The Quiet Corner, also known as Northeastern Connecticut, is a region of the state of Connecticut, located in the northeastern corner of the state. It is generally associated with Windham County, but also incorporates eastern sections of Tolland County and the northern portion of New London County. The most frequently cited boundary is the semi-rural town of Coventry, which is more rustic than the more suburban towns to the west.
The Quiet Corner is more rural than southern or central Connecticut, with large areas of farmland, rivers and lakes, and state forests. Its population centers are largely rural and semi-rural towns, many with populations below 5,000. It is one of the least-urbanized districts along the Northeast Megalopolis. Many of the towns are within a long commuting distance of Boston, but none are considered a part of the Boston Metropolitan Area, with only the Interstate 395 freeway spur passing through the "Quiet Corner" as a nationally signed part of the Interstate Highway System. Interstate 84 also passes near the western end of the region and cuts through the northwestern part. Much of the region is part of the Quinebaug and Shetucket Rivers Valley National Heritage Corridor.
Windham, including the borough of Willimantic, is the largest town in the region with a population of 25,000. The area also has a long history with watermills, due to its many fast river and streams. Many were on the Willimantic River or the Quinebaug River.