McMahan is located in Texas. McMahan, Texas has a population of 3,759.
The median household income in McMahan, Texas is $53,457. The median household income for the surrounding county is $51,346 compared to the national median of $57,652. The median age of people living in McMahan is 33.3 years.
The average high temperature in July is 94.9 degrees, with an average low temperature in January of 36.8 degrees. The average rainfall is approximately 35.6 inches per year, with 0 inches of snow per year.