Edmondson is a town in Crittenden County, Arkansas, United States. The population was 427 at the 2010 census.
Edmondson is located in south-central Crittenden County at 35°6′13″N 90°18′29″W (35.103619, -90.308190). It is 4 miles (6 km) south of Interstate 40, which then leads 6 miles (10 km) east to West Memphis and 14 miles (23 km) east to downtown Memphis, Tennessee.
According to the United States Census Bureau, Edmondson has a total area of 3.2 square miles (8.4 km2), all land.
As of the census of 2000, there were 513 people, 174 households, and 140 families residing in the town. The population density was 60.9/km2 (157.7/mi2). There were 198 housing units at an average density of 23.5/km2 (60.9/mi2). The racial makeup of the town was 27.49% White, 71.15% Black or African American, 0.58% Native American, 0.19% from other races, and 0.58% from two or more races. 0.39% of the population were Hispanic or Latino of any race.
There were 174 households, out of which 42.5% had children under the age of 18 living with them, 47.7% were married couples living together, 26.4% had a female householder with no husband present, and 19.0% were non-families. 15.5% of all households were made up of individuals, and 5.7% had someone living alone who was 65 years of age or older.