Logan Township is a township in Gloucester County, New Jersey. As of the 2010 U.S. census, the township's population was 6,042, reflecting an increase of 10 (+0.2%) from the 6,032 counted in the 2000 census, which had in turn increased by 885 (+17.2%) from the 5,147 counted in the 1990 census. Logan Township was originally formed as West Woolwich Township by an act of the New Jersey Legislature on March 7, 1877, from portions of Woolwich Township. That name lasted just less than a year, as the name was changed to Logan Township as of March 6, 1878.