Postcodes in Monmouthshire page 39 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
NP5 4XG Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4XH Mitchel Troy and Trellech United 51.784099 -2.724408 350126 209741 SO501097
NP5 4XJ Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4XL Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4XN Overmonnow 51.804433 -2.720759 350400 212001 SO503120
NP5 4XP Mitchel Troy and Trellech United 51.784099 -2.724408 350126 209741 SO501097
NP5 4XQ Overmonnow 51.804433 -2.720759 350400 212001 SO503120
NP5 4XR Overmonnow 51.804433 -2.720759 350400 212001 SO503120
NP5 4XW Mitchel Troy and Trellech United 51.755235 -2.677962 353300 206500 SO532065
NP5 4XZ Overmonnow 51.804433 -2.720759 350400 212001 SO503120
NP5 4YA Mitchel Troy and Trellech United 51.784235 -2.785673 345900 209800 SO458098
NP5 4YB Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YD Mitchel Troy and Trellech United 51.784099 -2.724408 350126 209741 SO501097
NP5 4YE Mitchel Troy and Trellech United 51.751656 -2.675011 353500 206100 SO534061
NP5 4YF Mitchel Troy and Trellech United 51.784235 -2.785673 345900 209800 SO458098
NP5 4YG Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YH Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YJ Mitchel Troy and Trellech United 51.784235 -2.785673 345900 209800 SO458098
NP5 4YL Town 51.812551 -2.716537 350700 212901 SO506129
NP5 4YN Mitchel Troy and Trellech United 51.784235 -2.785673 345900 209800 SO458098
NP5 4YP Mitchel Troy and Trellech United 51.784099 -2.724408 350126 209741 SO501097
NP5 4YQ Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YR Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YS Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YT Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YU Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YW Overmonnow 51.802662 -2.71638 350700 211801 SO506118
NP5 4YX Mitchel Troy and Trellech United 51.784099 -2.724408 350126 209741 SO501097
NP5 4YY Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP5 4YZ Mitchel Troy and Trellech United 51.78409 -2.724422 350125 209740 SO501097
NP6 1HL Llangybi Fawr 51.647113 -2.966857 333200 194700 ST331947
NP6 1HN Llangybi Fawr 51.647113 -2.966857 333200 194700 ST331947
NP6 1HP Llangybi Fawr 51.649845 -2.962579 333500 195000 ST334950
NP6 1HS Llangybi Fawr 51.635473 -2.960829 333600 193400 ST335934
NP6 1HT Llangybi Fawr 51.635485 -2.959385 333700 193400 ST336934
NP6 1HU Llangybi Fawr 51.645327 -2.965374 333300 194500 ST332945
NP6 1HW Llangybi Fawr 51.647113 -2.966857 333200 194700 ST331947
NP6 1HX Llangybi Fawr 51.655144 -2.974256 332700 195600 ST326956
NP6 1HY Llangybi Fawr 51.654388 -2.956893 333900 195500 ST338955
NP6 1HZ Llangybi Fawr 51.654399 -2.955447 334000 195500 ST339955
NP6 1JA Llangybi Fawr 51.663378 -2.957082 333900 196500 ST338965
NP6 1JB Llangybi Fawr 51.632882 -2.94777 334500 193100 ST344931
NP6 1LQ Llangybi Fawr 51.629297 -2.946251 334600 192700 ST345927
NP6 1LR Llangybi Fawr 51.641976 -2.934954 335400 194100 ST353941
NP6 1LS Llangybi Fawr 51.635648 -2.939158 335100 193400 ST350934
NP6 1LT Llangybi Fawr 51.639416 -2.91756 336600 193800 ST365938
NP6 1LU Llangybi Fawr 51.625817 -2.931732 335600 192300 ST355923
NP6 1LW Llangybi Fawr 51.642909 -2.930637 335700 194200 ST356942
NP6 1LX Llangybi Fawr 51.625817 -2.931732 335600 192300 ST355923
NP6 1LY Llangybi Fawr 51.625817 -2.931732 335600 192300 ST355923
NP6 1LZ Llangybi Fawr 51.625817 -2.931732 335600 192300 ST355923
NP6 3AB Caerwent 51.606887 -2.817266 343500 190100 ST434901
NP6 3AL Caerwent 51.594148 -2.838691 342000 188700 ST419887
NP6 3AP Caerwent 51.593176 -2.848778 341300 188600 ST412886
NP6 3AR Caerwent 51.607786 -2.817282 343500 190200 ST434902
NP6 3AS Caerwent 51.610423 -2.825994 342900 190500 ST428905
NP6 3AT Caerwent 51.605917 -2.827356 342800 190000 ST427900
NP6 3AU Caerwent 51.61405 -2.821727 343200 190900 ST431909
NP6 3AZ Shirenewton 51.643657 -2.830934 342600 194200 ST425942
NP6 3BB Caerwent 51.597826 -2.827209 342800 189100 ST427891
NP6 3BH Shirenewton 51.643657 -2.830934 342600 194200 ST425942
NP6 3BP Rogiet 51.596068 -2.821402 343200 188900 ST431889
NP6 3BU Magor West 51.582471 -2.837033 342100 187400 ST420874
NP6 3BW Magor East with Undy 51.578997 -2.819651 343300 187000 ST432870
NP6 3BX Magor East with Undy 51.588856 -2.824159 343000 188100 ST429881
NP6 3BY Magor East with Undy 51.58434 -2.826964 342800 187600 ST427876
NP6 3BZ Magor West 51.584269 -2.837066 342100 187600 ST420876
NP6 3DB Magor West 51.576973 -2.851363 341100 186800 ST410868
NP6 3DG Magor East with Undy 51.588846 -2.825602 342900 188100 ST428881
NP6 3DH Magor West 51.578016 -2.831179 342500 186900 ST424869
NP6 3DJ Magor East with Undy 51.578087 -2.821078 343200 186900 ST431869
NP6 3DL Magor West 51.57534 -2.828244 342700 186600 ST426866
NP6 3DN Magor East with Undy 51.572733 -2.81521 343600 186300 ST435863
NP6 3DP Magor East with Undy 51.572733 -2.81521 343600 186300 ST435863
NP6 3DQ Magor East with Undy 51.578087 -2.821078 343200 186900 ST431869
NP6 3DW Magor East with Undy 51.572733 -2.81521 343600 186300 ST435863
NP6 3EB Magor West 51.577924 -2.844165 341600 186900 ST415869
NP6 3ED Magor West 51.564612 -2.819392 343300 185400 ST432854
NP6 3EE Magor West 51.564612 -2.819392 343300 185400 ST432854
NP6 3EF Magor East with Undy 51.579926 -2.815338 343600 187100 ST435871
NP6 3EG Magor West 51.579561 -2.830254 342566 187071 ST425870
NP6 3EH Magor East with Undy 51.578956 -2.825423 342900 187000 ST428870
NP6 3EJ Magor East with Undy 51.582583 -2.821159 343200 187400 ST431874
NP6 3EL Magor East with Undy 51.581744 -2.812484 343800 187300 ST437873
NP6 3EN Magor East with Undy 51.579906 -2.818224 343400 187100 ST433871
NP6 3EP Magor West 51.578915 -2.831195 342500 187000 ST424870
NP6 3EQ Magor West 51.577148 -2.826833 342800 186800 ST427868
NP6 3ER Magor West 51.578915 -2.831195 342500 187000 ST424870
NP6 3ES Magor West 51.578027 -2.829736 342600 186900 ST425869
NP6 3ET Magor West 51.578926 -2.829752 342600 187000 ST425870
NP6 3EU Magor West 51.580724 -2.829785 342600 187200 ST425872
NP6 3EW Magor East with Undy 51.577219 -2.816733 343500 186800 ST434868
NP6 3EX Magor East with Undy 51.578087 -2.821078 343200 186900 ST431869
NP6 3EY Magor East with Undy 51.578097 -2.819635 343300 186900 ST432869
NP6 3EZ Magor West 51.579835 -2.828325 342700 187100 ST426871
NP6 3FA Magor West 51.579835 -2.828325 342700 187100 ST426871
NP6 3FB Magor West 51.579835 -2.828325 342700 187100 ST426871
NP6 3FD Magor West 51.579835 -2.828325 342700 187100 ST426871
NP6 3FE Magor West 51.579835 -2.828325 342700 187100 ST426871
NP6 3HA Magor East with Undy 51.579896 -2.819667 343300 187100 ST432871
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