
Southmayd
- County:
- Grayson County
- County Seat:
- No
- Area (mi²):
- 2.819
- State:
- Texas
Southmayd is a city located in Grayson County, Texas. Southmayd has a 2025 population of 1,142. Southmayd is currently growing at a rate of 2.7% annually and its population has increased by 14.89% since the most recent census, which recorded a population of 994 in 2020.
The average household income in Southmayd is $82,301 with a poverty rate of 16.73%. The median age in Southmayd is 35.1 years: 37.9 years for males, and 31.7 years for females.