Postcodes in Monmouthshire page 44 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 38,211 households with a population of about 91,283

Website: https://www.monmouthshire.gov.uk/

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
NP6 4SA Portskewett 51.59042 -2.723141 350000 188200 ST499881
NP6 4SB Portskewett 51.590438 -2.720254 350200 188200 ST501882
NP6 4SD Portskewett 51.590455 -2.717368 350400 188200 ST503881
NP6 4SE Portskewett 51.590455 -2.717368 350400 188200 ST503881
NP6 4SF Portskewett 51.591355 -2.717382 350400 188300 ST503883
NP6 4SG Portskewett 51.589503 -2.726014 349800 188100 ST497880
NP6 4SH Portskewett 51.589485 -2.7289 349600 188100 ST495880
NP6 4SJ Portskewett 51.589476 -2.730344 349500 188100 ST494880
NP6 4SL Portskewett 51.590384 -2.728915 349600 188200 ST495881
NP6 4SN Portskewett 51.588586 -2.728886 349600 188000 ST495879
NP6 4SP Portskewett 51.587678 -2.730315 349500 187900 ST494878
NP6 4SQ Portskewett 51.590375 -2.730358 349500 188200 ST494881
NP6 4SR Portskewett 51.586824 -2.723084 350000 187800 ST499878
NP6 4SS Portskewett 51.585043 -2.720169 350200 187600 ST501875
NP6 4ST Portskewett 51.585043 -2.720169 350200 187600 ST501875
NP6 4SU Portskewett 51.584144 -2.720155 350200 187500 ST501874
NP6 4SW Portskewett 51.588577 -2.730329 349500 188000 ST494879
NP6 4SX Portskewett 51.583272 -2.715811 350500 187400 ST504874
NP6 4SY Portskewett 51.583829 -2.712933 350700 187460 ST506874
NP6 4SZ Portskewett 51.584188 -2.712939 350700 187500 ST506874
NP6 4TA Portskewett 51.584188 -2.712939 350700 187500 ST506874
NP6 4TB Portskewett 51.58328 -2.714368 350600 187400 ST505873
NP6 4TD Portskewett 51.582927 -2.713352 350670 187360 ST506873
NP6 4TE Portskewett 51.583272 -2.715811 350500 187400 ST504874
NP6 4TF Portskewett 51.583272 -2.715811 350500 187400 ST504874
NP6 4TG Portskewett 51.583263 -2.717254 350400 187400 ST503873
NP6 4TH Severn 51.587299 -2.737771 348983 187863 ST489878
NP6 4TJ Portskewett 51.588613 -2.724556 349900 188000 ST498879
NP6 4TL Portskewett 51.58953 -2.721684 350100 188100 ST500881
NP6 4TN Portskewett 51.592271 -2.714509 350600 188400 ST505883
NP6 4TP Portskewett 51.591398 -2.710165 350900 188300 ST508882
NP6 4TQ Portskewett 51.589494 -2.727457 349700 188100 ST496880
NP6 4TR Portskewett 51.593179 -2.71308 350700 188500 ST506884
NP6 4TS Portskewett 51.597692 -2.710263 350900 189000 ST508890
NP6 4TT Portskewett 51.608473 -2.711876 350800 190200 ST507902
NP6 4TU Portskewett 51.604885 -2.710376 350900 189800 ST508898
NP6 4TW Portskewett 51.59139 -2.711608 350800 188300 ST507883
NP6 4TX Portskewett 51.606621 -2.720511 350200 190000 ST501900
NP6 4TY Portskewett 51.603933 -2.719024 350300 189700 ST502897
NP6 4TZ Portskewett 51.606621 -2.720511 350200 190000 ST501900
NP6 4UA Portskewett 51.599446 -2.717509 350400 189200 ST503891
NP6 4UB Portskewett 51.594078 -2.713094 350700 188600 ST506885
NP6 4UD Portskewett 51.588586 -2.728886 349600 188000 ST495879
NP6 4UE Portskewett 51.590429 -2.721698 350100 188200 ST500882
NP6 4UF Portskewett 51.599446 -2.717509 350400 189200 ST503891
NP6 4UG Portskewett 51.592262 -2.715953 350500 188400 ST504883
NP6 4UH Portskewett 51.600283 -2.727629 349700 189300 ST496893
NP6 4UJ Portskewett 51.591363 -2.715938 350500 188300 ST504882
NP6 4UL Portskewett 51.590393 -2.727471 349700 188200 ST496881
NP6 4UN Portskewett 51.603798 -2.740681 348800 189700 ST487897
NP6 4UP Portskewett 51.597532 -2.736248 349100 189000 ST490890
NP6 4UQ Caerwent 51.608294 -2.740754 348800 190200 ST487902
NP6 4UR Portskewett 51.590393 -2.727471 349700 188200 ST496881
NP6 4US Portskewett 51.596651 -2.733346 349300 188900 ST492889
NP6 4UT Caerwent 51.611143 -2.71625 350500 190500 ST504905
NP6 4UU Portskewett 51.595859 -2.716009 350500 188800 ST504888
NP6 4UW Caerwent 51.608285 -2.742198 348700 190200 ST486902
NP6 4UX Portskewett 51.595859 -2.716009 350500 188800 ST504888
NP6 4UY Portskewett 51.595859 -2.716009 350500 188800 ST504888
NP6 4UZ Portskewett 51.595859 -2.716009 350500 188800 ST504888
NP6 4XA Severn 51.58934 -2.751994 348000 188100 ST479881
NP6 4XB Severn 51.59023 -2.753452 347900 188200 ST478882
NP6 4XD Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4XE Severn 51.584028 -2.738916 348900 187500 ST488875
NP6 4XF Severn 51.584927 -2.738931 348900 187600 ST488876
NP6 4XG Severn 51.584927 -2.738931 348900 187600 ST488876
NP6 4XH Caerwent 51.614411 -2.768295 346900 190900 ST468909
NP6 4XJ Caerwent 51.614411 -2.768295 346900 190900 ST468909
NP6 4XL Caerwent 51.614411 -2.768295 346900 190900 ST468909
NP6 4XN West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4XP Portskewett 51.597532 -2.736248 349100 189000 ST490890
NP6 4XQ Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4XR Portskewett 51.597532 -2.736248 349100 189000 ST490890
NP6 4XS Portskewett 51.584135 -2.721598 350100 187500 ST500874
NP6 4XT Portskewett 51.584135 -2.721598 350100 187500 ST500874
NP6 4XU Severn 51.585808 -2.741832 348700 187700 ST486877
NP6 4XW Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4XX Portskewett 51.584135 -2.721598 350100 187500 ST500874
NP6 4XY Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4XZ Portskewett 51.584135 -2.721598 350100 187500 ST500874
NP6 4YA West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4YB Caldicot Cross 51.592541 -2.75056 348103 188455 ST481884
NP6 4YD Severn 51.587639 -2.73375 349262 187898 ST492878
NP6 4YE Severn 51.589331 -2.753437 347900 188100 ST478881
NP6 4YF Severn 51.589331 -2.753437 347900 188100 ST478881
NP6 4YG Severn 51.589331 -2.753437 347900 188100 ST478881
NP6 4YH Severn 51.587639 -2.73375 349262 187898 ST492878
NP6 4YJ Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4YL Severn 51.589331 -2.753437 347900 188100 ST478881
NP6 4YN Severn 51.589331 -2.753437 347900 188100 ST478881
NP6 4YP Severn 51.587639 -2.73375 349262 187898 ST492878
NP6 4YQ Caldicot Cross 51.592541 -2.750574 348102 188455 ST481884
NP6 4YR Severn 51.588413 -2.756309 347700 188000 ST476880
NP6 4YS West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4YT West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4YU West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4YW Severn 51.587639 -2.73375 349262 187898 ST492878
NP6 4YX West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4YY West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4ZA West End 51.587486 -2.760624 347400 187900 ST473879
Contains OS data © Crown copyright and database right 2026
Contains Royal Mail data © Royal Mail copyright and database right 2026
Contains National Statistics data © Crown copyright and database rights 2026
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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