Postcodes in Monmouthshire page 44 Unitary Authority

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

Parishes in this Unitary Authority
Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

Postcode Ward Latitude Longitude Easting Northing Grid ref
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
NP6 4ZB West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4ZD Caldicot Cross 51.594707 -2.756413 347700 188700 ST476887
NP6 4ZE West End 51.587486 -2.760624 347400 187900 ST473879
NP6 4ZF Caldicot Cross 51.594707 -2.756413 347700 188700 ST476887
NP6 4ZG Caldicot Cross 51.594707 -2.756413 347700 188700 ST476887
NP6 4ZH Caldicot Cross 51.594707 -2.756413 347700 188700 ST476887
NP6 4ZJ West End 51.587486 -2.760624 347400 187900 ST473879
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