Mercer Real EstateMercer is located in Tennessee. Mercer, Tennessee has a population of 659. Mercer is more family-centric than the surrounding county with 42.63% of the households containing married families with children. The county average for households married with children is 25.45%. The median household income in Mercer, Tennessee is $52,900. The median household income for the surrounding county is $44,496 compared to the national median of $57,652. The median age of people living in Mercer is 40.6 years. Mercer WeatherThe average high temperature in July is 90.5 degrees, with an average low temperature in January of 28.3 degrees. The average rainfall is approximately 54.9 inches per year, with 4.6 inches of snow per year. Mercer MapReal estate near MercerNearby CitiesNearby Cities Homes for Sale |