St. Helena Parish (French: Paroisse de Sainte-Hélène) is a parish in the U.S. state of Louisiana. As of the 2010 census, the population was 11,203. Its seat is Greensburg. The parish was created in 1810.
According to the U.S. Census Bureau, the parish has a total area of 409 square miles (1,060 km), of which 408 square miles (1,060 km) is land and 1.1 square miles (2.8 km) (0.3%) is water.
As of the 2010 United States Census, there were 11,203 people residing in the parish. 53.3% were Black or African American, 44.9% White, 0.3% Native American, 0.1% Asian, 0.5% of some other race and 0.8% of two or more races. 0.9% were Hispanic or Latino (of any race).
As of 2000, there were 10,525 people, 3,873 households, and 2,784 families residing in the parish. The population density was 10/km² (26/mi). There were 5,034 housing units at an average density of 5 persons/km² (12 persons/mi). The racial makeup of the parish was 52.42% Black or African American, 46.53% White, 0.10% Native American, 0.10% Asian, 0.01% Pacific Islander, 0.14% from other races, and 0.71% from two or more races. 0.99% of the population were Hispanic or Latino of any race.
There were 3,873 households, out of which 34.00% had children under the age of 18 living with them, 48.90% were married couples living together, 18.40% had a female householder with no husband present, and 28.10% were non-families. 25.40% of all households were made up of individuals and 10.40% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.27.
In the parish, the population was spread out with 29.00% under the age of 18, 9.10% from 18 to 24, 26.10% from 25 to 44, 23.30% from 45 to 64, and 12.50% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 92.40 males. For every 100 females age 18 and over, there were 87.60 males.
The median income for a household in the parish was $24,970, and the median income for a family was $29,950. Males had a median income of $30,218 versus $16,853 for females. The per capita income for the parish was $12,318. About 22.80% of families and 26.80% of the population were below the poverty line, including 35.50% of those under age 18 and 23.20% of those age 65 or over.