Newtown is a town in Fairfield County, Connecticut, United States. It is part of the greater Danbury metropolitan area as well as the New York metropolitan area. Newtown was founded in 1705, and later incorporated in 1711. As of the 2010 census, its population was 27,560. The western half of Newtown (ZIP Code 06470) is one of the most affluent areas in Connecticut.
In 1705, English colonists purchased the Townsite from the Pohtatuck Indians, a branch of the Pasgussett. It was originally known as Quanneapague. Settled by migrants from Stratford and incorporated in 1711, Newtown residents had many business and trading ties with the English. It was a stronghold of Tory sentiment during the early Revolutionary War. Late in the war, French General Rochambeau and his troops encamped there in 1781 during their celebrated march on their way to the siege of Yorktown, Virginia, which ended the Revolution.
An important crossroads throughout its early history, the village of Hawleyville briefly emerged as a railroad center. The town's population grew to over 4,000 circa 1881.