"LLANVIHANGEL-NIGH-USK, a parish in the upper division of the hundred of Abergavenny, county Monmouth, 4 miles S.E. of Abergavenny. Usk is its post town. The river Usk flows through the parish. The living is a rectory in the diocese of Llandaff, value £123. The church is dedicated to St. Michael. The bequests for charitable purposes produce about £15 per annum." [Description(s) from The National Gazetteer of Great Britain and Ireland (1868)
Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 1, South Wales.Ed. by I.G Jones, & D. Williams. UWP, Cardiff, 1976. The names given towards the end of each entry are those of the informants. Check with Gwent RO to see what extant records are held, and possible names of chapels/churches established after 1851.
Llanvihangel-nigh-Usk Parish; Statistics; Area 385 acres; Population 71 males, 68 females, total 139
Llanvihangel-by-Usk Parish Church Attendance - afternoon 86 1 service in English William Price, Minister
Family Search have an interactive map called "England and Wales Jurisdictions 1851" showing parish (and other) boundaries with optional background maps such as Ordnance Survey. There is also a Search facility, do read the guidance notes to get maximum benefit from this useful resource. See here for further background information to assist in the interpretation of this data
Kain, R.J.P., Oliver, R.R., Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. Colchester, Essex: History Data Service, UK Data Archive [distributor], 17 May 2001. SN: 4348. Here is a gazetteer/finding aid plus a set of overview maps to accurately identify the position of parishes within the county.
You can see maps centred on OS grid reference SO346092 (Lat/Lon: 51.777629, -2.949345), Llanfihangel-Y-Gofion / Llanfihangel Gobion which are provided by: