As of the census² of 2000, there were 399,843 people, 150,179 households, and 106,777 families residing in the county. The population density was 324 people per square mile (125/km²). There were 165,101 housing units at an average density of 134 per square mile (52/km²). The racial makeup of the county was 63.07% White, 33.38% Black or African American, 0.67% Native American, 1.41% Asian, 0.03% Pacific Islander, 0.40% from other races, and 1.04% from two or more races. 1.22% of the population were Hispanic or Latino of any race.
There were 150,179 households out of which 34.40% had children under the age of 18 living with them, 49.50% were married couples living together, 17.70% had a female householder with no husband present, and 28.90% were non-families. 24.80% of all households were made up of individuals and 8.80% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.13.
In the county the population was spread out with 27.50% under the age of 18, 10.00% from 18 to 24, 28.70% from 25 to 44, 21.90% from 45 to 64, and 12.00% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 91.50 males. For every 100 females age 18 and over, there were 87.10 males.
The median income for a household in the county was $33,710, and the median income for a family was $40,378. Males had a median income of $32,329 versus $21,986 for females. The per capita income for the county was $17,178. About 15.60% of families and 18.50% of the population were below the poverty line, including 26.20% of those under age 18 and 14.60% of those age 65 or over.
Towns and Cities in Mobile County
Bayou La Batre
Chickasaw
Citronelle
Creola
Dauphin Island
Mobile
Mount Vernon
Prichard
Saraland
Satsuma
Adjacent Counties
Washington County (north)
Baldwin County (east)
Jackson County, Mississippi (southwest)
George County, Mississippi (west)
Greene County, Mississippi (northwest)
