Postcodes in Monmouthshire page 13 Unitary Authority

  1. All administrative areas

This page provides postcode data for the Monmouthshire UK Unitary Authority.

In 2021, Monmouthshire contained approximately 40,900 households with a population of about 93,000

In 2011, Monmouthshire contained approximately 38,214 households with a population of about 91,288

Wards in this Unitary Authority
Bulwark and Thornwell ,   Caerwent ,   Caldicot Castle ,   Caldicot Cross ,   Cantref ,   Chepstow Castle and Larkfield ,   Croesonen ,   Crucorney ,   Devauden ,   Dewstow ,   Drybridge ,   Gobion Fawr ,   Goetre Fawr ,   Grofield ,   Lansdown ,   Llanbadoc and Usk ,   Llanelly ,   Llanfoist Fawr and Govilon ,   Llangybi Fawr ,   Llantilio Crossenny ,   Magor East with Undy ,   Magor West ,   Mardy ,   Mitchel Troy and Trellech United ,   Mount Pleasant ,   Osbaston ,   Overmonnow ,   Park ,   Pen Y Fal ,   Portskewett ,   Raglan ,   Rogiet ,   Severn ,   Shirenewton ,   St Arvans ,   St Kingsmark ,   Town ,   West End ,   Wyesham
Parishes in this Unitary Authority
Abergavenny ,   Caerwent ,   Caldicot ,   Chepstow ,   Crucorney ,   Devauden ,   Gobion Fawr ,   Goetre Fawr ,   Grosmont ,   Llanarth ,   Llanbadoc ,   Llanelly ,   Llanfoist Fawr ,   Llangybi ,   Llantilio Pertholey ,   Llantrisant Fawr ,   Magor with Undy ,   Mathern ,   Mitchel Troy ,   Monmouth ,   Portskewett ,   Raglan ,   Rogiet ,   Shirenewton ,   Skenfrith ,   St. Arvans ,   Trellech United ,   Usk ,   Whitecastle ,   Wye Valley
Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

Postcode Ward Latitude Longitude Easting Northing Grid ref
NP16 7YY Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 7ZS Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 7ZX Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AB Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AE Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AH Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AL Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AP Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AQ Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9AR Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AS Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AT Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AU Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AW Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AX Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AY Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9AZ Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BA Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BB Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BD Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BE Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BF Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BG Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BH Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BJ Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BL Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BN Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BP Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BQ Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BR Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BS Chepstow Castle and Larkfield 51.640738 -2.672939 353529 193763 ST535937
NP16 9BT Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9BU Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9BW Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9BX Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9BY Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9BZ Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DA Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DB Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DD Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DE Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DF Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DG Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DH Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DJ Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DL Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP16 9DN Chepstow Castle and Larkfield 51.64074 -2.672945 353529 193763 ST535937
NP18 1DD Llangybi Fawr 51.658696 -2.969836 333011 195991 ST330959
NP18 1HP Llangybi Fawr 51.652398 -2.959114 333743 195281 ST337952
NP18 1HS Llangybi Fawr 51.636075 -2.959787 333673 193466 ST336934
NP18 1HT Llangybi Fawr 51.637922 -2.959407 333702 193671 ST337936
NP18 1HU Llangybi Fawr 51.640595 -2.968929 333047 193977 ST330939
NP18 1HW Llangybi Fawr 51.647523 -2.967004 333190 194746 ST331947
NP18 1HX Llangybi Fawr 51.655102 -2.961614 333574 195584 ST335955
NP18 1HY Llangybi Fawr 51.654598 -2.95535 334007 195522 ST340955
NP18 1HZ Llangybi Fawr 51.655115 -2.954545 334063 195579 ST340955
NP18 1JA Llangybi Fawr 51.655497 -2.956439 333933 195623 ST339956
NP18 1LR Llangybi Fawr 51.63307 -2.941142 334959 193115 ST349931
NP18 1LS Llangybi Fawr 51.648785 -2.940312 335039 194862 ST350948
NP18 1LT Llangybi Fawr 51.632591 -2.934645 335408 193056 ST354930
NP18 1LU Llangybi Fawr 51.629342 -2.921093 336341 192683 ST363926
NP18 1LW Llangybi Fawr 51.642627 -2.92973 335762 194168 ST357941
NP18 1NU Llangybi Fawr 51.639753 -2.946203 334618 193863 ST346938
NP23 4BU Llanelly 51.796683 -3.154609 320473 211523 SO204115
NP23 4YA Llanelly 51.824039 -3.092517 324800 214500 SO248144
NP25 3AB Osbaston 51.826833 -2.713655 350914 214487 SO509144
NP25 3AD Wyesham 51.809882 -2.709529 351180 212599 SO511125
NP25 3AE Town 51.81392 -2.711742 351032 213050 SO510130
NP25 3AF Wyesham 51.809891 -2.709558 351178 212600 SO511125
NP25 3AG Wyesham 51.813584 -2.703265 351616 213007 SO516130
NP25 3AR Osbaston 51.824238 -2.723364 350242 214205 SO502142
NP25 3AS Osbaston 51.823616 -2.723659 350221 214136 SO502141
NP25 3AT Osbaston 51.823315 -2.7229 350273 214102 SO502141
NP25 3AU Osbaston 51.823283 -2.723712 350217 214099 SO502140
NP25 3AX Osbaston 51.817993 -2.716246 350726 213506 SO507135
NP25 3AY Osbaston 51.820205 -2.721181 350388 213755 SO503137
NP25 3AZ Osbaston 51.820506 -2.721926 350337 213789 SO503137
NP25 3BD Osbaston 51.827357 -2.72057 350438 214550 SO504145
NP25 3BE Osbaston 51.826443 -2.721455 350376 214449 SO503144
NP25 3BF Osbaston 51.826913 -2.719663 350500 214500 SO505145
NP25 3BG Osbaston 51.827172 -2.718521 350579 214528 SO505145
NP25 3BQ Town 51.812028 -2.71448 350841 212841 SO508128
NP25 3BR Town 51.813027 -2.715152 350796 212953 SO507129
NP25 3BS Town 51.8127 -2.716405 350709 212917 SO507129
NP25 3BT Town 51.812398 -2.715113 350798 212883 SO507128
NP25 3BU Town 51.812818 -2.714652 350830 212929 SO508129
NP25 3BW Town 51.812903 -2.711915 351019 212937 SO510129
NP25 3BX Town 51.812621 -2.714634 350831 212907 SO508129
NP25 3BY Town 51.813168 -2.712644 350969 212967 SO509129
NP25 3BZ Town 51.812845 -2.713245 350927 212931 SO509129
NP25 3DA Town 51.813028 -2.712682 350966 212951 SO509129
NP25 3DB Town 51.812465 -2.713558 350905 212889 SO509128
NP25 3DD Town 51.812075 -2.712769 350959 212845 SO509128
NP25 3DE Town 51.811761 -2.712546 350974 212810 SO509128
NP25 3DF Town 51.811848 -2.713012 350942 212820 SO509128
NP25 3DG Town 51.811235 -2.714151 350863 212753 SO508127
NP25 3DH Town 51.81067 -2.713153 350931 212689 SO509126
NP25 3DJ Town 51.813526 -2.710674 351105 213005 SO511130
NP25 3DL Town 51.812435 -2.711208 351067 212884 SO510128
NP25 3DN Town 51.813259 -2.710963 351085 212976 SO510129
Contains OS data © Crown copyright and database right 2025
Contains Royal Mail data © Royal Mail copyright and database right 2025
Contains National Statistics data © Crown copyright and database rights 2025
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license




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