|— Town —|
|• Mayor||James S Artz|
|• Total||1.8 sq mi (4.7 km2)|
|• Land||1.8 sq mi (4.7 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||466 ft (142 m)|
|• Density||766.8/sq mi (296.1/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||1498507|
Louisa is located at .(38.024057, -78.001584)
According to the United States Census Bureau, the city has a total area of 1.8 square miles (4.7 km²), of which 1.8 square miles (4.7 km²) is land and 0.55% is water.
As of the census of 2000, there were 1,401 people, 584 households, and 331 families residing in the town. The population density was 766.8 people per square mile (295.6/km²). There were 620 housing units at an average density of 339.4 per square mile (130.8/km²). The racial makeup of the town was 66.81% White, 29.48% African American, 0.79% Native American, 0.71% Asian, 0.79% from other races, and 1.43% from two or more races. Hispanic or Latino of any race were 1.43% of the population.
There were 584 households out of which 30.0% had children under the age of 18 living with them, 35.6% were married couples living together, 16.4% had a female householder with no husband present, and 43.3% were non-families. 37.0% of all households were made up of individuals and 18.3% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.93.
In the town the population was spread out with 24.8% under the age of 18, 7.9% from 18 to 24, 28.5% from 25 to 44, 19.2% from 45 to 64, and 19.6% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 81.5 males. For every 100 females age 18 and over, there were 73.1 males.
The median income for a household in the town was $29,519, and the median income for a family was $42,396. Males had a median income of $27,578 versus $23,188 for females. The per capita income for the town was $17,763. About 14.7% of families and 18.7% of the population were below the poverty line, including 27.9% of those under age 18 and 17.0% of those age 65 or over.
Points of interest 
Louisa is home to the North Anna Nuclear Generating Station which produces electricity and jobs for the county's inhabitants. The warm water produced from the power plant and discharged into the water of Lake Anna creates what some call Central Virginia's best fishing.
The 2011 Virginia earthquake had its epicenter just 7 miles (11 kilometers) south-southeast of Louisa. This quake registered 5.8 magnitude, and caused the evacuations of buildings on Capitol Hill in Washington, DC, as well as New York City and was felt as far North as Canada.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- Magnitude 5.8 - VIRGINIA