County · Alabama
St. Clair County, Alabama
St. Clair County, Alabama. St. Clair County had 98,206 residents in 2025 by the Census Bureau's estimate, up 7.3% since 2020, faster than Alabama (+3.3%). It holds 13 places (13 cities, villages and boroughs) and 24 census tracts. GEOID 01115.
St. Clair County is one of the 7 counties of the Birmingham, AL metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
98,206
Census Bureau estimate (no margin published)
2020 Census count: 91,103 · ACS 2020-2024: 94,166
Median household income
$77,463
±$4,349 (90% margin)
Alabama: $63,999
Median home value
$226,300
±$6,451 (90% margin)
Alabama: $209,900
Median gross rent
$1,084
±$66 (90% margin)
Alabama: $1,007
How many people live in St. Clair County, and is it growing?
The 2020 Census counted 91,103 residents in St. Clair County. The Census Bureau estimates 98,206 for July 1, 2025, up 7.3% since 2020, faster than Alabama (+3.3%). The 2020-2024 American Community Survey puts the population at 94,166 over 632 square miles of land.
| Measure | St. Clair County | Alabama | Change since 2015-2019 |
|---|---|---|---|
| Total population | 94,166 | 5,086,768 | +6,177 |
| Households | 35,107±497 | 1,997,247 | +3,071 |
| Average household size | 2.63±0.04 | 2.48 | no clear change |
| Housing units | 39,247±52 | 2,337,265 | +2,533 |
St. Clair County's population since 2000
From 64,742 in 2000 to 98,206 in 2025: up 51.7%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in St. Clair County?
St. Clair County holds 13 places: 13 cities, villages and boroughs (incorporated places). The largest is Moody with 13,559 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Moody | 13,170 | $86,627 |
|---|---|---|
| Pell City | 12,939 | $68,638 |
| Margaret | 5,106 | $101,802 |
| Odenville | 4,969 | $70,296 |
| Springville | 4,786 | $84,231 |
| Argo | 4,368 | $105,128 |
| Ashville | 2,346 | $69,362 |
| Riverside | 2,227 | $83,664 |
| Leeds | 12,324 | $69,737 |
| Ragland | 1,693 | $37,708 |
| Trussville | 26,123 | $123,275 |
| Steele | 992 | $72,386 |
| Vincent | 1,982 | $52,813 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in St. Clair County?
The median resident of St. Clair County is 41.2 years old; 22.2% are under 18 and 17.9% are 65 or older. The largest group is non-Hispanic white residents at 83.1%, then non-Hispanic Black residents at 10.0%. 1.7% of residents were born outside the United States.
| Measure | St. Clair County | Alabama | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.2±0.5 | 39.3 | +0.9 |
| Under 18 years | 22.2% | 22.2% | – |
| 65 years and over | 17.9%±0.1 pts | 17.8% | – |
| Hispanic or Latino (any race) | 3.0% | 5.6% | +0.6 pts |
| White alone, not Hispanic | 83.1%±0.2 pts | 63.4% | −2.8 pts |
| Black or African American alone, not Hispanic | 10.0%±0.5 pts | 25.6% | no clear change |
| Asian alone, not Hispanic | 0.6%±0.2 pts | 1.4% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.1%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.7%±0.6 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.3%±0.2 pts | 0.4% | – |
| Born outside the United States | 1.7%±0.4 pts | 4.0% | no clear change |
| Speak a language other than English at home (age 5+) | 3.3%±0.4 pts | 6.0% | – |
| Civilian veterans (age 18+) | 6.8%±0.7 pts | 7.7% | – |
| With a disability | 16.7%±1.1 pts | 16.5% | – |
| No health insurance coverage | 7.2%±0.9 pts | 9.2% | no clear change |
| High school graduate or higher (age 25+) | 87.8%±1.2 pts | 88.6% | – |
| Bachelor's degree or higher (age 25+) | 21.4%±1.4 pts | 28.4% | +5.3 pts |
| Graduate or professional degree (age 25+) | 7.0%±1.0 pts | 11.1% | – |
| Moved from another state in the past year | 1.3%±0.4 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in St. Clair County earn?
Half of St. Clair County's 35,107 households earn less than $77,463 a year (±$4,349), against $63,999 in Alabama. In 2015-2019 it was $71,759 in 2024 dollars; the margins of error cannot tell the two periods apart. 11.4% of residents live below the poverty line.
| Measure | St. Clair County | Alabama | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $77,463±$4,349 | $63,999 | no clear change |
| Mean household income | $91,073±$3,729 | $88,898 | – |
| Per capita income | $34,786±$1,274 | $36,087 | +$2,285 |
| People below the poverty line | 11.4%±1.4 pts | 15.6% | no clear change |
| Children under 18 below the poverty line | 15.9%±3.0 pts | 21.3% | no clear change |
| Households receiving SNAP | 11.0%±1.4 pts | 13.7% | – |
| Households with a broadband subscription | 91.1%±1.4 pts | 87.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in St. Clair County?
Owners occupy 82.6% of St. Clair County's occupied homes and renters 17.4%. The median owner-occupied home is valued at $226,300 by its owner (±$6,451). The median renter pays $1,084 a month including utilities, and 32.9% of renters pay 35% or more of their income on rent.
| Measure | St. Clair County | Alabama | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $226,300±$6,451 | $209,900 | +$35,666 |
| Median gross rent | $1,084±$66 | $1,007 | no clear change |
| Renters paying 35% or more of income on rent | 32.9%±5.4 pts | 39.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,516±$53 | $1,433 | – |
| Owner-occupied homes | 82.6%±1.8 pts | 70.2% | +2.7 pts |
| Housing units | 39,247±52 | 2,337,265 | +2,533 |
| Homeowner vacancy rate | 0.7%±0.4 pts | 1.1% | – |
| Rental vacancy rate | 3.5%±2.5 pts | 7.2% | – |
| Single-family detached homes | 71.6%±1.9 pts | 69.1% | – |
| Mobile homes | 22.1%±1.9 pts | 12.3% | – |
| Built 2020 or later | 4.1%±0.8 pts | 2.3% | – |
| Built 1939 or earlier | 1.4%±0.5 pts | 4.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is St. Clair County building?
Builders took permits for 411 new housing units across St. Clair County in 2025 (411 single-family), 4.2 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in St. Clair County get to work?
80.2% of St. Clair County's workers drive alone and 11.7% work from home. The average trip to work takes 30.7 minutes. The unemployment rate in 2020-2024 averaged 4.6%.
| Measure | St. Clair County | Alabama | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.2%±1.3 pts | 58.3% | – |
| Unemployment rate | 4.6%±0.9 pts | 4.7% | no clear change |
| Drove alone to work | 80.2%±1.9 pts | 80.6% | – |
| Carpooled | 6.7%±1.1 pts | 8.0% | – |
| Public transportation | 0.0%±0.1 pts | 0.3% | – |
| Walked | 0.5%±0.2 pts | 1.1% | – |
| Worked from home | 11.7%±1.8 pts | 8.8% | +9.5 pts |
| Mean travel time to work | 30.7 min±1.0 | 25.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are St. Clair County's census tracts?
St. Clair County is divided into 24 census tracts. Among those with a reliable estimate, median household income runs from $25,933 (Tract 405.08) to $118,621 (Tract 405.03).
All 24 census tracts of St. Clair County, with their figures
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does St. Clair County compare with Alabama's other counties?
| Measure | Rank |
|---|---|
| Population | 16th of 67 |
| Growth 2020-2025 | 5th of 67 |
| Residents per square mile | 15th of 67 |
| Median household income | 6th of 67 |
| Median home value | 8th of 67 |
| Median gross rent | 7th of 67 |
| Poverty rate | 61st of 67 |
| Bachelor's degree or higher | 20th of 67 |
| Median age | 35th of 67 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for St. Clair County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.