Collinsville, OK

ZIP code 74021 encompasses the city of Collinsville in Oklahoma. This area is known for its charming downtown area, which includes historic buildings, local shops, and restaurants. One of the most important landmarks in 74021 is the Collinsville Veterans Memorial, honoring those who have served in the military. The nearby Collinsville Lake offers recreational activities such as fishing and boating, making it a popular spot for outdoor enthusiasts.