St. Clair County, Alabama Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 16th-largest in Alabama
The population of St. Clair County, Alabama is 92,903 as of the 2023 American Community Survey, making it the 16th-largest county in Alabama. The median household income is $78,993, the median home value is $218,500, and the median age is 41.0.
The population of St. Clair County has grown 16.0% since 2010 (83,587 → 96,927), a +1.06% annualized rate.
92,903
Population
+1.06%
Annual growth
147
People / sq mi
$78,993
Median Income
$218,500
Median Home Value
St. Clair County covers 632 sq mi of land at 147.1 people per square mile.
About St. Clair County, AL
St. Clair County is a county in Alabama with a population of 92,903. It ranks #16 among counties in Alabama by population. The median age is 41.0, older than the national median. The population is 49.5% male and 50.5% female.
The median household income in St. Clair County is $78,993, above the US median of $74,580. 7.6% of residents live below the federal poverty level. Home values sit at a median of $218,500, with monthly rent averaging $1,077. The homeownership rate of 82.5% is higher than the national rate of 64.8%.
Educational attainment in St. Clair County reflects 19.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.8% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 31.2 minutes each way.
St. Clair County Population History (2010-2024)
The county of St. Clair County had a population of 83,587 in 2010 and 96,927 in 2024, a 16.0% growth over 14 years. The peak was 96,927 in 2024. Average annual growth rate: 1.06%.
96,927
Population (2024)
83,587
Population (2010)
96,927
Peak (2024)
1.06%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 83,587 |
| 2011 | 83,992 |
| 2012 | 84,779 |
| 2013 | 85,831 |
| 2014 | 86,014 |
| 2015 | 86,569 |
| 2016 | 87,342 |
| 2017 | 87,985 |
| 2018 | 88,842 |
| 2019 | 89,735 |
| 2020 | 91,687 |
| 2021 | 92,850 |
| 2022 | 93,879 |
| 2023 | 95,487 |
| 2024 | 96,927 |
Race & Ethnicity
| White | 84.3% |
| Black or African American | 9.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Age & Sex
41.0
Median Age
50.5%
Female
49.5%
Male
17.5%
Age 65+
Age Distribution
Children (under 15): 18.3% · Seniors (65+): 17.5%
Income & Poverty
| Median household income | $78,993+$16,966 vs state |
| Mean household income | $92,258 |
| Per-capita income | $34,937 |
| Poverty rate | 7.6%-3.7% vs state |
| Unemployment rate | 2.7% |
| Employment-to-population | 56.9% |
Top Industries by Employment
The largest employment sector in St. Clair County is professional & business services, accounting for 21.0% of workers.
How residents commute
0.0%
Drive alone
0.7%
Carpool
82.3%
Public transit
9.8%
Work from home
31.2 min
Avg commute
Housing
$218,500+$23,400 vs state
Median home value
$1,077
Median rent
82.5%
Homeownership rate
38,667
Total housing units
89.2%
Occupied
10.8%
Vacant
17.5%
Renter-occupied
Social & access
92.7%
With health insurance
95.0%
With broadband internet
21.3%
Foreign-born
6.6%
Veterans (18+)
15.8%
With a disability
97.0%
Speak language other than English at home
Education
87.6%
High School+
19.9%
Bachelor's+
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Part of Alabama
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County rankings
Frequently Asked Questions
St. Clair County, Alabama has a population of 92,903 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 16th-largest county in Alabama. Population density is 147 people per square mile.
The population of St. Clair County has grown 16.0% since 2010 (83,587 → 96,927), a +1.06% annualized rate.
The median household income in St. Clair County, Alabama is $78,993, with mean (average) household income of $92,258 and per-capita income of $34,937. 7.6% of residents live below the federal poverty level.
In St. Clair County, the largest racial and ethnic groups are White (84.3%), Black or African American (9.9%), Hispanic or Latino (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in St. Clair County, Alabama is 41.0 years. Residents are 50.5% female and 49.5% male.
The median home value in St. Clair County is $218,500 and median monthly rent is $1,077. 82.5% of occupied housing units are owner-occupied. The county has 38,667 total housing units, 10.8% of which are vacant.
The largest employment sector in St. Clair County, Alabama is professional, scientific, and management services, employing 21.0% of workers. The unemployment rate is 2.7%.
Huntsville is among the largest cities associated with St. Clair County, Alabama, with a population of 218,814.
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Statewide data for Alabama
Population, race, income, age, and trends across Alabama
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.