
Old Green
- County:
- Adair County
- County Seat:
- No
- Area (mi²):
- 3.143
- State:
- Oklahoma
Old Green is a CDP located in Adair County, Oklahoma. Old Green has a 2025 population of 574. Old Green is currently growing at a rate of 3.24% annually and its population has increased by 9.13% since the most recent census, which recorded a population of 526 in 2020.
The average household income in Old Green is $71,815 with a poverty rate of 26.23%. The median age in Old Green is 31.8 years: 36.6 years for males, and 14.8 years for females.