Mount Juliet (more commonly known as Mt. Juliet) is a city located in western Wilson County, Tennessee. A suburb of Nashville, it is approximately 17 miles (27 km) east of downtown Nashville. Mt. Juliet is located mostly between two major national east-west routes, Interstate 40 and U.S. Route 70. As of the 2015 special census, the city has a total population of 28,156. Mt. Juliet is the largest city in Wilson County

Mt. Juliet was formed in 1835 and incorporated as a city in 1972. According to the Mt. Juliet Chamber of Commerce, the name of the town has two possible explanations. One theory is that the town was named for Julia Gleaves, a person who was renowned for taking care of those in need within the community. The most widely accepted story is that Mt. Juliet is named for the Mount Juliet Estate, a manor house in County Kilkenny, Ireland. It is the only U.S. city with this name.

Mt. Juliet is located at 36°12'10" North, 86°30'49" West (36.202654, −86.513583).

According to the United States Census Bureau, the city has a total area of 16.6 square miles (43 km²), of which 16.2 square miles (42 km²) is land and 0.3 square miles (0.78 km²) is water. The total area is 1.99% water. Recent annexations along the east side of South Rutland Road as well as a land swap with the City of Lebanon for the Bel Air at Beckwith project (southeast quadrant of I-40/Beckwith Road interchange) have increased the city's geographical area to approximately 21.78 square miles (56.4 km²).

Mt. Juliet's official city slogan is "The City Between The Lakes", reflecting the city's proximity to Old Hickory Lake (Cumberland River) to its north and Percy Priest Lake (Stones River) to its south, both of which are man-made reservoirs.

As of the census of 2000, there were 12,366 people, 4,341 households, and 3,576 families residing in the city. The population density was 761.2 people per square mile (293.8/km²). There were 4,673 housing units at an average density of 287.6 per square mile (111.0/km²). The racial makeup of the city was 93.86% Caucasian, 3.93% African American, 0.39% Native American, 0.52% Asian, 0.01% Pacific Islander, 0.29% from other races, and 1.00% from two or more races. 1.17% of the population were Hispanic or Latino of any race.

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