"LLANHENNOCK, a parish in the lower division of the hundred of Usk, county Monmouth, 4 miles N.E. of Newport, its post town, and 8 from Pontypool. It is situated on the banks of the river Usk. The village consists of a few farmhouses. The tithes were commuted in 1839. The living is a perpetual curacy in the diocese of Llandaff, value £64, in the patronage of the dean and chapter. The church is dedicated to St. John the Baptist."
[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.
Llanhennock Parish; Statistics; Area 1506 acres; Population 109 males, 113 females, total 222
Llanhenog Parish Church Attendance - morning 80 + 30 scholars 1 service in English Incumbent; William Howell
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 ST353926 (Lat/Lon: 51.628432, -2.936150), Llanhenwg / Llanhennock which are provided by: