About Oak Grove, KYOak Grove is located in Kentucky. Oak Grove, Kentucky has a population of 7,535. Oak Grove is more family-centric than the surrounding county with 37% households with children. The county percentage for households with children is 35%. The median household income in Oak Grove, Kentucky is $44,352. The median household income for the surrounding county is $41,886 compared to the national median of $61,963. The median age of people living in Oak Grove is 30.6 years. Oak Grove WeatherThe average high temperature in July is 90.4 degrees, with an average low temperature in January of 25 degrees. The annual precipitation is 51.78. Oak Grove MapOak Grove real estate officesReal estate near Oak GroveNearby CitiesNearby Cities Homes for Sale |