NP26 3FQ is located in the Magor East with Undy electoral ward, within the unitary authority of Monmouthshire and the Welsh Parliamentary constituency of Newport East. The Local Health Board is Aneurin Bevan University and the police force is Gwent. This postcode has been in use since December 2019.


| Easting | 343845 |
| Northing | 187555 |
| Latitude | 51.584041 |
| Longitude | -2.811876 |
| Country | Wales |
| Postcode District | NP26 |
| Ward | Magor East With Undy |
|---|---|
| Constituency | Newport East |
14, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2026 3 JUL £450,000 |
2025 29 OCT £382,500 |
13, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2022 16 DEC £449,995 |
15, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2022 16 DEC £484,995 |
8, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2021 26 MAR £338,995 |
14, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2021 12 FEB £402,000 |
9, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2020 4 DEC £338,995 |
51, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2020 27 NOV £469,995 |
53, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2020 13 NOV £464,995 |
6, SIR HOWEL CRESCENT, UNDY, CALDICOT, NP26 3FQ 2020 14 AUG £289,995 |
| Rockfield (Elms Hill) | Undy | 136m |
| Rockfield (Elms Hill) | Undy | 143m |
| Tudor Court (Main Road) | Undy | 643m |
| Tudor Court (Main Road) | Undy | 648m |
| Vinegar Hill (Pennyfarthing Lane) | Magor | 750m |
| Severn Tunnel Junction Station | 2.4km |
| Caldicot Station | 3.6km |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Station Road Rogiet | 16:00 | 07:30 | 2,184m |
| Magor Post Office | 18:00 | 12:00 | 3,225m |
| Redwick | 16:00 | 08:45 | 4,287m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for NP26 3FQ:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL2 | East Wales |
| ITL 3 Code | Name |
| TLL21 | Monmouthshire and Newport |
| LAU 1 Code | Name |
| W06000021 | Monmouthshire |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for NP26 3FQ:
| Code | Name | |
|---|---|---|
| OA | W00008285 | |
| LSOA | W01001591 | Monmouthshire 011E |
| MSOA | W02000346 | Monmouthshire 011 |
| NP26 3FB | Rockfield Grove | 133m |
| NP26 3QD | Pembroke Close | 146m |
| NP26 3EL | 165m | |
| NP26 3PZ | Pembroke Court | 191m |
| NP26 3TD | The Paddocks | 213m |
| NP26 3FD | Rockfield Way | 224m |
| NP26 3TE | Old Barn Court | 232m |
| NP26 3PU | St Stephens Place | 248m |
| NP26 3FH | Rockfield Crescent | 273m |
| NP26 3FG | Rockfield Rise | 280m |