Kaplan is a city in Vermilion Parish, Louisiana, United States. The population was 4,600 at the 2010 census. It is part of the Abbeville Micropolitan Statistical Area.
Kaplan is located at 30°0′16″N 92°17′9″W / 30.00444°N 92.28583°W / 30.00444; -92.28583 (30.004548, -92.285964).
According to the United States Census Bureau, the city has a total area of 2.2 square miles (5.7 km), all land.
As of the census of 2000, there were 5,177 people, 2,069 households, and 1,342 families residing in the city. The population density was 2,298.6 people per square mile (888.4/km²). There were 2,265 housing units at an average density of 1,005.7 per square mile (388.7/km²). The racial makeup of the city was 85.13% White, 12.92% African American, 0.17% Native American, 0.50% Asian, 0.02% Pacific Islander, 0.21% from other races, and 1.04% from two or more races. Hispanic or Latino of any race were 1.20% of the population.
There were 2,069 households out of which 31.6% had children under the age of 18 living with them, 46.3% were married couples living together, 14.2% had a female householder with no husband present, and 35.1% were non-families. 30.9% of all households were made up of individuals and 17.0% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 3.06.
In the city, the population was spread out with 25.8% under the age of 18, 9.4% from 18 to 24, 25.5% from 25 to 44, 19.5% from 45 to 64, and 19.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 86.8 males. For every 100 females age 18 and over, there were 80.3 males.
The median income for a household in the city was $22,535, and the median income for a family was $30,236. Males had a median income of $29,387 versus $19,198 for females. The per capita income for the city was $12,340. About 25.0% of families and 33.5% of the population were below the poverty line, including 48.3% of those under age 18 and 32.3% of those age 65 or over.