Collyer
- County:
- Trego County
- County Seat:
- No
- Area (mi²):
- 0.234
- State:
- Kansas
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.