Population
98,206
2025
+7.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
St. Clair County had an estimated 98,206 residents in 2025, up 7.1% (6,503 more people) since 2020. That is faster than Alabama as a whole (+3.2%), and the 6th fastest growth of 67 counties in Alabama.
Data as of 2025 · updated
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In the St. Clair County report
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98,206
2025
+7.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
+1,247
2025
12.7 per 1,000 residents
+7,227 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
2.3%
2025
−0.5 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
411
2025
−20.5% since 2021
4.2 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$77,463
2020–24
+23.9% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
18,213
2023
−0.3% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration added 1,247 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 18,213 paid employees in mid-March 2023, −0.3% since 2018 (County Business Patterns).
Unemployment averaged 2.3% in 2025, 0.5 points lower than in 2019 (before the pandemic).
Builders were authorized to start 411 new homes in 2025, or 4.2 per 1,000 residents.
Median household income was $77,463 in the 2020–24 American Community Survey, +23.9% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 374th.
Part of the Birmingham, AL metro area.
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| Year | Population | Change |
|---|---|---|
| 2025 | 98,206 | +1,160 |
| 2024 | 97,046 | +1,468 |
| 2023 | 95,578 | +1,664 |
| 2022 | 93,914 | +1,016 |
| 2021 | 92,898 | +1,195 |
| 2020 | 91,703 | – |
Census Bureau population estimates, July 1 of each year.
St. Clair County grew by 6,503 people since 2020; the largest part came from domestic migration (+7,227).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −96 | −911 | |
| International migrationfrom and to other countries | +11 | +136 | |
| Domestic migrationfrom and to other U.S. counties | +1,247 | +7,227 | |
| Census adjustmentbalancing residual | −2 | +51 | |
| Total change | +1,160 | +6,503 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Alabama | Among U.S. counties |
|---|---|---|
| Population growth | 6th of 67 | 374th of 3,107 |
| Net domestic migration per 1,000 residents | 7th of 67 | 362nd of 3,108 |
| Private-sector job growth | 38th of 67 | 1,922nd of 3,092 |
| Median household income | 6th of 67 | 695th of 3,107 |
| Lowest unemployment rate | 4th of 67 | 72nd of 3,108 |
| New homes permitted per 1,000 residents | 8th of 67 | 775th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for St. Clair County, AL as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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St. Clair County grew faster than all 6 of its neighbouring counties (+7.1%, 2020–25).
Only Shelby County had a higher median household income (2020–24) among its 6 neighbouring counties; St. Clair County's was $77,463.
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| St. Clair County, AL This county | 98,206 | +7.1% | 12.7 | 4.2 | $77,463 |
| Talladega County, AL | 81,603 | +0.3% | 4.1 | 2.4 | $57,776 |
| Blount County, AL | 60,156 | +1.8% | 1.3 | 0.3 | $64,190 |
| Etowah County, AL | 103,886 | +0.4% | 6.1 | 1.2 | $54,563 |
| Shelby County, AL | 238,552 | +6.5% | 7.2 | 5.5 | $97,961 |
| Jefferson County, AL | 665,742 | −1.3% | −4.5 | 3.6 | $66,388 |
| Calhoun County, AL | 115,834 | −0.3% | −0.6 | 1.2 | $55,029 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
Yes. Its population grew 7.1% between 2020 and 2025, about 6,503 more people (Census Bureau population estimates). Alabama as a whole changed +3.2% over the same years. That ranks 6th of 67 counties in Alabama for population growth.
On net, about 1,247 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
It averaged 2.3% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 98,206 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 18,213 paid employees in mid-March 2023, −0.3% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Alabama county pages carry the public federal growth figures.
Email me when St. Clair County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.