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 9HE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9HF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9HQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9HR | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9HT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9HW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9JD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9JH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JP | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JS | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9JU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9JY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9JZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9LA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9LD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9LE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9LG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LL | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9LN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9LP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LW | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LY | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9LZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9ND | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NL | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9NN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9NU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NW | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9NY | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9NZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9PA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9PD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PL | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9PT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PW | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9PX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PY | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9PZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9QE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9QG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9QJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9QL | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QW | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QY | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9QZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9RF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9RH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RJ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RL | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9RP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RR | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RT | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9RU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9RX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RY | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9RZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9SA | 51.901184 | -0.203211 | 523718 | 224041 | TL237240 | Yes |
| SG1 9SB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9SD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9SE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9SF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9SG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9SH | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9ZZ | 51.901184 | -0.203211 | 523718 | 224041 | TL237240 | Yes |
| SG10 6AA | 51.850669 | 0.062554 | 542160 | 218908 | TL421189 | Yes |
| SG10 6AB | 51.847439 | 0.063175 | 542213 | 218550 | TL422185 | Yes |
| SG10 6AD | 51.851768 | 0.05212 | 541438 | 219010 | TL414190 | Yes |
| SG10 6AE | 51.844468 | 0.055127 | 541668 | 218204 | TL416182 | Yes |
| SG10 6AF | 51.845442 | 0.053444 | 541549 | 218309 | TL415183 | Yes |
| SG10 6AG | 51.847431 | 0.038334 | 540502 | 218501 | TL405185 | No |
| SG10 6AH | 51.847634 | 0.054604 | 541622 | 218555 | TL416185 | Yes |
| SG10 6AJ | 51.847286 | 0.068773 | 542599 | 218544 | TL425185 | Yes |
| SG10 6AL | 51.84666 | 0.069629 | 542660 | 218476 | TL426184 | Yes |
| SG10 6AN | 51.846874 | 0.070728 | 542735 | 218502 | TL427185 | Yes |
| SG10 6AP | 51.844869 | 0.069213 | 542637 | 218276 | TL426182 | Yes |
| SG10 6AQ | 51.847826 | 0.038874 | 540538 | 218546 | TL405185 | Yes |
| SG10 6AR | 51.845874 | 0.068316 | 542572 | 218386 | TL425183 | Yes |
| SG10 6AS | 51.84576 | 0.067091 | 542488 | 218371 | TL424183 | Yes |
| SG10 6AT | 51.842599 | 0.069908 | 542692 | 218025 | TL426180 | Yes |
| SG10 6AU | 51.844718 | 0.062935 | 542205 | 218247 | TL422182 | Yes |
| SG10 6AW | 51.847585 | 0.072735 | 542871 | 218585 | TL428185 | Yes |
| SG10 6AX | 51.843449 | 0.067101 | 542496 | 218114 | TL424181 | Yes |
| SG10 6AY | 51.844013 | 0.065167 | 542361 | 218173 | TL423181 | Yes |
| SG10 6AZ | 51.833811 | 0.064947 | 542378 | 217038 | TL423170 | Yes |
| SG10 6BA | 51.840215 | 0.061292 | 542106 | 217743 | TL421177 | Yes |
| SG10 6BB | 51.839138 | 0.056002 | 541745 | 217613 | TL417176 | Yes |
| SG10 6BD | 51.836174 | 0.061485 | 542132 | 217294 | TL421172 | Yes |
| SG10 6BE | 51.844452 | 0.064273 | 542298 | 218220 | TL422182 | Yes |
| SG10 6BF | 51.849598 | 0.064145 | 542273 | 218792 | TL422187 | Yes |
| SG10 6BG | 51.845064 | 0.063691 | 542256 | 218287 | TL422182 | Yes |
| SG10 6BH | 51.844511 | 0.067048 | 542489 | 218232 | TL424182 | Yes |
| SG10 6BJ | 51.834569 | 0.055054 | 541694 | 217103 | TL416171 | Yes |
| SG10 6BL | 51.838041 | 0.061134 | 542102 | 217501 | TL421175 | No |
| SG10 6BN | 51.843657 | 0.06396 | 542279 | 218131 | TL422181 | Yes |
| SG10 6BP | 51.853406 | 0.072074 | 542807 | 219231 | TL428192 | Yes |
| SG10 6BQ | 51.84504 | 0.066623 | 542458 | 218290 | TL424182 | Yes |
| SG10 6BS | 51.853246 | 0.071442 | 542764 | 219212 | TL427192 | Yes |
| SG10 6BT | 51.852543 | 0.071526 | 542772 | 219134 | TL427191 | Yes |
| SG10 6BU | 51.854983 | 0.071914 | 542791 | 219406 | TL427194 | Yes |
| SG10 6BW | 51.831702 | 0.09115 | 544190 | 216855 | TL441168 | Yes |
| SG10 6BX | 51.855648 | 0.071886 | 542787 | 219480 | TL427194 | Yes |
| SG10 6BY | 51.856469 | 0.072287 | 542812 | 219572 | TL428195 | Yes |
| SG10 6BZ | 51.855549 | 0.072448 | 542826 | 219470 | TL428194 | Yes |
| SG10 6DA | 51.856383 | 0.072574 | 542832 | 219563 | TL428195 | Yes |
| SG10 6DB | 51.857789 | 0.072377 | 542814 | 219719 | TL428197 | Yes |
| SG10 6DD | 51.857457 | 0.072347 | 542813 | 219682 | TL428196 | Yes |
| SG10 6DE | 51.848734 | 0.070828 | 542736 | 218709 | TL427187 | Yes |
| SG10 6DF | 51.847791 | 0.070262 | 542700 | 218603 | TL426186 | Yes |
| SG10 6DG | 51.853798 | 0.073805 | 542925 | 219278 | TL429192 | Yes |
| SG10 6DH | 51.856616 | 0.074661 | 542975 | 219593 | TL429195 | Yes |
| SG10 6DJ | 51.858529 | 0.072237 | 542802 | 219801 | TL428198 | No |
| SG10 6DL | 51.850763 | 0.071546 | 542779 | 218936 | TL427189 | Yes |
| SG10 6DN | 51.849569 | 0.070373 | 542702 | 218801 | TL427188 | No |
| SG10 6DP | 51.848486 | 0.07314 | 542896 | 218686 | TL428186 | Yes |
| SG10 6DQ | 51.852725 | 0.072434 | 542834 | 219156 | TL428191 | Yes |
| SG10 6DR | 51.847695 | 0.074642 | 543002 | 218601 | TL430186 | No |
| SG10 6DS | 51.847318 | 0.077166 | 543177 | 218564 | TL431185 | Yes |
| SG10 6DT | 51.846076 | 0.078778 | 543292 | 218429 | TL432184 | Yes |
| SG10 6DU | 51.842707 | 0.08369 | 543641 | 218064 | TL436180 | Yes |
| SG10 6DW | 51.848138 | 0.071977 | 542817 | 218645 | TL428186 | Yes |
| SG10 6DX | 51.840317 | 0.085568 | 543778 | 217802 | TL437178 | Yes |
| SG10 6DY | 51.840231 | 0.086348 | 543832 | 217794 | TL438177 | Yes |
| SG10 6DZ | 51.841306 | 0.084075 | 543672 | 217909 | TL436179 | Yes |
| SG10 6EA | 51.839484 | 0.091989 | 544223 | 217722 | TL442177 | Yes |