Cornwall Community Profile

Cornwall, a borough in Lebanon County, is situated on 9.9 square miles, making it the largest  borough (geographically) in the continental United States.  The population of Cornwall is only approximately 4,000 people, less than 400 residents per square mile.

Cornwall owes its being to Peter Grubb, a 19 year old immigrant who in 1737 came prospecting and discovered three hills of magnetic iron ore, purchased a total of 442.5 acres of land and established what was to become one of the world-renowned and most productive iron ore mining operations of all time. The Cornwall Iron Ore Mines closed in 1973 after 234 years of continuous production.