St. Clair is a township in southwestern Ontario, Canada, in Lambton County on the St. Clair River.

According to the 2001 Statistics Canada Census:

  • Population: 14,659
  • % Change (1996-2001): -2.8
  • Dwellings: 5,749
  • Area (sq. km.): 619.29
  • Density (persons per sq. km.): 23.7

Communities

  • Avonry
  • Babys Point
  • Becher
  • Bickford
  • Bradshaw
  • Brigden
  • Charlemont
  • Colinville
  • Courtright
  • Courunna
  • Cromar
  • Duthill
  • Frog Point
  • Froomfield
  • Kimball
  • Ladysmith
  • Moore Centre
  • Mooretown
  • Osborne
  • Payne
  • Port Lambton
  • Seckerton
  • Sombra
  • Sykeston
  • Thornyhurst
  • Waubono
  • West Becher
  • Wilkesport 






North: Sarnia, Sarnia 45





West: Marine City, Michigan 
 		
St. Clair
East: Enniskillen, Dawn-Euphemia


South: Chatham-Kent