Chackbay is located along the northern edge of Lafourche Parish at. Its northern boundary is the border with St. James Parish. Settlement follows the major roads through the community, which follow higher ground. Large areas away from the roads are wetland and mainly undeveloped. Louisiana Highway 20 runs through the western part of the CDP, leading south to Thibodaux, the parish seat, and northeast to Vacherie. Highway 304 runs west and southwest from Highway 20 to Bayou Lafourche west of Thibodaux, and Highway 307 runs east to Kraemer. Unincorporated communities within the Chackbay CDP are, from west to east, Choupique, Chegby, and Chackbay. According to the United States Census Bureau, the Chackbay CDP has a total area of, all of it recorded as land.
Demographics
As of the census of 2000, there were 4,018 people, 1,440 households, and 1,140 families residing in the CDP. The population density was 140.7 people per square mile. There were 1,503 housing units at an average density of 52.6 per square mile. The racial makeup of the CDP was 94.47% White, 3.98% African American, 0.70% Native American, 0.27% Asian, 0.10% from other races, and 0.47% from two or more races. Hispanic or Latino of any race were 0.75% of the population. There were 1,440 households out of which 40.8% had children under the age of 18 living with them, 66.7% were married couplesliving together, 9.5% had a female householder with no husband present, and 20.8% were non-families. 17.8% of all households were made up of individuals and 6.0% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.16. In the CDP, the population was spread out with 27.5% under the age of 18, 9.0% from 18 to 24, 33.8% from 25 to 44, 20.9% from 45 to 64, and 8.8% who were 65 years of age or older. The median agewas 34 years. For every 100 females, there were 98.9 males. For every 100 females age 18 and over, there were 95.7 males. The median income for a household in the CDP was $37,357, and the median income for a family was $41,934. Males had a median income of $31,139 versus $19,443 for females. The per capita income for the CDP was $15,389. About 10.2% of families and 13.3% of the population were below the poverty line, including 17.7% of those under age 18 and 12.3% of those age 65 or over.
