La Mesa is located in California. La Mesa, California 91942has a population of 59,246. La Mesa 91942 is less family-centric than the surrounding county with 26.5% households with children. The county percentage for households with children is 30%.
The median household income in La Mesa, California 91942 is $67,579. The median household income for the surrounding county is $77,898 compared to the national median of $61,963. The median age of people living in La Mesa 91942 is 38.9 years.
The average high temperature in July is 83.6 degrees, with an average low temperature in January of 45.7 degrees. The annual precipitation is 13.75.