138 | 213052 | TL441130 | Yes |
| CM20 2RH | 51.801322 | 0.088279 | 544089 | 213471 | TL440134 | Yes |
| CM20 2RJ | 51.801576 | 0.085622 | 543905 | 213494 | TL439134 | Yes |
| CM20 2RL | 51.799892 | 0.094856 | 544547 | 213325 | TL445133 | Yes |
| CM20 2RN | 51.794212 | 0.10676 | 545386 | 212717 | TL453127 | Yes |
| CM20 2RP | 51.793855 | 0.106627 | 545378 | 212677 | TL453126 | Yes |
| CM20 2RQ | 51.797096 | 0.088272 | 544102 | 213001 | TL441130 | No |
| CM20 2RR | 51.798139 | 0.13038 | 547002 | 213201 | TL470132 | No |
| CM20 2RW | 51.785471 | 0.080515 | 543604 | 211693 | TL436116 | Yes |
| CM20 2SF | 51.796294 | 0.088351 | 544110 | 212912 | TL441129 | Yes |
| CM20 2SH | 51.798139 | 0.13038 | 547002 | 213201 | TL470132 | No |
| CM20 2SQ | 51.798139 | 0.13038 | 547002 | 213201 | TL470132 | No |
| CM20 2SR | 51.799011 | 0.131872 | 547102 | 213301 | TL471133 | No |
| CM21 0AA | 51.803621 | 0.137514 | 547476 | 213825 | TL474138 | Yes |
| CM21 0AB | 51.807504 | 0.137103 | 547435 | 214256 | TL474142 | Yes |
| CM21 0AD | 51.801993 | 0.13954 | 547621 | 213648 | TL476136 | Yes |
| CM21 0AE | 51.801453 | 0.138557 | 547555 | 213586 | TL475135 | Yes |
| CM21 0AF | 51.799723 | 0.143697 | 547915 | 213404 | TL479134 | Yes |
| CM21 0AG | 51.800677 | 0.139202 | 547602 | 213501 | TL476135 | No |
| CM21 0AH | 51.802048 | 0.135496 | 547342 | 213646 | TL473136 | Yes |
| CM21 0AJ | 51.799121 | 0.132762 | 547163 | 213315 | TL471133 | Yes |
| CM21 0AL | 51.806121 | 0.139503 | 547605 | 214107 | TL476141 | Yes |
| CM21 0AN | 51.800466 | 0.130519 | 547004 | 213460 | TL470134 | Yes |
| CM21 0AP | 51.799594 | 0.144329 | 547959 | 213391 | TL479133 | Yes |
| CM21 0AQ | 51.801511 | 0.132381 | 547129 | 213580 | TL471135 | Yes |
| CM21 0AR | 51.800348 | 0.132529 | 547143 | 213451 | TL471134 | Yes |
| CM21 0AS | 51.802139 | 0.131453 | 547063 | 213648 | TL470136 | Yes |
| CM21 0AT | 51.803305 | 0.135584 | 547344 | 213786 | TL473137 | Yes |
| CM21 0AU | 51.8062 | 0.13913 | 547579 | 214115 | TL475141 | Yes |
| CM21 0AW | 51.810637 | 0.140399 | 547652 | 214611 | TL476146 | No |
| CM21 0AX | 51.806481 | 0.137983 | 547499 | 214144 | TL474141 | Yes |
| CM21 0AY | 51.806708 | 0.137384 | 547457 | 214168 | TL474141 | Yes |
| CM21 0AZ | 51.807449 | 0.140654 | 547680 | 214257 | TL476142 | Yes |
| CM21 0BA | 51.807838 | 0.140992 | 547702 | 214301 | TL477143 | No |
| CM21 0BB | 51.808244 | 0.141417 | 547730 | 214347 | TL477143 | Yes |
| CM21 0BD | 51.799309 | 0.145679 | 548053 | 213362 | TL480133 | Yes |
| CM21 0BE | 51.801175 | 0.131074 | 547040 | 213540 | TL470135 | Yes |
| CM21 0BG | 51.810637 | 0.140414 | 547653 | 214611 | TL476146 | No |
| CM21 0BJ | 51.815808 | 0.147289 | 548110 | 215200 | TL481151 | Yes |
| CM21 0BL | 51.816097 | 0.145751 | 548003 | 215229 | TL480152 | Yes |
| CM21 0BN | 51.81663 | 0.144136 | 547890 | 215285 | TL478152 | Yes |
| CM21 0BP | 51.818031 | 0.134844 | 547245 | 215422 | TL472154 | Yes |
| CM21 0BQ | 51.81492 | 0.147131 | 548102 | 215101 | TL481151 | No |
| CM21 0BS | 51.815054 | 0.146717 | 548073 | 215115 | TL480151 | Yes |
| CM21 0BT | 51.815316 | 0.145655 | 547999 | 215142 | TL479151 | Yes |
| CM21 0BU | 51.815209 | 0.144649 | 547930 | 215128 | TL479151 | Yes |
| CM21 0BW | 51.816873 | 0.140187 | 547617 | 215304 | TL476153 | Yes |
| CM21 0BX | 51.815219 | 0.143562 | 547855 | 215127 | TL478151 | Yes |
| CM21 0BY | 51.813718 | 0.143563 | 547860 | 214960 | TL478149 | Yes |
| CM21 0BZ | 51.813431 | 0.14397 | 547889 | 214929 | TL478149 | Yes |
| CM21 0DA | 51.815563 | 0.143433 | 547845 | 215165 | TL478151 | Yes |
| CM21 0DB | 51.816876 | 0.147398 | 548114 | 215319 | TL481153 | Yes |
| CM21 0DD | 51.812864 | 0.143044 | 547827 | 214864 | TL478148 | Yes |
| CM21 0DE | 51.817489 | 0.147311 | 548106 | 215387 | TL481153 | Yes |
| CM21 0DF | 51.817443 | 0.146409 | 548044 | 215380 | TL480153 | Yes |
| CM21 0DG | 51.816717 | 0.147216 | 548102 | 215301 | TL481153 | No |
| CM21 0DH | 51.813558 | 0.141974 | 547751 | 214939 | TL477149 | Yes |
| CM21 0DJ | 51.815631 | 0.148122 | 548168 | 215182 | TL481151 | Yes |
| CM21 0DL | 51.810637 | 0.140414 | 547653 | 214611 | TL476146 | No |
| CM21 0DN | 51.815894 | 0.147961 | 548156 | 215211 | TL481152 | Yes |
| CM21 0DQ | 51.815879 | 0.148337 | 548182 | 215210 | TL481152 | Yes |
| CM21 0DR | 51.809938 | 0.144718 | 547952 | 214542 | TL479145 | Yes |
| CM21 0DS | 51.806523 | 0.136679 | 547409 | 214146 | TL474141 | Yes |
| CM21 0DT | 51.808141 | 0.123308 | 546482 | 214299 | TL464142 | Yes |
| CM21 0DU | 51.807365 | 0.121952 | 546391 | 214210 | TL463142 | Yes |
| CM21 0DW | 51.815771 | 0.140904 | 547670 | 215183 | TL476151 | Yes |
| CM21 0DX | 51.810637 | 0.140414 | 547653 | 214611 | TL476146 | No |
| CM21 0DY | 51.812116 | 0.146055 | 548037 | 214787 | TL480147 | Yes |
| CM21 0DZ | 51.812171 | 0.145042 | 547967 | 214791 | TL479147 | Yes |
| CM21 0EA | 51.81174 | 0.144006 | 547897 | 214741 | TL478147 | Yes |
| CM21 0EB | 51.81312 | 0.146262 | 548048 | 214899 | TL480148 | Yes |
| CM21 0ED | 51.814398 | 0.146192 | 548039 | 215041 | TL480150 | Yes |
| CM21 0EE | 51.813368 | 0.144968 | 547958 | 214924 | TL479149 | Yes |
| CM21 0EF | 51.813333 | 0.144459 | 547923 | 214919 | TL479149 | Yes |
| CM21 0EG | 51.811343 | 0.143087 | 547835 | 214695 | TL478146 | Yes |
| CM21 0EH | 51.81208 | 0.143093 | 547833 | 214777 | TL478147 | Yes |
| CM21 0EJ | 51.810738 | 0.143726 | 547881 | 214629 | TL478146 | Yes |
| CM21 0EL | 51.810866 | 0.14263 | 547805 | 214641 | TL478146 | Yes |
| CM21 0EN | 51.816493 | 0.139791 | 547591 | 215261 | TL475152 | Yes |
| CM21 0EP | 51.810278 | 0.141847 | 547753 | 214574 | TL477145 | Yes |
| CM21 0ER | 51.809235 | 0.142306 | 547788 | 214459 | TL477144 | Yes |
| CM21 0ES | 51.810832 | 0.141061 | 547697 | 214634 | TL476146 | Yes |
| CM21 0ET | 51.81207 | 0.141178 | 547701 | 214772 | TL477147 | Yes |
| CM21 0EU | 51.809447 | 0.144028 | 547906 | 214486 | TL479144 | Yes |
| CM21 0EW | 51.815734 | 0.139001 | 547539 | 215175 | TL475151 | Yes |
| CM21 0EY | 51.808599 | 0.142667 | 547815 | 214389 | TL478143 | Yes |
| CM21 0EZ | 51.815667 | 0.141682 | 547724 | 215173 | TL477151 | Yes |
| CM21 0FA | 51.815444 | 0.140598 | 547650 | 215146 | TL476151 | Yes |
| CM21 0FB | 51.814183 | 0.139247 | 547561 | 215003 | TL475150 | Yes |
| CM21 0FD | 51.814434 | 0.137808 | 547461 | 215028 | TL474150 | Yes |
| CM21 0FE | 51.814758 | 0.138258 | 547491 | 215065 | TL474150 | Yes |
| CM21 0FF | 51.814414 | 0.139911 | 547606 | 215030 | TL476150 | Yes |
| CM21 0FG | 51.814728 | 0.139447 | 547573 | 215064 | TL475150 | Yes |
| CM21 0FH | 51.814381 | 0.140228 | 547628 | 215027 | TL476150 | Yes |
| CM21 0FJ | 51.814271 | 0.14134 | 547705 | 215017 | TL477150 | Yes |
| CM21 0FL | 51.813824 | 0.141159 | 547694 | 214967 | TL476149 | Yes |
| CM21 0FN | 51.818324 | 0.143926 | 547870 | 215473 | TL478154 | Yes |
| CM21 0FP | 51.817528 | 0.142684 | 547787 | 215382 | TL477153 | Yes |
| CM21 0FQ | 51.818131 | 0.143163 | 547818 | 215450 | TL478154 | Yes |
| CM21 0FR | 51.817557 | 0.144093 | 547884 | 215388 | TL478153 | Yes |
| CM21 0FS | 51.819473 | 0.145055 | 547944 | 215603 | TL479156 | Yes |
| CM21 0FT | 51.819083 | 0.143716 | 547853 | 215557 | TL478155 | Yes |
| CM21 0HA | 51.806015 | 0.135944 | 547360 | 214088 | TL473140 | Yes |
| CM21 0HB | 51.806876 | 0.135564 | 547331 | 214183 | TL473141 | Yes |
| CM21 0HD | 51.806763 | 0.133847 | 547213 | 214167 | TL472141 | Yes |
| CM21 0HE | 51.806923 | 0.136437 | 547391 | 214190 | TL473141 | Yes |
| CM21 0HF | 51.80726 | 0.136221 | 547375 | 214227 | TL473142 | Yes |
| CM21 0HG | 51.807357 | 0.134311 | 547243 | 214234 | TL472142 | Yes |
| CM21 0HH | 51.807103 | 0.130484 | 546980 | 214198 | TL469141 | Yes |
| CM21 0HJ | 51.807124 | 0.130804 | 547002 | 214201 | TL470142 | No |
| CM21 0HL | 51.8075 | 0.135347 | 547314 | 214252 | TL473142 | Yes |
| CM21 0HN | 51.809339 | 0.125178 | 546607 | 214436 | TL466144 | Yes |
| CM21 0HP | 51.807255 | 0.132507 | 547119 | 214219 | TL471142 | Yes |
| CM21 0HQ | 51.807412 | 0.132297 | 547104 | 214236 | TL471142 | Yes |
| CM21 0HR | 51.806576 | 0.132257 | 547104 | 214143 | TL471141 | Yes |
| CM21 0HS | 51.805795 | 0.133163 | 547169 | 214058 | TL471140 | Yes |
| CM21 0HT | 51.808198 | 0.125632 | 546642 | 214310 | TL466143 | Yes |
| CM21 0HU | 51.808688 | 0.124901 | 546590 | 214363 | TL465143 | Yes |
| CM21 0HW | 51.808226 | 0.124589 | 546570 | 214311 | TL465143 | No |
| CM21 0HX | 51.807184 | 0.124482 | 546566 | 214195 | TL465141 | Yes |
| CM21 0HY | 51.807542 | 0.12312 | 546471 | 214232 | TL464142 | Yes |
| CM21 0HZ | 51.807069 | 0.122416 | 546424 | 214178 | TL464141 | Yes |
| CM21 0JA | 51.806555 | 0.122465 | 546429 | 214121 | TL464141 | Yes |
| CM21 0JB | 51.805885 | 0.121258 | 546348 | 214044 | TL463140 | Yes |
| CM21 0JD | 51.805006 | 0.1201 | 546271 | 213944 | TL462139 | Yes |