Ballynonty lies in the extreme south-west of the parish and the village is situated about two and a half miles from New Birmingham on the road to Killenaule.  The crossroads in the centre of the village is the border between Gortnahoe-Glengoole and the latter parish. 

There were a few ringforts in the Ballynonty area, most of which have now been removed or eroded.  There is one noticeable one situated about a half mile from the village.  It's outside diameter measures approximately 90 feet.

Around the period between 1665 and 1670, Viscount Ikerrin, Pierce Butler of Lismolin, lost his lands as a result of his involvement in the Confederation of Kilkenny.   His land was divided up and shared out between some ex-soldiers of Cromwell’s army.  Some of this land in Ballynonty was given to a man named Sam Green.  In 1685, King James fled Britain to Ireland and a Catholic parliament was established in Dublin.  One of the first things the new Parliament set about doing was to judge the merits of the cases of the two thousand Puritan settlers who were awarded confiscated land in the Cromwellian settlement.  Two of the people called to face the Parliament scrutiny were Hunt of Ballinure and Sam Green of Ballynonty.

In the year between 1850-51, Ambrose Going was the major landowner in the area at the time, owning most of the land in Ballynonty.  At that time the village was known as the village of four roads.  At one time there was a Courthouse in the village and it was situated where Mrs. Jeannie Maguire now lives.  There was a door leading to the ‘jury room’ which was beside the Courthouse. This was where the Jury used to retire to reach decisions.  This site is now occupied by a public house of the same name.  In 1889 Petty Sessions took place fortnightly.  There was also a police barracks in the village at this period.  The National School built to the east outside the village is no longer in use, having closed down in the early 1980’s.  Ballynonty was once also the site of a mill, on the stream opposite the school.  In the late 1880s the Grocers and Publicans in the village were Edward McCarthy and James Spence.  The Post Mistress was a Mrs. M.A. Lane.