• county
  • FIPS 01115
  • Largest town: Pell City

St. Clair County, Alabama

St. Clair County had 96,927 residents in the Census Vintage 2024 estimate, on 631.6 square miles of land. It ranks 16th of 67 in Alabama by population and 42nd by land area.

Population
96,927
#16 of 67 in Alabama · #640 in US
Area
631.6 sq mi
#42 of 67 in Alabama · #1,519 in US
Density
153 / sq mi
#15 of 67 in Alabama · #687 in US
Median household income
$78,349
#4 of 67 in Alabama · #528 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

St. Clair County within Alabama. Pin: Montgomery.

Measure from here

Tools and pages that start from St. Clair County

St. Clair County population, land area and income

St. Clair County had 96,927 residents in the Census Vintage 2024 estimate, on 631.6 square miles of land. It ranks 16th of 67 in Alabama by population and 42nd by land area. That works out to 153.5 people per square mile, 1.6 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Alabama has 33,813 residents, so St. Clair County is 2.9 times that size.

Its SAIPE 2023 median household income of $78,349 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

96,927

3144th1st

640th of 3,144 (US)

Land area

632 sq mi

3144th1st

1519th of 3,144 (US)

Density

153.5 / sq mi

3144th1st

687th of 3,144 (US)

Median household income

$78,349

3143rd1st

528th of 3,143 (US)

Rank within Alabama (67)

Population

96,927

67th1st

16th of 67 (AL)

Land area

632 sq mi

67th1st

42nd of 67 (AL)

Density

153.5 / sq mi

67th1st

15th of 67 (AL)

Median household income

$78,349

67th1st

4th of 67 (AL)

How St. Clair County's population changed since 2020

St. Clair County gained 5,240 residents between the July 2020 and July 2024 estimates, a rise of 5.7%. That ranks 5th of 67 in Alabama for growth. The median Alabama county changed by +0.2%, and the state as a whole by +2.5%.

Since the April 2020 estimates base, St. Clair County recorded 4,285 births and 5,242 deaths, a natural change of -957. Net international migration added +118 and net domestic migration, people moving to or from other US counties, came to +6,220. The largest single component was domestic migration, which added 6,220 people.

91.7k202092.9k202193.9k202295.5k202396.9k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
4,285
Deaths
5,242
Net international migration
+118
Net domestic migration
+6,220
Change, July 2023 to July 2024
+1,440

Where St. Clair County is

The Census internal point of St. Clair County is at 33.719500, -86.311300. It sits in UTM zone 16N. The map shades Alabama's 67 county-equivalents by population change from 2020 to 2024, darker for faster growth, with St. Clair County outlined. Dots are towns of 1,000+ people with residents in it.

Clay County: +0.2%Baldwin County: +12.2%Coffee County: +5.2%Fayette County: -2.9%Chilton County: +4.9%Perry County: -8.7%Lamar County: -2.9%Morgan County: +2.2%Bibb County: +0.4%Butler County: -4.1%Barbour County: -2.5%Franklin County: -0.6%Chambers County: -2.2%Macon County: -6.7%Marshall County: +4.6%DeKalb County: +2.0%Russell County: -0.7%Geneva County: +2.1%Houston County: +1.9%Greene County: -7.5%Talladega County: -0.1%Monroe County: -3.3%Mobile County: -0.5%Covington County: +0.6%Cullman County: +5.1%Lauderdale County: +3.7%Shelby County: +5.4%Clarke County: -3.7%Lowndes County: -7.8%St. Clair County: +5.7%Choctaw County: -4.5%Blount County: +1.8%Dallas County: -6.9%Conecuh County: -3.8%Elmore County: +3.6%Autauga County: +4.3%Henry County: +5.6%Montgomery County: -1.1%Jefferson County: -1.5%Hale County: +2.3%Jackson County: +2.4%Madison County: +8.4%Washington County: -2.0%Bullock County: -3.2%Pike County: +0.7%Crenshaw County: -0.4%Dale County: +1.6%Lee County: +7.4%Cleburne County: +5.6%Tallapoosa County: -1.4%Lawrence County: +1.5%Pickens County: -2.4%Colbert County: +2.6%Winston County: +1.6%Marion County: +0.5%Calhoun County: +0.2%Etowah County: -0.2%Randolph County: +4.4%Wilcox County: -6.3%Tuscaloosa County: +3.7%Sumter County: -4.8%Walker County: +0.2%Cherokee County: +4.6%Escambia County: -0.2%Limestone County: +14.1%Coosa County: -0.5%Marengo County: -3.9%
Change 2020 to 2024
  1. < -3.2%
  2. < -0.5%
  3. < +1.6%
  4. < +4.3%
  5. ≥ +4.3%
no data

Orange pin: St. Clair County internal point. Dark pin: Montgomery.

Internal point

Decimal
33.719500, -86.311300
DMS
33°43'10.20"N 86°18'40.68"W
UTM
16N 563808.8E 3731268.3N
Geohash
djfxgfqn2
Plus code
865MPM9Q+RF

Towns in St. Clair County

13 incorporated places of 1,000+ people have residents in St. Clair County, 61,473 people together, or 63% of the county. Each figure counts only the part of the town inside St. Clair County; towns marked "part" extend into another county. The largest is Pell City with 14,094.

  1. 01Pell City14,094
  2. 02Moody13,596
  3. 03Margaret6,654
  4. 04Odenville5,711
  5. 05Springville5,392
  6. 06Argo (part)4,312
  7. 07Ashville2,402
  8. 08Riverside2,304
  9. 09Leeds (part)2,159
  10. 10Trussville (part)2,135
  11. 11Ragland1,709
  12. 12Steele1,003
  13. 13Clay (part)2
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering St. Clair County

The Census 2024 county adjacency file lists 6 neighbors for St. Clair County. The most populous is Jefferson County, AL, with 664,744 residents. Distances run between Census internal points in a straight line.

Distance to Montgomery and the nearest big city

Montgomery is 92.8 miles S of St. Clair County's internal point in a straight line. The nearest place of 100,000 or more is Birmingham, AL (population 196,357), 30.9 miles away. The nearest place of 10,000 or more is Pell City, AL (population 14,094), 11.3 miles away.

St. Clair County FIPS code

The FIPS code of St. Clair County is 01115: state code 01 for Alabama plus county code 115. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $78,349.

Questions people ask

What is the population of St. Clair County, Alabama?

The Census Vintage 2024 estimate for July 1, 2024 is 96,927. That is up 5,240 people (5.7%) from the July 2020 estimate of 91,687.

What is the FIPS code of St. Clair County?

01115. The first two digits (01) are Alabama; the last three (115) identify the county.

What is the largest town in St. Clair County?

Pell City, with 14,094 residents inside St. Clair County in 2024.

Which counties border St. Clair County?

6 county-equivalents border it in the Census 2024 adjacency file: Jefferson County, AL; Shelby County, AL; Calhoun County, AL; Etowah County, AL; Talladega County, AL; Blount County, AL.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.