Various options were being considered, such as restoring Tintern Abbey, building from scratch on Ridgeway Hill in Newport, and (the eventual choice) upgrading St Woolos, then a parish church; in the meantime the new diocese, as it covers more or less the territory of the county of Monmouth, was named the "Diocese of Monmouth".

She was elected the eleventh bishop in September 2019 and enthroned in Newport Cathedral on 1 February 2020.

In local government terms, the territory of the diocese covers the unitary authority areas of: At the Diocesan Conference, October 2017, the creation of a third archdeaconry — Gwent Valleys — from the two deaneries of Bedwellty and of Pontypool, was approved.

[2] Ian Kendall Rees (born 1966)[14] was collated Archdeacon of Monmouth on 20 June 2021.

[18] He served as an associate priest in Cardiff until 2005, then priest-in-charge near Bridgend, before moving to the Diocese of Swansea and Brecon in 2010.

Rees served in several incumbencies there along with diocesan roles and both honorary and residentiary canonries of the cathedral before his move to Monmouth as archdeacon and Director of Ministry and Discipleship.

Stella Bailey (born 1976)[25] was collated Archdeacon of the Gwent Valleys on 19 June 2022.

[26] She first studied theology at Westhill College, Birmingham, then worked in factories before joining West Midlands Police.

[29] Her title post (curacy) was at Walsgrave on Sowe, after which she served as Vicar of St Mary Magdalen, Coventry.

Under the revised Cathedrals Scheme of the Constitution of the Church in Wales [30], it stands separate from the Ministry Area/parish structure and is managed by a charitable trust.

[39] This was formed from the parishes of Cwmcarvan, Dingestow, Llandogo, Llanfihangel Tor-Y-Mynydd, Llanfihangel-Ystern-Llewern, Llangattock-Vibon-Avel, Llangovan, Llangunnog, Llanishen, Llansoy, Michel Troy, Monmouth, Overmonnow, Penallt, Penyclawdd, Rockfield, St Maughan's, Tintern Parva, Tregaer, Trellech, Trellech Grange, Whitebrook Chapel and Wonastow.

[60] 1monthly services continue in the village hall 2original dedication to St Hilary 3original dedication to St Michael This was formed from the parishes of Bettws Chapel, Cwmyoy, Grosmont, Llanarth, Llanddewi Rhyderch, Llanddewi Skirrid, Llanfair Chapel, Llanfihangel Crucorney, Llangattock-Juxta-Usk, Llangattock Lingoed, Llansantffraed, Llanthony, Llantilio Crossenny, Llantilio Pertholey, Llanvapley, Llanvetherine, Oldcastle, Penrhos and Skenfrith.

[109] As of November 2024 it was served by one Ministry Area Leader, one Associate Vicar and one Assistant Curate.

[110] This was formed from the parishes of Abertillery, Blaenavon, Capel Newydd, Cwmtillery, Llanhilleth, Six Bells and Upper Ebbw Valleys.

[148] 1in the ancient county of Glamorgan, not Monmouthshire This was formed from the parishes of Bedwas, Machen, Marshfield, Michaelston-Y-Fedw, Rudry and St Bride's Wentloog.