When New Brunswick was established in 1784 it was divided into eight counties. As the population grew, the original counties were divided and new counties set up; the final
complement is 15. These counties are subdivided into civil parishes similar to American townships.
Full descriptions of all fifteen counties by the Provincial Archives in PDF format. Offers a simple map and a statistical and genealogical guide of the county. http://archives.gnb.ca/Archives/Default.aspx
The act gives the legal boundary description of each county and its parishes. Parishes are listed under their parent counties. http://www.gnb.ca/0062/acts/acts/t-03.htm