Collyer is a city located in Trego County, Kansas. Collyer has a 2026 population of 94. Collyer is currently declining at a rate of 0% annually and its population has decreased by -1.05% since the most recent census, which recorded a population of 95 in 2020.
The median household income in Collyer is $76,667 with a poverty rate of 17.39%. The median age in Collyer is 53.8 years: 50 years for males, and 54.8 years for females. For every 100 females there are 109.1 males.