Guymon is a city located in Texas County Oklahoma. It is also the county seat of Texas County. With a 2020 population of 10,404, it is the 43rd largest city in Oklahoma and the 3010th largest city in the United States . Guymon is currently declining at a rate of -2.77% annually and its population has decreased by -9.07% since the most recent census, which recorded a population of 11,442 in 2010. Guymon reached it's highest population of in . Spanning over 8 miles, Guymon has a population density of 1,338 people per square mile.
The average household income in Guymon is $57,317 with a poverty rate of 24.64%. The median rental costs in recent years comes to $844 per month, and the median house value is $124,900. The median age in Guymon is 30.7 years, 30.1 years for males, and 31.5 years for females.