Kay County, Oklahoma

Kay County, Oklahoma
Kay County Courthouse in Newkirk (2010)
Location within the U.S. state of Oklahoma
Coordinates: 36°49′N 97°08′W / 36.81°N 97.14°W / 36.81; -97.14
Country United States
State Oklahoma
Founded1893
SeatNewkirk
Largest cityPonca City
Area
 • Total
945 sq mi (2,450 km2)
 • Land920 sq mi (2,400 km2)
 • Water25 sq mi (65 km2)  2.7%
Population
 (2020)
 • Total
43,700
 • Density48/sq mi (18/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websitehttps://www.courthouse.kay.ok.us/

Kay County is a county located in the U.S. state of Oklahoma. As of the 2020 census, its population was 43,700. Its county seat is Newkirk, and the largest city is Ponca City.

Kay County comprises the Ponca City micropolitan statistical area. It is in north-central Oklahoma on the Kansas state line.

Before statehood, Kay County was formed from the "Cherokee Strip" or "Cherokee Outlet" and originally designated as county "K". Its name means simply that.