Northlake is a town in Denton County, Texas, United States. Its population was 5,201 in 2020. The town is located northwest of Grapevine Lake, about northwest of Westlake, Texas.
According to the United States Census Bureau, the town has a total area of , of which , or 0.57%, is covered by water.
As of the 2020 United States census, 5,201 people, 1,331 households, and 679 families resided in the town.
Northlake is served by the Northwest Independent School District and the Argyle Independent School District