McClain County, Oklahoma

McClain County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF MCCLAIN GUS Population: 48,434 (2024) ID: 193930	County	Official County Government	Contact: COUNTY CLERK PO BOX 629, PURCELL OK 73080-0629
CITY OF NEWCASTLE GUS Population: 14,677 (2024) ID: 193944	Municipal	Municipal Government Within County	Contact: CITY MANAGER PO BOX 179, NEWCASTLE OK 73065-0179
CITY OF BLANCHARD GUS Population: 9,869 (2024) ID: 209163	Municipal	Municipal Government Within County	Contact: CITY MANAGER PO BOX 480, BLANCHARD OK 73010
CITY OF PURCELL GUS Population: 6,938 (2024) ID: 111353	Municipal	Municipal Government Within County	Contact: MAYOR 230 W MAIN ST, PURCELL OK 73080-4211
TOWN OF GOLDSBY GUS Population: 3,516 (2024) ID: 111354	Municipal	Municipal Government Within County	Contact: MAYOR 100 E CENTER RD, GOLDSBY OK 73093-9112
TOWN OF DIBBLE GUS Population: 985 (2024) ID: 173490	Municipal	Municipal Government Within County	Contact: CLERK COURT PO BOX 57, DIBBLE OK 73031-0057
TOWN OF WASHINGTON GUS Population: 767 (2024) ID: 173488	Municipal	Municipal Government Within County	Contact: TOWN ADMINISTRATOR PO BOX 127, WASHINGTON OK 73093-0127
TOWN OF WAYNE GUS Population: 670 (2024) ID: 173489	Municipal	Municipal Government Within County	Contact: CLERK PO BOX 160, WAYNE OK 73095-0160
TOWN OF COLE GUS Population: 652 (2024) ID: 133002	Municipal	Municipal Government Within County	Contact: TOWN CLERK 26887 MAIN ST, BLANCHARD OK 73010-4611
TOWN OF BYARS GUS Population: 204 (2024) ID: 133000	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 251, BYARS OK 74831-0251
TOWN OF ROSEDALE GUS Population: 68 (2024) ID: 133001	Municipal	Municipal Government Within County	Contact: ROSEDALE PO BOX 629, PURCELL OK 73080