Purdy is a small unincorporated community and census-designated place north of the city of Gig Harbor, and at the junction of Washington State Routes 16 and 302 on the northern boundary of Pierce County, Washington. Purdy is on the shores of Burley Lagoon and Henderson Bay at the northern end of Carr Inlet in Puget Sound. The lagoon and bay are separated by a sandspit and the Purdy Bridge.