New London County is a county located in the southeastern corner of the U.S. state of Connecticut bordering Long Island Sound. As of 2010 the population was 274,055. The total area of the county is , including inland and coastal waters.
As is the case with all eight of Connecticut's counties, there is no county government and no county seat. In Connecticut, Towns are responsible for all local government activities, including fire and rescue, snow removal and schools. In a few cases, neighboring Towns will share certain resources (e.g. water, gas, etc.). New London County is merely a group of Towns on a map; it has no governmental authority.
It contains reservations of four of the five state-recognized Native American tribes, although the Paugassett were historically located further west.