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? |
|---|---|---|---|---|---|---|
| SG1 4ER | 51.923315 | -0.18393 | 524983 | 226535 | TL249265 | Yes |
| SG1 4ES | 51.923472 | -0.184825 | 524921 | 226551 | TL249265 | Yes |
| SG1 4ET | 51.92182 | -0.189066 | 524634 | 226360 | TL246263 | Yes |
| SG1 4EU | 51.92192 | -0.187942 | 524711 | 226373 | TL247263 | Yes |
| SG1 4EW | 51.922518 | -0.184151 | 524970 | 226446 | TL249264 | Yes |
| SG1 4EX | 51.92207 | -0.187194 | 524762 | 226391 | TL247263 | Yes |
| SG1 4EY | 51.92242 | -0.185958 | 524846 | 226432 | TL248264 | Yes |
| SG1 4EZ | 51.922485 | -0.186683 | 524796 | 226438 | TL247264 | Yes |
| SG1 4FA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 4FB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 4FD | 51.926046 | -0.219133 | 522555 | 226779 | TL225267 | Yes |
| SG1 4FE | 51.92099 | -0.211844 | 523070 | 226229 | TL230262 | Yes |
| SG1 4FF | 51.922354 | -0.17008 | 525938 | 226452 | TL259264 | Yes |
| SG1 4FG | 51.923051 | -0.21022 | 523176 | 226461 | TL231264 | Yes |
| SG1 4FH | 51.923497 | -0.210551 | 523152 | 226510 | TL231265 | Yes |
| SG1 4FJ | 51.921164 | -0.211444 | 523097 | 226249 | TL230262 | Yes |
| SG1 4FL | 51.923084 | -0.166735 | 526166 | 226539 | TL261265 | Yes |
| SG1 4FN | 51.922669 | -0.166039 | 526215 | 226494 | TL262264 | Yes |
| SG1 4FP | 51.920263 | -0.201329 | 523795 | 226166 | TL237261 | Yes |
| SG1 4FQ | 51.922354 | -0.17008 | 525938 | 226452 | TL259264 | Yes |
| SG1 4FR | 51.922663 | -0.164483 | 526322 | 226496 | TL263264 | Yes |
| SG1 4FS | 51.92314 | -0.164522 | 526318 | 226549 | TL263265 | Yes |
| SG1 4FT | 51.92264 | -0.167102 | 526142 | 226489 | TL261264 | Yes |
| SG1 4FU | 51.923358 | -0.208521 | 523292 | 226498 | TL232264 | Yes |
| SG1 4FW | 51.922005 | -0.165557 | 526250 | 226421 | TL262264 | Yes |
| SG1 4FX | 51.92141 | -0.164883 | 526298 | 226356 | TL262263 | Yes |
| SG1 4FY | 51.921157 | -0.164806 | 526304 | 226328 | TL263263 | Yes |
| SG1 4FZ | 51.922176 | -0.16731 | 526129 | 226437 | TL261264 | Yes |
| SG1 4GA | 51.923519 | -0.165175 | 526272 | 226590 | TL262265 | Yes |
| SG1 4GB | 51.923442 | -0.165469 | 526252 | 226581 | TL262265 | Yes |
| SG1 4GD | 51.923386 | -0.165879 | 526224 | 226574 | TL262265 | Yes |
| SG1 4GE | 51.923339 | -0.166332 | 526193 | 226568 | TL261265 | Yes |
| SG1 4GF | 51.923292 | -0.166813 | 526160 | 226562 | TL261265 | Yes |
| SG1 4GG | 51.922991 | -0.17116 | 525862 | 226521 | TL258265 | Yes |
| SG1 4GH | 51.923254 | -0.167266 | 526129 | 226557 | TL261265 | Yes |
| SG1 4GJ | 51.923208 | -0.167777 | 526094 | 226551 | TL260265 | Yes |
| SG1 4GL | 51.923081 | -0.168247 | 526062 | 226536 | TL260265 | Yes |
| SG1 4GN | 51.92307 | -0.168728 | 526029 | 226534 | TL260265 | Yes |
| SG1 4GP | 51.923086 | -0.169149 | 526000 | 226535 | TL259265 | Yes |
| SG1 4GQ | 51.922855 | -0.169333 | 525988 | 226509 | TL259265 | Yes |
| SG1 4GR | 51.921284 | -0.206917 | 523408 | 226270 | TL234262 | Yes |
| SG1 4GS | 51.922302 | -0.17078 | 525890 | 226445 | TL258264 | Yes |
| SG1 4GT | 51.922808 | -0.170353 | 525918 | 226502 | TL259265 | Yes |
| SG1 4GU | 51.923296 | -0.170493 | 525907 | 226556 | TL259265 | Yes |
| SG1 4GW | 51.92378 | -0.170997 | 525871 | 226609 | TL258266 | Yes |
| SG1 4GX | 51.922354 | -0.17008 | 525938 | 226452 | TL259264 | Yes |
| SG1 4GY | 51.922354 | -0.17008 | 525938 | 226452 | TL259264 | Yes |
| SG1 4GZ | 51.926221 | -0.20816 | 523309 | 226817 | TL233268 | Yes |
| SG1 4HA | 51.922726 | -0.18599 | 524843 | 226466 | TL248264 | Yes |
| SG1 4HB | 51.923299 | -0.186388 | 524814 | 226529 | TL248265 | Yes |
| SG1 4HD | 51.923913 | -0.186029 | 524837 | 226598 | TL248265 | Yes |
| SG1 4HE | 51.921287 | -0.191821 | 524446 | 226296 | TL244262 | Yes |
| SG1 4HF | 51.921254 | -0.190863 | 524512 | 226294 | TL245262 | Yes |
| SG1 4HG | 51.920562 | -0.190323 | 524551 | 226218 | TL245262 | Yes |
| SG1 4HH | 51.920488 | -0.189585 | 524602 | 226211 | TL246262 | Yes |
| SG1 4HJ | 51.920928 | -0.189509 | 524606 | 226260 | TL246262 | Yes |
| SG1 4HL | 51.920843 | -0.188654 | 524665 | 226252 | TL246262 | Yes |
| SG1 4HN | 51.920995 | -0.187485 | 524745 | 226271 | TL247262 | Yes |
| SG1 4HP | 51.922069 | -0.186554 | 524806 | 226392 | TL248263 | Yes |
| SG1 4HQ | 51.921165 | -0.190328 | 524549 | 226285 | TL245262 | Yes |
| SG1 4HR | 51.921207 | -0.183739 | 525002 | 226301 | TL250263 | No |
| SG1 4HS | 51.920875 | -0.18144 | 525161 | 226268 | TL251262 | Yes |
| SG1 4HT | 51.920915 | -0.180537 | 525223 | 226274 | TL252262 | Yes |
| SG1 4HU | 51.921485 | -0.180746 | 525207 | 226337 | TL252263 | Yes |
| SG1 4HW | 51.921243 | -0.18666 | 524801 | 226300 | TL248262 | Yes |
| SG1 4HX | 51.921596 | -0.181542 | 525152 | 226348 | TL251263 | Yes |
| SG1 4HY | 51.921945 | -0.180844 | 525199 | 226388 | TL251263 | Yes |
| SG1 4HZ | 51.922429 | -0.180723 | 525206 | 226442 | TL252264 | Yes |
| SG1 4JA | 51.922127 | -0.179804 | 525270 | 226410 | TL252264 | Yes |
| SG1 4JB | 51.92287 | -0.179585 | 525283 | 226493 | TL252264 | Yes |
| SG1 4JD | 51.923138 | -0.18065 | 525209 | 226521 | TL252265 | Yes |
| SG1 4JE | 51.923485 | -0.180375 | 525227 | 226560 | TL252265 | Yes |
| SG1 4JF | 51.923727 | -0.180946 | 525187 | 226586 | TL251265 | Yes |
| SG1 4JG | 51.922151 | -0.182537 | 525082 | 226408 | TL250264 | Yes |
| SG1 4JH | 51.92222 | -0.18348 | 525017 | 226414 | TL250264 | Yes |
| SG1 4JJ | 51.922627 | -0.182503 | 525083 | 226461 | TL250264 | Yes |
| SG1 4JL | 51.922742 | -0.181801 | 525131 | 226475 | TL251264 | Yes |
| SG1 4JN | 51.922905 | -0.182449 | 525086 | 226492 | TL250264 | Yes |
| SG1 4JP | 51.923324 | -0.182213 | 525101 | 226539 | TL251265 | Yes |
| SG1 4JQ | 51.92187 | -0.182941 | 525055 | 226376 | TL250263 | Yes |
| SG1 4JR | 51.923721 | -0.182314 | 525093 | 226583 | TL250265 | Yes |
| SG1 4JS | 51.923005 | -0.183666 | 525002 | 226501 | TL250265 | No |
| SG1 4JT | 51.922039 | -0.179342 | 525302 | 226401 | TL253264 | No |
| SG1 4JU | 51.926111 | -0.206811 | 523402 | 226807 | TL234268 | Yes |
| SG1 4JW | 51.923084 | -0.183576 | 525008 | 226510 | TL250265 | Yes |
| SG1 4JX | 51.921507 | -0.178113 | 525388 | 226344 | TL253263 | Yes |
| SG1 4JY | 51.921241 | -0.178924 | 525333 | 226313 | TL253263 | Yes |
| SG1 4JZ | 51.921074 | -0.179774 | 525275 | 226293 | TL252262 | Yes |
| SG1 4LA | 51.921632 | -0.179751 | 525275 | 226355 | TL252263 | Yes |
| SG1 4LB | 51.922253 | -0.177516 | 525427 | 226428 | TL254264 | Yes |
| SG1 4LD | 51.922528 | -0.177839 | 525404 | 226458 | TL254264 | Yes |
| SG1 4LE | 51.921985 | -0.178763 | 525342 | 226396 | TL253263 | Yes |
| SG1 4LF | 51.924604 | -0.184154 | 524964 | 226678 | TL249266 | Yes |
| SG1 4LG | 51.924709 | -0.18047 | 525217 | 226696 | TL252266 | Yes |
| SG1 4LH | 51.924708 | -0.185052 | 524902 | 226688 | TL249266 | Yes |
| SG1 4LJ | 51.924523 | -0.182994 | 525044 | 226671 | TL250266 | Yes |
| SG1 4LL | 51.924197 | -0.186919 | 524775 | 226628 | TL247266 | Yes |
| SG1 4LN | 51.924683 | -0.186943 | 524772 | 226682 | TL247266 | Yes |
| SG1 4LP | 51.925839 | -0.186693 | 524786 | 226811 | TL247268 | Yes |
| SG1 4LQ | 51.924684 | -0.181766 | 525128 | 226691 | TL251266 | Yes |
| SG1 4LR | 51.926583 | -0.186547 | 524794 | 226894 | TL247268 | Yes |
| SG1 4LS | 51.92652 | -0.185342 | 524877 | 226889 | TL248268 | Yes |
| SG1 4LT | 51.926992 | -0.183883 | 524976 | 226944 | TL249269 | Yes |
| SG1 4LU | 51.926812 | -0.18328 | 525018 | 226925 | TL250269 | Yes |
| SG1 4LW | 51.925356 | -0.186873 | 524775 | 226757 | TL247267 | Yes |
| SG1 4LX | 51.926757 | -0.18206 | 525102 | 226921 | TL251269 | Yes |
| SG1 4LY | 51.924578 | -0.185406 | 524878 | 226673 | TL248266 | Yes |
| SG1 4LZ | 51.924846 | -0.185875 | 524845 | 226702 | TL248267 | Yes |
| SG1 4NA | 51.925336 | -0.185565 | 524865 | 226757 | TL248267 | Yes |
| SG1 4NB | 51.925598 | -0.185045 | 524900 | 226787 | TL248267 | Yes |
| SG1 4ND | 51.925679 | -0.18446 | 524940 | 226797 | TL249267 | Yes |
| SG1 4NE | 51.925747 | -0.183614 | 524998 | 226806 | TL249268 | Yes |
| SG1 4NF | 51.925534 | -0.182662 | 525064 | 226784 | TL250267 | Yes |
| SG1 4NG | 51.925465 | -0.181676 | 525132 | 226778 | TL251267 | Yes |
| SG1 4NH | 51.925535 | -0.17923 | 525300 | 226790 | TL252267 | Yes |
| SG1 4NJ | 51.925392 | -0.177563 | 525415 | 226777 | TL254267 | Yes |
| SG1 4NL | 51.925404 | -0.176545 | 525485 | 226780 | TL254267 | Yes |
| SG1 4NN | 51.922651 | -0.17302 | 525735 | 226480 | TL257264 | Yes |
| SG1 4NP | 51.922978 | -0.172033 | 525802 | 226518 | TL258265 | Yes |
| SG1 4NQ | 51.925546 | -0.180538 | 525210 | 226789 | TL252267 | Yes |
| SG1 4NR | 51.922111 | -0.171777 | 525822 | 226422 | TL258264 | Yes |
| SG1 4NS | 51.926092 | -0.176851 | 525462 | 226856 | TL254268 | Yes |
| SG1 4NT | 51.926243 | -0.177921 | 525388 | 226871 | TL253268 | Yes |
| SG1 4NU | 51.921714 | -0.1746 | 525629 | 226373 | TL256263 | Yes |
| SG1 4NW | 51.92346 | -0.172958 | 525737 | 226570 | TL257265 | Yes |
| SG1 4NX | 51.9218 | -0.173753 | 525687 | 226384 | TL256263 | Yes |
| SG1 4NY | 51.922274 | -0.174199 | 525655 | 226436 | TL256264 | Yes |
| SG1 4NZ | 51.926218 | -0.176308 | 525499 | 226871 | TL254268 | Yes |
| SG1 4PA | 51.922544 | -0.176544 | 525493 | 226462 | TL254264 | Yes |
| SG1 4PB | 51.922136 | -0.175179 | 525588 | 226419 | TL255264 | Yes |
| SG1 4PD | 51.921581 | -0.175885 | 525541 | 226356 | TL255263 | Yes |
| SG1 4PE | 51.926747 | -0.176199 | 525505 | 226930 | TL255269 | Yes |
| SG1 4PF | 51.926936 | -0.177951 | 525384 | 226948 | TL253269 | Yes |
| SG1 4PG | 51.923456 | -0.174471 | 525633 | 226567 | TL256265 | Yes |
| SG1 4PH | 51.923068 | -0.17613 | 525520 | 226521 | TL255265 | Yes |
| SG1 4PJ | 51.926976 | -0.174125 | 525647 | 226959 | TL256269 | Yes |
| SG1 4PL | 51.926186 | -0.1742 | 525644 | 226871 | TL256268 | Yes |
| SG1 4PN | 51.924889 | -0.174093 | 525655 | 226727 | TL256267 | Yes |
| SG1 4PP | 51.925285 | -0.174135 | 525651 | 226771 | TL256267 | Yes |
| SG1 4PQ | 51.922737 | -0.1745 | 525633 | 226487 | TL256264 | Yes |
| SG1 4PR | 51.925886 | -0.174562 | 525620 | 226837 | TL256268 | Yes |
| SG1 4PS | 51.922825 | -0.172039 | 525802 | 226501 | TL258265 | No |
| SG1 4PT | 51.928026 | -0.17398 | 525654 | 227076 | TL256270 | Yes |
| SG1 4PU | 51.921904 | -0.170622 | 525902 | 226401 | TL259264 | No |
| SG1 4PW | 51.924252 | -0.174773 | 525610 | 226655 | TL256266 | Yes |
| SG1 4PX | 51.923701 | -0.170549 | 525902 | 226601 | TL259266 | No |
| SG1 4PY | 51.925498 | -0.170476 | 525902 | 226801 | TL259268 | No |
| SG1 4PZ | 51.923597 | -0.187642 | 524727 | 226560 | TL247265 | No |
| SG1 4QA | 51.924293 | -0.165216 | 526267 | 226676 | TL262266 | Yes |
| SG1 4QB | 51.924593 | -0.170076 | 525932 | 226701 | TL259267 | Yes |
| SG1 4QD | 51.923597 | -0.187642 | 524727 | 226560 | TL247265 | No |
| SG1 4QE | 51.9255 | -0.20448 | 523564 | 226743 | TL235267 | Yes |
| SG1 4QF | 51.92592 | -0.169833 | 525945 | 226849 | TL259268 | Yes |
| SG1 4QG | 51.92521 | -0.165237 | 526263 | 226778 | TL262267 | Yes |
| SG1 4QH | 51.924628 | -0.183368 | 525018 | 226682 | TL250266 | Yes |
| SG1 4QJ | 51.924563 | -0.167532 | 526107 | 226702 | TL261267 | Yes |
| SG1 4QL | 51.926432 | -0.165769 | 526223 | 226913 | TL262269 | Yes |
| SG1 4QN | 51.922545 | -0.170785 | 525889 | 226472 | TL258264 | No |
| SG1 4QP | 51.925498 | -0.170476 | 525902 | 226801 | TL259268 | No |
| SG1 4QQ | 51.924667 | -0.174873 | 525602 | 226701 | TL256267 | No |
| SG1 4QR | 51.927333 | -0.168147 | 526057 | 227009 | TL260270 | Yes |
| SG1 4QS | 51.92758 | -0.171322 | 525838 | 227031 | TL258270 | Yes |
| SG1 4QT | 51.926949 | -0.170082 | 525925 | 226963 | TL259269 | Yes |
| SG1 4QU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 4QW | 51.9246 | -0.170512 | 525902 | 226701 | TL259267 | No |
| SG1 4QX | 51.926198 | -0.165735 | 526226 | 226887 | TL262268 | Yes |
| SG1 4QY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 4QZ | 51.926737 | -0.180199 | 525230 | 226922 | TL252269 | Yes |
| SG1 4RA | 51.92222 | -0.16837 | 526056 | 226440 | TL260264 | Yes |
| SG1 4RB | 51.922182 | -0.169404 | 525985 | 226434 | TL259264 | Yes |
| SG1 4RD | 51.921972 | -0.215527 | 522814 | 226332 | TL228263 | Yes |
| SG1 4RE | 51.921621 | -0.216138 | 522773 | 226292 | TL227262 | Yes |
| SG1 4RF | 51.921173 | -0.21681 | 522728 | 226241 | TL227262 | Yes |
| SG1 4RG | 51.921075 | -0.21629 | 522764 | 226231 | TL227262 | Yes |
| SG1 4RH | 51.921992 | -0.169339 | 525990 | 226413 | TL259264 | Yes |
| SG1 4RJ | 51.921418 | -0.218167 | 522634 | 226266 | TL226262 | Yes |
| SG1 4RL | 51.922105 | -0.216598 | 522740 | 226345 | TL227263 | Yes |
| SG1 4RN | 51.921931 | -0.21758 | 522673 | 226324 | TL226263 | Yes |
| SG1 4RP | 51.922631 | -0.218701 | 522594 | 226400 | TL225263 | Yes |
| SG1 4RQ | 51.92136 | -0.215537 | 522815 | 226264 | TL228262 | Yes |
| SG1 4RR | 51.923376 | -0.218628 | 522597 | 226483 | TL225264 | Yes |
| SG1 4RS | 51.922609 | -0.217218 | 522696 | 226400 | TL226263 | Yes |
| SG1 4RT | 51.924246 | -0.211889 | 523058 | 226591 | TL230265 | Yes |
| SG1 4RU | 51.921712 | -0.192604 | 524391 | 226342 | TL243263 | Yes |
| SG1 4RW | 51.922308 | -0.218714 | 522594 | 226364 | TL225263 | Yes |
| SG1 4RX | 51.923476 | -0.191501 | 524462 | 226540 | TL244265 | Yes |
| SG1 4RY | 51.923021 | -0.220067 | 522499 | 226441 | TL224264 | Yes |
| SG1 4RZ | 51.92266 | -0.220038 | 522502 | 226401 | TL225264 | No |
| SG1 4SA | 51.922251 | -0.205511 | 523502 | 226380 | TL235263 | Yes |
| SG1 4SB | 51.922677 | -0.203923 | 523610 | 226430 | TL236264 | Yes |
| SG1 4SD | 51.923666 | -0.202749 | 523688 | 226542 | TL236265 | Yes |
| SG1 4SE | 51.922617 | -0.217131 | 522702 | 226401 | TL227264 | No |
| SG1 4SF | 51.92606 | -0.205839 | 523469 | 226803 | TL234268 | Yes |
| SG1 4SG | 51.923597 | -0.187642 | 524727 | 226560 | TL247265 | No |
| SG1 4SH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 4SJ | 51.922617 | -0.217131 | 522702 | 226401 | TL227264 | No |
| SG1 4SL | 51.923597 | -0.187642 | 524727 | 226560 | TL247265 | No |
| SG1 4SN | 51.922617 | -0.217131 | 522702 | 226401 | TL227264 | No |
| SG1 4SP | 51.926103 | -0.204528 | 523559 | 226810 | TL235268 | Yes |
| SG1 4SQ | 51.922617 | -0.217131 | 522702 | 226401 | TL227264 | No |