Langley, OK

ZIP code 74350 serves Quapaw, a small community in northeastern Oklahoma’s Ottawa County, near the Kansas and Missouri borders. The area is associated with the Quapaw Nation, whose tribal offices and Quapaw Tribal Museum are notable local sites. Quapaw Casino is another prominent landmark. U.S. Route 66 passes through the community, linking it with neighboring towns in the former Tri-State mining region.