St. Clair County AL Information


St. Clair County Subdivisions

St. Clair County AL Data & Demographics (As of July 1, 2017)


Total Population 87,673
Daytime Population: Workers 19,302
Daytime Population: Residents 49,446
Total Daytime Population (TDP) 68,748
Ratio TDP/Total Population1 0.78
Population in Households 85,790
Population in Familes 73,567
Population in Group Qrtrs 1,883
Population Density2 139
Diversity Index3 28


Median Household Income $52,946
Average Household Income $66,982
Per Capita Income $25,785


Total Housing Units 37,479 (100%)
Owner Occupied HU 26,092 (69.6%)
Renter Occupied HU 7,243 (19.3%)
Vacant Housing Units 4,144 (11.1%)
Median Home Value $151,221
Average Home Value $177,002


Total Households 33,335
Average Household Size 2.57
Family Households 24,314
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.66% 0.69%
Households 0.73% 0.73%
Families 0.55% 0.61%
Median Household Income   2.14%
Per Capita Income   3.02%


St. Clair County AL - Peer Comparisons by Rank and Percentile

The table below compares St. Clair County to the other 67 counties and county equivalents in Alabama by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 16 78th
Population Density # 15 79th
Diversity Index # 59 13th
Median Household Income # 6 93rd
Per Capita Income # 10 87th

Additional comparisons and rankings can be made with a VERY EASY TO USE Alabama Census Data Comparison Tool.