Delanco Township is a township in Burlington County, New Jersey, United States. As of the 2010 United States Census, the township's population was 4,283, reflecting an increase of 1,046 (+32.3%) from the 3,237 counted in the 2000 Census, which had in turn declined by 79 (−2.4%) from the 3,316 counted in the 1990 Census. Delanco was named for the Delaware River and Rancocas Creek, which border the community. It was originally called Del-Ranco or Delaranco, a syllabic abbreviation later shortened to Delanco. It is a dry township where alcohol cannot be sold.