Oak Grove is a somewhat small city located in the state of Kentucky. With a population of 7,973 people and two associated neighborhoods, Oak Grove is the 54th largest community in Kentucky. There's nothing like the smell of a brand new house, and in Oak Grove, you'll find that a large proportion of houses were recently built. New growth in residential real estate is an indication that people are choosing to move to Oak Grove, and putting down their money on brand new construction. Oak Grove’s real estate is, on average, some of the newest in the nation. Oak Grove does seem to be experiencing an influx of affluent people, because the median household income is $47,886.00.

Oak Grove is a military town: the armed forces employs 16.55% of the workforce, making the military a major focus of life in the city. In the civilian sector, Retail and Manufacturing are important in the local economy and are the city’s largest civilian employers, employing 25.79% and 17.36% of the civilian workforce respectively.

Oak Grove is a small city, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

The percentage of adults in Oak Grove with college degrees is slightly lower than the national average of 21.84% for all communities. 15.03% of adults in Oak Grove have a bachelor's degree or advanced degree.

The per capita income in Oak Grove in 2022 was $20,282, which is low income relative to Kentucky and the nation. This equates to an annual income of $81,128 for a family of four. However, Oak Grove contains both very wealthy and poor people as well.

Oak Grove is an extremely ethnically-diverse city. The people who call Oak Grove home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Oak Grove residents report their race to be White, followed by Black or African-American. Oak Grove also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 14.10% of the city’s residents. Important ancestries of people in Oak Grove include German, Italian, Irish, English, and European.

The most common language spoken in Oak Grove is English. Other important languages spoken here include Spanish and Italian.