St. Clair township is located in St. Clair County Illinois. St. Clair township has a 2024 population of 35,976. St. Clair township is currently growing at a rate of 0.93% annually and its population has increased by 0.76% since the most recent census, which recorded a population of 35,704 in 2020.
The average household income in St. Clair township is $100,837 with a poverty rate of 10.97%. The median age in St. Clair township is 40.9 years: 38.5 years for males, and 43.4 years for females.
According to the most recent ACS, the racial composition of St. Clair township was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 23,412 | 65.76% |
| Black or African American | 8,518 | 23.93% |
| Two or more races | 1,859 | 5.22% |
| Asian | 1,021 | 2.87% |
| Other race | 638 | 1.79% |
| Native American | 154 | 0.43% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Black or African American
Two or more races
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 14,664 | 2.41 | 70.9 | 29.1 |
| Married | 6,738 | 3.16 | 88 | 12 |
| Non Family | 5,808 | 1.17 | 56.2 | 43.8 |
| Female | 1,698 | 3.49 | 62.8 | 37.2 |
| Male | 420 | 3.2 | 31.9 | 68.1 |
3.15
Average Family Size
2.41
Average Household Size
70.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 677 | 2.71% |
| Associates Degree | 2,735 | 10.96% |
| Bachelors Degree | 5,479 | 21.96% |
| Graduate Degree | 3,588 | 14.38% |
| High School Graduate | 6,211 | 24.89% |
| Less Than 9th Grade | 601 | 2.41% |
| Some College | 5,658 | 22.68% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 17,169 | 16,499 | 6,686 |
| Black | 5,559 | 5,132 | 1,451 |
| 2+ Races | 931 | 910 | 329 |
| Asian | 745 | 635 | 222 |
| Hispanic | 421 | 412 | 245 |
| Other Race | 245 | 236 | 182 |
| Native American | 136 | 95 | 55 |
The highest rate of high school graduation is among hispanic people with a rate of 97.86%.
The highest rate of bachelors degrees is among other race people with a rate of 74.29%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $62,188 | $83,588 | $56,335 |
| Graduate Degree | $76,341 | $99,474 | $68,359 |
| High School Graduate | $36,741 | $46,166 | $28,017 |
| Less Than 9th Grade | $0 | $64,836 | $0 |
| Overall | $51,236 | $59,519 | $44,127 |
| Some College | $44,891 | $54,447 | $41,208 |
$51,236
Average Earnings
$59,519
Average Male
$44,127
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
94.19% of St. Clair township residents speak only English, while 5.81% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 2.21% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 22,933 | 2,355 | 10.27% |
| Black | 8,333 | 1,335 | 16.02% |
| Multiple | 1,859 | 101 | 5.43% |
| Asian | 1,021 | 46 | 4.51% |
| Hispanic | 710 | 35 | 4.93% |
10.97%
Overall Poverty Rate
9.57%
Male Poverty Rate
12.34%
Female Poverty Rate
The race most likely to be in poverty in St. Clair township is Black, with 16.02% below the poverty level.
The race least likely to be in poverty in St. Clair township is Asian, with 4.51% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.23%. Among those working part-time, it was 14.3%, and for those that did not work, the poverty rate was 18.64%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 21.25% |
| High School | 15.85% |
| Some College | 7.12% |
| Bachelors or Greater | 3.35% |
rate
Rate | Poverty |
|---|---|
| Male Unemployed | 33.91% |
| Female Unemployed | 22.68% |
| Female Employed | 5.93% |
| Male Employed | 5.67% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $108,474 | $129,681 |
| Households | $76,643 | $100,837 |
| Married Families | $125,183 | $-999,999,999 |
| Non Families | $42,108 | $53,034 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
48.1%
Overall Marriage Rate
48.2%
Male Marriage Rate
48.1%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
3,240
Number of Veterans
2,963
Male Veterans
277
Female Veterans
War | Veterans |
|---|---|
| First Gulf War | 1,496 |
| Second Gulf War | 1,188 |
| Vietnam | 942 |
| Korea | 121 |
| World War II | 69 |
count
Age Group | Veterans |
|---|---|
| 35 to 54 | 869 |
| 65 to 74 | 854 |
| 55 to 64 | 706 |
| 75+ | 579 |
| 18 to 34 | 232 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 2,353 | 12.2% |
| Black | 734 | 11.48% |
| 2+ Races | 80 | 8.02% |
| Hispanic | 45 | 9.05% |
| Asian | 40 | 4.96% |
| Other Race | 33 | 7.69% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
1.3%
Veteran Poverty Rate
21.08%
Veteran Disability Rate
LaborForceParticipation
64.6%
Labor Force Participation
61.2%
Employment Rate
4.1%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
56.93%
Born in St. Clair township
95.79%
Native Born
4.21%
Foreign Born
1.29%
Non Citizen
2.92%
Naturalized
95.79% of St. Clair township residents were born in the United States, with 56.93% having been born in Illinois. 1.29% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 37,626 | 330 | 0.88% |
| 2028 | 37,296 | 330 | 0.89% |
| 2027 | 36,966 | 330 | 0.9% |
| 2026 | 36,636 | 330 | 0.91% |
| 2025 | 36,306 | 330 | 0.92% |
| 2024 | 35,976 | 330 | 0.93% |
| 2023 | 35,646 | 330 | 0.93% |
| 2022 | 35,316 | -251 | -0.71% |
| 2021 | 35,567 | -137 | -0.38% |
| 2020 | 35,704 | 611 | 1.74% |
| 2019 | 35,093 | -3 | -0.01% |
| 2018 | 35,096 | -151 | -0.43% |
| 2017 | 35,247 | -66 | -0.19% |
| 2016 | 35,313 | -96 | -0.27% |
| 2015 | 35,409 | -201 | -0.56% |
| 2014 | 35,610 | -139 | -0.39% |
| 2013 | 35,749 | -166 | -0.46% |
| 2012 | 35,915 | -90 | -0.25% |
| 2011 | 36,005 | 145 | 0.4% |
| 2010 | 35,860 | 0 | 0% |