The town of Lewisboro in Westchester County, New York, was not always known as Lewisboro.  Much of the land that was originally purchased from the Norwalk Indians in this area by Daniel Patrick of Greenwich in 1640 was later divided up to create other towns as well.  In 1747, the Town of Salem was formed, including all of this land.  However, upon reduction of land area (taking on its current size) in 1790, it came to be called South Salem.

After the Revolutionary War, the town of South Salem became an important center of industry, providing almost everything a person needed for daily living.  You could find a toolmaker, soap maker, tailor, chair maker, silversmith, shoe factory, carriage shop, and much more, all in the small community.

In 1840, John Lewis, a descendant of a family from South Salem who had made a fortune on Wall Street, acted as a financer.  He established a fund for the town and requested that it be dubbed with his name, thus giving birth to Lewisboro.  There is, however, still a hamlet within the town referred to as South Salem.

Today, the town of Lewisboro is very affluent, and residents bring in a median household income of nearly $130,000.  There are several points of interest to visitors, as well, including the Cyrus Russell Community House (built in 1868) which used to serve as a schoolhouse, and Onatru Farm, a 147-acre gift to the town from Alice Lane Poor.