
Knollwood
- County:
- Grayson County
- County Seat:
- No
- Area (mi²):
- 0.325
- State:
- Texas
Knollwood is a city located in Grayson County, Texas. Knollwood has a 2025 population of 831. Knollwood is currently growing at a rate of 1.59% annually and its population has increased by 8.2% since the most recent census, which recorded a population of 768 in 2020.
The average household income in Knollwood is $63,466 with a poverty rate of 8.73%. The median age in Knollwood is 33.5 years: 29.4 years for males, and 45.5 years for females.