"Waterford, a county of Ireland, province of Munster, bounded N by Kilkenny and Tipperary, E by Wexford, S by the sea, and W by Cork, 42 m. long E to W, and 8 to 22 broad. Area, 425,692 acres, divided into 74 parishes. It presents a diversity of soil and prospect, but in general is pleasant and fertile, yet in many parts mountainous and rocky; even on the sides of the mountains, however, there is good pasture for cattle. It sends 2 members to the imperial parliament. Pop. 127,679."
[From The New London Gazetteer (1826)]
The Irish Ancestors website (subscription) has the following types of records: State Registration of Births, Marriages & Deaths, Census returns, Land records, Church records, Genealogical Office records, Gravestone inscriptions, Directories, Newspapers, Wills, Deeds, and Occupations.
The Fianna website's pages for County Waterford provide important addresses and extensive information about online and other genealogy resources.
Roots Ireland (subscription) "offers access to a unique database of more than 20 million Irish records". Its Waterford coverage includes Baptismal/Birth Records, Marriage Records, Burial/Death Records and Griffith's Valuation (Free Access).