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? |
|---|---|---|---|---|---|---|
| SG11 2DQ | 51.884943 | 0.09086 | 544000 | 222775 | TL439227 | Yes |
| SG11 2DR | 51.887532 | 0.092913 | 544133 | 223067 | TL441230 | Yes |
| SG11 2DS | 51.886074 | 0.090941 | 544002 | 222901 | TL440229 | No |
| SG11 2DT | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2DU | 51.883617 | 0.093123 | 544160 | 222632 | TL441226 | Yes |
| SG11 2DW | 51.886382 | 0.091828 | 544062 | 222937 | TL440229 | Yes |
| SG11 2DX | 51.883526 | 0.095211 | 544304 | 222626 | TL443226 | Yes |
| SG11 2DY | 51.885498 | 0.102118 | 544773 | 222859 | TL447228 | Yes |
| SG11 2DZ | 51.88479 | 0.101983 | 544766 | 222780 | TL447227 | Yes |
| SG11 2EA | 51.907808 | 0.025163 | 539408 | 225190 | TL394251 | Yes |
| SG11 2EB | 51.884508 | 0.108189 | 545194 | 222761 | TL451227 | Yes |
| SG11 2ED | 51.873956 | 0.1054 | 545036 | 221582 | TL450215 | Yes |
| SG11 2EE | 51.877783 | 0.111623 | 545452 | 222020 | TL454220 | Yes |
| SG11 2EF | 51.876303 | 0.116929 | 545822 | 221866 | TL458218 | Yes |
| SG11 2EG | 51.8759 | 0.117302 | 545849 | 221822 | TL458218 | Yes |
| SG11 2EH | 51.876425 | 0.117632 | 545870 | 221881 | TL458218 | Yes |
| SG11 2EN | 51.876864 | 0.117231 | 545841 | 221929 | TL458219 | Yes |
| SG11 2EP | 51.87739 | 0.118956 | 545958 | 221991 | TL459219 | Yes |
| SG11 2EQ | 51.875724 | 0.116611 | 545802 | 221801 | TL458218 | No |
| SG11 2ER | 51.874522 | 0.113911 | 545620 | 221662 | TL456216 | Yes |
| SG11 2ES | 51.873066 | 0.108395 | 545245 | 221489 | TL452214 | Yes |
| SG11 2ET | 51.870906 | 0.106972 | 545154 | 221246 | TL451212 | Yes |
| SG11 2EU | 51.871772 | 0.106794 | 545139 | 221342 | TL451213 | Yes |
| SG11 2EX | 51.869643 | 0.104705 | 545002 | 221101 | TL450211 | No |
| SG11 2EY | 51.869759 | 0.107223 | 545175 | 221119 | TL451211 | Yes |
| SG11 2EZ | 51.871749 | 0.10611 | 545092 | 221338 | TL450213 | Yes |
| SG11 2HA | 51.870467 | 0.104351 | 544975 | 221192 | TL449211 | Yes |
| SG11 2HD | 51.870331 | 0.094365 | 544288 | 221157 | TL442211 | Yes |
| SG11 2HE | 51.86992 | 0.104253 | 544970 | 221131 | TL449211 | Yes |
| SG11 2HF | 51.86959 | 0.103133 | 544894 | 221092 | TL448210 | Yes |
| SG11 2HG | 51.872882 | 0.087961 | 543839 | 221428 | TL438214 | Yes |
| SG11 2HP | 51.887117 | 0.079786 | 543231 | 222995 | TL432229 | No |
| SG11 2HR | 51.889622 | 0.071851 | 542677 | 223258 | TL426232 | Yes |
| SG11 2HS | 51.894215 | 0.075056 | 542883 | 223775 | TL428237 | Yes |
| SG11 2HT | 51.90147 | 0.080755 | 543252 | 224593 | TL432245 | Yes |
| SG11 2HU | 51.901968 | 0.078554 | 543099 | 224644 | TL430246 | Yes |
| SG11 2HX | 51.908919 | 0.071416 | 542586 | 225403 | TL425254 | Yes |
| SG11 2HY | 51.912695 | 0.076563 | 542928 | 225833 | TL429258 | Yes |
| SG11 2HZ | 51.902066 | 0.080637 | 543242 | 224659 | TL432246 | Yes |
| SG11 2JA | 51.914597 | 0.067621 | 542307 | 226027 | TL423260 | Yes |
| SG11 2JB | 51.914809 | 0.065799 | 542181 | 226047 | TL421260 | Yes |
| SG11 2JD | 51.903457 | 0.093944 | 544153 | 224840 | TL441248 | Yes |
| SG11 2JE | 51.918341 | 0.066935 | 542248 | 226442 | TL422264 | Yes |
| SG11 2JF | 51.917792 | 0.062301 | 541931 | 226372 | TL419263 | Yes |
| SG11 2JG | 51.902087 | 0.083007 | 543405 | 224666 | TL434246 | Yes |
| SG11 2JH | 51.904187 | 0.094371 | 544180 | 224922 | TL441249 | Yes |
| SG11 2JL | 51.904439 | 0.094891 | 544215 | 224951 | TL442249 | Yes |
| SG11 2JN | 51.904667 | 0.095716 | 544271 | 224978 | TL442249 | Yes |
| SG11 2JP | 51.904045 | 0.095803 | 544279 | 224909 | TL442249 | Yes |
| SG11 2JQ | 51.902388 | 0.085798 | 543596 | 224705 | TL435247 | Yes |
| SG11 2JR | 51.903677 | 0.095234 | 544241 | 224867 | TL442248 | Yes |
| SG11 2JS | 51.905045 | 0.095661 | 544266 | 225020 | TL442250 | Yes |
| SG11 2JT | 51.904485 | 0.096812 | 544347 | 224960 | TL443249 | Yes |
| SG11 2JU | 51.909611 | 0.108886 | 545161 | 225554 | TL451255 | Yes |
| SG11 2JW | 51.904415 | 0.096242 | 544308 | 224951 | TL443249 | Yes |
| SG11 2JX | 51.897947 | 0.107932 | 545133 | 224255 | TL451242 | Yes |
| SG11 2JY | 51.89583 | 0.112164 | 545431 | 224028 | TL454240 | Yes |
| SG11 2LA | 51.896998 | 0.115243 | 545639 | 224164 | TL456241 | Yes |
| SG11 2LB | 51.895288 | 0.116776 | 545750 | 223977 | TL457239 | Yes |
| SG11 2LD | 51.897139 | 0.116863 | 545750 | 224183 | TL457241 | Yes |
| SG11 2LE | 51.905696 | 0.095008 | 544219 | 225091 | TL442250 | Yes |
| SG11 2LF | 51.90659 | 0.094773 | 544200 | 225190 | TL441251 | Yes |
| SG11 2LG | 51.907153 | 0.094974 | 544212 | 225253 | TL442252 | Yes |
| SG11 2LH | 51.896481 | 0.092326 | 544064 | 224061 | TL440240 | Yes |
| SG11 2LN | 51.910013 | 0.0914 | 543957 | 225564 | TL439255 | Yes |
| SG11 2LQ | 51.908849 | 0.093134 | 544080 | 225438 | TL440254 | Yes |
| SG11 2LS | 51.912113 | 0.093678 | 544107 | 225802 | TL441258 | Yes |
| SG11 2LT | 51.913034 | 0.095495 | 544229 | 225908 | TL442259 | Yes |
| SG11 2LW | 51.912467 | 0.090932 | 543917 | 225836 | TL439258 | Yes |
| SG11 2LX | 51.910504 | 0.097645 | 544385 | 225631 | TL443256 | Yes |
| SG11 2LY | 51.910927 | 0.094132 | 544142 | 225671 | TL441256 | Yes |
| SG11 2NB | 51.883867 | 0.087642 | 543782 | 222649 | TL437226 | Yes |
| SG11 2NH | 51.908363 | 0.032108 | 539884 | 225265 | TL398252 | Yes |
| SG11 2NJ | 51.908682 | 0.032384 | 539902 | 225301 | TL399253 | No |
| SG11 2NN | 51.907586 | 0.035475 | 540118 | 225185 | TL401251 | Yes |
| SG11 2NP | 51.902778 | 0.046712 | 540906 | 224672 | TL409246 | Yes |
| SG11 2NR | 51.900334 | 0.062009 | 541966 | 224430 | TL419244 | Yes |
| SG11 2NS | 51.904569 | 0.056941 | 541604 | 224891 | TL416248 | Yes |
| SG11 2NT | 51.908304 | 0.059292 | 541754 | 225311 | TL417253 | Yes |
| SG11 2NU | 51.908228 | 0.058533 | 541702 | 225301 | TL417253 | No |
| SG11 2PA | 51.895756 | 0.017993 | 538952 | 223836 | TL389238 | Yes |
| SG11 2PB | 51.89992 | 0.019546 | 539046 | 224302 | TL390243 | Yes |
| SG11 2PD | 51.90104 | 0.021355 | 539167 | 224430 | TL391244 | Yes |
| SG11 2PE | 51.906824 | 0.022822 | 539250 | 225076 | TL392250 | Yes |
| SG11 2PF | 51.9077 | 0.022062 | 539195 | 225172 | TL391251 | Yes |
| SG11 2PG | 51.908652 | 0.024242 | 539342 | 225282 | TL393252 | Yes |
| SG11 2PN | 51.904317 | 0.023741 | 539321 | 224799 | TL393247 | Yes |
| SG11 2PP | 51.897548 | 0.0413 | 540550 | 224080 | TL405240 | Yes |
| SG11 2PQ | 51.913346 | 0.024744 | 539362 | 225805 | TL393258 | Yes |
| SG11 2PR | 51.895879 | 0.045236 | 540826 | 223902 | TL408239 | Yes |
| SG11 2PS | 51.898302 | 0.04709 | 540946 | 224175 | TL409241 | Yes |
| SG11 2PT | 51.892158 | 0.048235 | 541044 | 223494 | TL410234 | Yes |
| SG11 2PU | 51.890856 | 0.055849 | 541572 | 223364 | TL415233 | Yes |
| SG11 2PW | 51.90617 | 0.02634 | 539494 | 225010 | TL394250 | Yes |
| SG11 2PX | 51.905887 | 0.027054 | 539544 | 224980 | TL395249 | Yes |
| SG11 2PY | 51.906154 | 0.02724 | 539556 | 225010 | TL395250 | Yes |
| SG11 2PZ | 51.907347 | 0.027425 | 539565 | 225143 | TL395251 | Yes |
| SG11 2QA | 51.908185 | 0.027841 | 539591 | 225237 | TL395252 | Yes |
| SG11 2QB | 51.906369 | 0.027788 | 539593 | 225035 | TL395250 | Yes |
| SG11 2QD | 51.909052 | 0.030249 | 539754 | 225338 | TL397253 | Yes |
| SG11 2QE | 51.906822 | 0.028637 | 539650 | 225087 | TL396250 | Yes |
| SG11 2QF | 51.907219 | 0.030152 | 539753 | 225134 | TL397251 | Yes |
| SG11 2QG | 51.906861 | 0.030063 | 539748 | 225094 | TL397250 | Yes |
| SG11 2QH | 51.906204 | 0.030615 | 539788 | 225022 | TL397250 | Yes |
| SG11 2QJ | 51.905546 | 0.028579 | 539650 | 224945 | TL396249 | Yes |
| SG11 2QL | 51.906627 | 0.032684 | 539929 | 225073 | TL399250 | Yes |
| SG11 2QN | 51.90675 | 0.031788 | 539867 | 225085 | TL398250 | Yes |
| SG11 2QP | 51.907015 | 0.029445 | 539705 | 225110 | TL397251 | Yes |
| SG11 2QQ | 51.906828 | 0.030934 | 539808 | 225092 | TL398250 | Yes |
| SG11 2QR | 51.908151 | 0.030849 | 539798 | 225239 | TL397252 | Yes |
| SG11 2QS | 51.907866 | 0.030167 | 539752 | 225206 | TL397252 | Yes |
| SG11 2QT | 51.910405 | 0.030485 | 539766 | 225489 | TL397254 | Yes |
| SG11 2QU | 51.909229 | 0.032467 | 539906 | 225362 | TL399253 | Yes |
| SG11 2QW | 51.905701 | 0.031101 | 539823 | 224967 | TL398249 | Yes |
| SG11 2QX | 51.923869 | 0.046436 | 540821 | 227017 | TL408270 | Yes |
| SG11 2QY | 51.926021 | 0.050417 | 541088 | 227264 | TL410272 | Yes |
| SG11 2QZ | 51.906908 | 0.025239 | 539416 | 225090 | TL394250 | Yes |
| SG11 2RD | 51.910279 | 0.026845 | 539516 | 225468 | TL395254 | Yes |
| SG11 2RE | 51.916343 | 0.027743 | 539559 | 226144 | TL395261 | Yes |
| SG11 2RF | 51.916354 | 0.023963 | 539299 | 226138 | TL392261 | Yes |
| SG11 2RG | 51.91734 | 0.023586 | 539270 | 226247 | TL392262 | Yes |
| SG11 2RH | 51.91812 | 0.022704 | 539207 | 226332 | TL392263 | Yes |
| SG11 2RJ | 51.91829 | 0.023817 | 539283 | 226353 | TL392263 | Yes |
| SG11 2RL | 51.911035 | 0.026283 | 539475 | 225551 | TL394255 | Yes |
| SG11 2RN | 51.925801 | 0.023122 | 539212 | 227187 | TL392271 | Yes |
| SG11 2RP | 51.927625 | 0.02319 | 539211 | 227390 | TL392273 | Yes |
| SG11 2RQ | 51.918118 | 0.020712 | 539070 | 226328 | TL390263 | Yes |
| SG11 2RR | 51.927759 | 0.024287 | 539286 | 227407 | TL392274 | Yes |
| SG11 2RS | 51.928487 | 0.025381 | 539359 | 227490 | TL393274 | Yes |
| SG11 2RT | 51.927727 | 0.023063 | 539202 | 227401 | TL392274 | No |
| SG11 2RW | 51.926855 | 0.024071 | 539274 | 227306 | TL392273 | Yes |
| SG11 2RZ | 51.927727 | 0.023063 | 539202 | 227401 | TL392274 | No |
| SG11 2SB | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2SH | 51.90005 | 0.064394 | 542131 | 224403 | TL421244 | No |
| SG11 2SJ | 51.90005 | 0.064394 | 542131 | 224403 | TL421244 | No |
| SG11 2SL | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2SN | 51.90005 | 0.064394 | 542131 | 224403 | TL421244 | No |
| SG11 2SS | 51.900133 | 0.06373 | 542085 | 224411 | TL420244 | No |
| SG11 2SU | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2SW | 51.900133 | 0.06373 | 542085 | 224411 | TL420244 | No |
| SG11 2TA | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WA | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WN | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WQ | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WR | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WS | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WT | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WU | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WW | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WX | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WY | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2WZ | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2XA | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2XB | 51.90005 | 0.064394 | 542131 | 224403 | TL421244 | No |
| SG11 2XJ | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2XY | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2XZ | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2YT | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2ZG | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2ZH | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2ZJ | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2ZN | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG11 2ZX | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG12 0AA | 51.813417 | -0.035378 | 535527 | 214579 | TL355145 | Yes |
| SG12 0AB | 51.812941 | -0.035935 | 535490 | 214525 | TL354145 | No |
| SG12 0AD | 51.814664 | -0.037355 | 535387 | 214714 | TL353147 | Yes |
| SG12 0AE | 51.814171 | -0.038522 | 535308 | 214657 | TL353146 | No |
| SG12 0AF | 51.813645 | -0.037181 | 535402 | 214601 | TL354146 | No |
| SG12 0AG | 51.814287 | -0.035238 | 535534 | 214676 | TL355146 | Yes |
| SG12 0AH | 51.81736 | -0.044274 | 534902 | 215001 | TL349150 | No |
| SG12 0AJ | 51.81376 | -0.03706 | 535410 | 214614 | TL354146 | Yes |
| SG12 0AL | 51.817312 | -0.041375 | 535102 | 215001 | TL351150 | No |
| SG12 0AN | 51.81375 | -0.040209 | 535193 | 214607 | TL351146 | Yes |
| SG12 0AP | 51.815989 | -0.055389 | 534140 | 214828 | TL341148 | Yes |
| SG12 0AQ | 51.814884 | -0.035996 | 535480 | 214741 | TL354147 | Yes |
| SG12 0AR | 51.814704 | -0.041386 | 535109 | 214711 | TL351147 | Yes |
| SG12 0AS | 51.814558 | -0.040696 | 535157 | 214696 | TL351146 | Yes |
| SG12 0AT | 51.815606 | -0.040433 | 535172 | 214813 | TL351148 | Yes |
| SG12 0AU | 51.816247 | -0.041682 | 535084 | 214882 | TL350148 | Yes |
| SG12 0AW | 51.813715 | -0.042445 | 535039 | 214599 | TL350145 | Yes |
| SG12 0AX | 51.817258 | -0.04351 | 534955 | 214991 | TL349149 | Yes |
| SG12 0AY | 51.81703 | -0.042228 | 535044 | 214968 | TL350149 | Yes |
| SG12 0AZ | 51.813896 | -0.04795 | 534659 | 214609 | TL346146 | Yes |
| SG12 0BA | 51.813028 | -0.049815 | 534533 | 214509 | TL345145 | Yes |
| SG12 0BB | 51.813862 | -0.049649 | 534542 | 214602 | TL345146 | Yes |
| SG12 0BD | 51.816219 | -0.03839 | 535311 | 214885 | TL353148 | Yes |
| SG12 0BE | 51.817769 | -0.038061 | 535329 | 215058 | TL353150 | Yes |
| SG12 0BF | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG12 0BG | 51.818017 | -0.038863 | 535273 | 215084 | TL352150 | Yes |
| SG12 0BH | 51.817116 | -0.041485 | 535095 | 214979 | TL350149 | Yes |
| SG12 0BJ | 51.817664 | -0.037137 | 535393 | 215048 | TL353150 | Yes |
| SG12 0BL | 51.817403 | -0.036583 | 535432 | 215020 | TL354150 | Yes |
| SG12 0BN | 51.816149 | -0.037421 | 535378 | 214879 | TL353148 | Yes |
| SG12 0BP | 51.816504 | -0.036041 | 535472 | 214921 | TL354149 | Yes |
| SG12 0BQ | 51.818248 | -0.03762 | 535358 | 215112 | TL353151 | Yes |
| SG12 0BS | 51.815955 | -0.0355 | 535511 | 214861 | TL355148 | Yes |
| SG12 0BT | 51.815228 | -0.036677 | 535432 | 214778 | TL354147 | Yes |
| SG12 0BU | 51.816673 | -0.040285 | 535179 | 214932 | TL351149 | Yes |
| SG12 0BW | 51.816899 | -0.036576 | 535434 | 214964 | TL354149 | Yes |
| SG12 0BX | 51.814429 | -0.05077 | 534463 | 214663 | TL344146 | Yes |