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
Homeownership is the standout figure in St. Clair County: 82.5% of homes are owner-occupied, higher than the national rate. St. Clair County is a county in Alabama with a population of 92,903. It ranks #16 among counties in Alabama by population.
The typical household earns $78,993 a year, near the US median of $78,538. About 7.6% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $218,500, with typical rent around $1,077.
Roughly 19.9% of adults have a bachelor’s, below the national 35.0%. About 9.8% of the workforce is home-based, below the national 14.0%, and the average commute runs about 31 minutes each way.
The ownership rate anchors the housing story in St. Clair County, and tends to move with the age structure and home-value figures above.
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+
Largest cities in Alabama
Other counties in Alabama
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.