This page provides postcode data for the North Hertfordshire, unparished area parish. North Hertfordshire, unparished area contains approximately 32,585 households with a population of about 76,192 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| SG4 0RG | 51.959902 | -0.259441 | 519693 | 230477 | TL196304 | Yes |
| SG4 0RH | 51.952326 | -0.258512 | 519777 | 229636 | TL197296 | Yes |
| SG4 0RJ | 51.961437 | -0.256834 | 519868 | 230652 | TL198306 | Yes |
| SG4 0RL | 51.963809 | -0.266465 | 519200 | 230900 | TL192308 | No |
| SG4 0RN | 51.966484 | -0.264907 | 519300 | 231200 | TL192312 | No |
| SG4 0RQ | 51.960808 | -0.258129 | 519781 | 230580 | TL197305 | Yes |
| SG4 0RS | 51.950496 | -0.25573 | 519973 | 229437 | TL199294 | Yes |
| SG4 0RT | 51.956153 | -0.256428 | 519910 | 230065 | TL199300 | No |
| SG4 0RU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0RW | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0RY | 51.967936 | -0.263977 | 519360 | 231363 | TL193313 | Yes |
| SG4 0RZ | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0SA | 51.963089 | -0.270089 | 518953 | 230814 | TL189308 | Yes |
| SG4 0SB | 51.964174 | -0.269901 | 518963 | 230935 | TL189309 | Yes |
| SG4 0SD | 51.962076 | -0.270899 | 518900 | 230700 | TL188306 | No |
| SG4 0SE | 51.963569 | -0.268469 | 519063 | 230870 | TL190308 | Yes |
| SG4 0SF | 51.962237 | -0.268404 | 519071 | 230722 | TL190307 | No |
| SG4 0SH | 51.963852 | -0.269375 | 519000 | 230900 | TL189308 | No |
| SG4 0SJ | 51.962076 | -0.270899 | 518900 | 230700 | TL188306 | No |
| SG4 0SL | 51.965738 | -0.271096 | 518877 | 231107 | TL188311 | Yes |
| SG4 0SN | 51.965224 | -0.270327 | 518931 | 231051 | TL189310 | No |
| SG4 0SP | 51.962953 | -0.26941 | 519000 | 230800 | TL189307 | No |
| SG4 0SQ | 51.962559 | -0.268901 | 519036 | 230757 | TL190307 | Yes |
| SG4 0SR | 51.962076 | -0.270899 | 518900 | 230700 | TL188306 | No |
| SG4 0ST | 51.963683 | -0.268246 | 519078 | 230883 | TL190308 | No |
| SG4 0SX | 51.968355 | -0.268051 | 519079 | 231403 | TL190314 | No |
| SG4 0SZ | 51.968036 | -0.264046 | 519355 | 231374 | TL193313 | No |
| SG4 0TA | 51.965893 | -0.263852 | 519374 | 231136 | TL193311 | No |
| SG4 0TD | 51.964665 | -0.263521 | 519400 | 231000 | TL194310 | No |
| SG4 0TF | 51.963766 | -0.263556 | 519400 | 230900 | TL193308 | No |
| SG4 0TG | 51.964665 | -0.263521 | 519400 | 231000 | TL194310 | No |
| SG4 0TH | 51.965564 | -0.263486 | 519400 | 231100 | TL194311 | No |
| SG4 0TJ | 51.965853 | -0.262995 | 519433 | 231133 | TL194311 | Yes |
| SG4 0TL | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0TN | 51.962911 | -0.2665 | 519200 | 230800 | TL192308 | No |
| SG4 0TP | 51.966314 | -0.263795 | 519377 | 231183 | TL193311 | Yes |
| SG4 0TQ | 51.966396 | -0.26325 | 519414 | 231193 | TL194311 | No |
| SG4 0TR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0TS | 51.96213 | -0.264769 | 519321 | 230716 | TL193307 | Yes |
| SG4 0TT | 51.965459 | -0.261889 | 519510 | 231091 | TL195310 | No |
| SG4 0TU | 51.963809 | -0.266465 | 519200 | 230900 | TL192308 | No |
| SG4 0TW | 51.964385 | -0.265311 | 519278 | 230966 | TL192309 | Yes |
| SG4 0TX | 51.962889 | -0.265045 | 519300 | 230800 | TL193307 | No |
| SG4 0TY | 51.967688 | -0.266054 | 519218 | 231332 | TL192313 | Yes |
| SG4 0TZ | 51.96583 | -0.265718 | 519246 | 231126 | TL192311 | Yes |
| SG4 0UB | 51.96267 | -0.263569 | 519402 | 230778 | TL194307 | Yes |
| SG4 0UD | 51.963626 | -0.263809 | 519383 | 230884 | TL193308 | Yes |
| SG4 0UE | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0UF | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0UG | 51.966484 | -0.264907 | 519300 | 231200 | TL192312 | No |
| SG4 0UH | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0UJ | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0UL | 51.966484 | -0.264907 | 519300 | 231200 | TL192312 | No |
| SG4 0UN | 51.961092 | -0.265115 | 519300 | 230600 | TL192306 | No |
| SG4 0UP | 51.962911 | -0.2665 | 519200 | 230800 | TL192308 | No |
| SG4 0UQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0UR | 51.963788 | -0.265011 | 519300 | 230900 | TL192309 | No |
| SG4 0UT | 51.964686 | -0.264976 | 519300 | 231000 | TL192309 | No |
| SG4 0UX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0UY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0UZ | 51.963566 | -0.265896 | 519240 | 230874 | TL192308 | Yes |
| SG4 0WN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0WZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XA | 51.947397 | -0.251093 | 520300 | 229100 | TL202291 | No |
| SG4 0XB | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XE | 51.966 | -0.265056 | 519291 | 231146 | TL192311 | No |
| SG4 0XF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XJ | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0XL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XN | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0XQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XR | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0XS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0XT | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0XU | 51.955812 | -0.25711 | 519864 | 230026 | TL198300 | No |
| SG4 0XY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0YQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0YR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0YS | 51.955812 | -0.25711 | 519864 | 230026 | TL198300 | No |
| SG4 0YT | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0YU | 51.956153 | -0.256428 | 519910 | 230065 | TL199300 | No |
| SG4 0YX | 51.956153 | -0.256442 | 519909 | 230065 | TL199300 | No |
| SG4 0YY | 51.956153 | -0.256428 | 519910 | 230065 | TL199300 | No |
| SG4 0YZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZA | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZH | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 0ZR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7PY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7TL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WA | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WE | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WW | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7WZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7XE | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7XG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7XQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7XT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7XU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7ZN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7ZQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7ZW | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 7ZX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8BF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8BH | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8FJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8FR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8FT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8FU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GB | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GE | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8GT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8QZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8RQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8SG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8SQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WB | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WE | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8WZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8ZJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8ZN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8ZQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8ZR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 8ZT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9AA | 51.947929 | -0.273757 | 518741 | 229122 | TL187291 | Yes |
| SG4 9AB | 51.946187 | -0.274644 | 518685 | 228927 | TL186289 | Yes |
| SG4 9AD | 51.944078 | -0.275554 | 518628 | 228691 | TL186286 | Yes |
| SG4 9AE | 51.943646 | -0.276139 | 518589 | 228642 | TL185286 | Yes |
| SG4 9AF | 51.94452 | -0.274432 | 518704 | 228742 | TL187287 | Yes |
| SG4 9AG | 51.945832 | -0.272397 | 518840 | 228891 | TL188288 | Yes |
| SG4 9AH | 51.944062 | -0.277426 | 518499 | 228686 | TL184286 | Yes |
| SG4 9AJ | 51.942418 | -0.276296 | 518581 | 228505 | TL185285 | Yes |
| SG4 9AL | 51.941794 | -0.276655 | 518558 | 228435 | TL185284 | Yes |
| SG4 9AN | 51.940096 | -0.276275 | 518589 | 228247 | TL185282 | Yes |
| SG4 9AP | 51.939495 | -0.274982 | 518679 | 228182 | TL186281 | Yes |
| SG4 9AQ | 51.94645 | -0.272975 | 518799 | 228959 | TL187289 | Yes |
| SG4 9AR | 51.938042 | -0.275379 | 518656 | 228020 | TL186280 | Yes |
| SG4 9AS | 51.938022 | -0.274056 | 518747 | 228020 | TL187280 | Yes |
| SG4 9AT | 51.936475 | -0.275236 | 518670 | 227846 | TL186278 | Yes |
| SG4 9AU | 51.935931 | -0.274297 | 518736 | 227787 | TL187277 | Yes |
| SG4 9AW | 51.938812 | -0.276426 | 518582 | 228104 | TL185281 | Yes |
| SG4 9AX | 51.936757 | -0.273458 | 518791 | 227880 | TL187278 | Yes |
| SG4 9AY | 51.937133 | -0.272286 | 518871 | 227924 | TL188279 | Yes |
| SG4 9BF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9BH | 51.93677 | -0.276941 | 518552 | 227876 | TL185278 | Yes |
| SG4 9BJ | 51.937919 | -0.278672 | 518430 | 228001 | TL184280 | Yes |
| SG4 9BL | 51.937989 | -0.276676 | 518567 | 228012 | TL185280 | Yes |
| SG4 9BN | 51.939558 | -0.272702 | 518836 | 228193 | TL188281 | Yes |
| SG4 9BP | 51.944516 | -0.276018 | 518595 | 228739 | TL185287 | Yes |
| SG4 9BQ | 51.93547 | -0.275821 | 518632 | 227733 | TL186277 | Yes |
| SG4 9BS | 51.943955 | -0.276345 | 518574 | 228676 | TL185286 | Yes |
| SG4 9BT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9BU | 51.946137 | -0.274175 | 518717 | 228922 | TL187289 | No |
| SG4 9BW | 51.94445 | -0.275133 | 518656 | 228733 | TL186287 | Yes |
| SG4 9BY | 51.946698 | -0.274459 | 518696 | 228984 | TL186289 | No |
| SG4 9BZ | 51.946714 | -0.27442 | 518699 | 228986 | TL186289 | Yes |
| SG4 9DA | 51.942002 | -0.27562 | 518629 | 228460 | TL186284 | Yes |
| SG4 9DB | 51.942681 | -0.275791 | 518615 | 228535 | TL186285 | No |
| SG4 9DD | 51.942108 | -0.274722 | 518690 | 228473 | TL186284 | Yes |
| SG4 9DE | 51.941631 | -0.273044 | 518807 | 228423 | TL188284 | Yes |
| SG4 9DF | 51.939216 | -0.266424 | 519268 | 228165 | TL192281 | No |
| SG4 9DG | 51.940773 | -0.268524 | 519120 | 228335 | TL191283 | Yes |
| SG4 9DH | 51.941131 | -0.273878 | 518751 | 228366 | TL187283 | Yes |
| SG4 9DJ | 51.94093 | -0.272905 | 518818 | 228345 | TL188283 | Yes |
| SG4 9DL | 51.940429 | -0.272502 | 518847 | 228290 | TL188282 | Yes |
| SG4 9DN | 51.940787 | -0.271776 | 518896 | 228331 | TL188283 | Yes |
| SG4 9DP | 51.939716 | -0.271198 | 518939 | 228213 | TL189282 | Yes |
| SG4 9DQ | 51.939948 | -0.267421 | 519198 | 228245 | TL191282 | Yes |
| SG4 9DR | 51.94017 | -0.270278 | 519001 | 228265 | TL190282 | Yes |
| SG4 9DS | 51.940993 | -0.270581 | 518978 | 228356 | TL189283 | Yes |