Population Demographics for St Clair County, Illinois in 2019, 2018



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Population Demographics by Race

RacePopulation% of Total
Total Population270,056100
White174,45864
Black or African American82,30230
Hispanic or Latino8,7853
Two or More Races6,0082
Asian3,2761
Some Other Race3,1331
American Indian652Below 1%
Three or more races481Below 1%
Native Hawaiian Pacific Islander227Below 1%

Population Demographics by Race and gender.

MaleFemaleTotal
Total Population129,976140,080270,056
White85,75188,707174,458
Black or African American37,94844,35482,302
Hispanic or Latino4,5224,2638,785
Two or More Races2,8773,1316,008
Asian1,2662,0103,276
Some Other Race1,7111,4223,133
American Indian316336652
Three or more races203278481
Native Hawaiian Pacific Islander107120227

Relevant Related Information

Demographic population totals

Total population in St Clair County

 
Total Population:270,056
Male Population:129,976
Female Population:140,080

Demographic median age by sex

Median age in St Clair County

 
Both sexes36
Male35
Female38

Demographic sex by age for the population in households

Population in households in St Clair County

 
Total Population:265,605
Male Population:127,411
Under 5 years:9,405
5 to 9 years:9,565
10 to 14 years:9,613
15 to 17 years:6,257
18 and 19 years:3,588
20 years:1,665
21 years:1,640
22 to 24 years:4,844
25 to 29 years:8,600
30 to 34 years:7,957
35 to 39 years:8,141
40 to 44 years:8,386
45 to 49 years:9,950
50 to 54 years:9,734
55 to 59 years:8,270
60 and 61 years:2,724
62 to 64 years:3,716
65 and 66 years:1,946
67 to 69 years:2,518
70 to 74 years:3,144
75 to 79 years:2,582
80 to 84 years:1,938
85 years and over:1,228
Female Population:138,194
Under 5 years:8,947
5 to 9 years:9,084
10 to 14 years:9,531
15 to 17 years:6,035
18 and 19 years:3,462
20 years:1,657
21 years:1,703
22 to 24 years:5,343
25 to 29 years:9,188
30 to 34 years:8,908
35 to 39 years:9,021
40 to 44 years:9,281
45 to 49 years:10,567
50 to 54 years:10,578
55 to 59 years:9,092
60 and 61 years:3,011
62 to 64 years:4,018
65 and 66 years:2,217
67 to 69 years:2,950
70 to 74 years:4,181
75 to 79 years:3,657
80 to 84 years:3,041
85 years and over:2,722

Demographic average population of home by age

Average household size in St Clair County

 
Total:2
Under 18 years:0
18 years and over:1

Demographic household type

Number of occupied homes in St Clair County

 
Total:105,045
Family led homes:70,689
Husband-wife family:46,846
Other family:23,843
Population of male led with no wife present:5,254
Population female led with no husband present:18,589
Population of Nonfamily homes:34,356
Population living alone:28,916
Population not living alone:5,440

Demographic population of homes with people under 18 years old by type

Total occupied homes in St Clair County with people under 18 years old:

 
Total:105,045
Population of homes with one or more people under 18 years:36,427
Population of family homes:36,088
Husband-wife family:20,638
Under 6 years only:4,883
Under 6 years and 6 to 17 years:4,332
6 to 17 years only:11,423
Other family:15,450
Male householder, no wife present:2,974
Under 6 years only:808
Under 6 years and 6 to 17 years:472
6 to 17 years only:1,694
Female led with no husband present:12,476
Under 6 years only:2,757
Under 6 years and 6 to 17 years:2,844
6 to 17 years only:6,875
Nonfamily households:339
Male led households:260
Under 6 years only:65
Under 6 years and 6 to 17 years:22
6 to 17 years only:173
Female led householder:79
Under 6 years only:25
Under 6 years and 6 to 17 years:7
6 to 17 years only:47
Households with no people under 18 years:68,618
Family households:34,601
Husband-wife family:26,208
Other family:8,393
Male led with no wife present:2,280
Female led with no husband present:6,113
Nonfamily households:34,017
Male led householder:15,907
Female led householder:18,110

Demographic type of home by age of owner-renter

Total number led homes in St Clair County, by type

 
Total Home Population:105,045
Population of Family homes:70,689
Population of 15 to 24 year olds:2,425
Population of 25 to 34 year olds:11,829
Population of 35 to 44 year olds:15,099
Population of 45 to 54 year olds:16,882
Population of 55 to 59 year olds:6,921
Population of 60 to 64 year olds:5,565
Population of 65 to 74 year olds:6,768
Population of 75 to 84 year olds:4,158
Population of 85 year olds and over:1,042
Population of Nonfamily Homes:34,356
Population of 15 to 24 year olds:1,947
Population of 25 to 34 year olds:4,810
Population of 35 to 44 year olds:4,038
Population of 45 to 54 year olds:6,526
Population of 55 to 59 year olds:3,432
Population of 60 to 64 year olds:2,915
Population of 65 to 74 year olds:4,555
Population of 75 to 84 year olds:4,088
Population of 85 year olds and over:2,045

Demographic population of homes with people 60 year olds and over

households in St Clair County containing people over 60

 
Total Population:105,045
Population of homes with one or more people 60 years and over:33,717
1-person household:12,834
2-or-more-person household:20,883
Family households:19,953
Nonfamily households:930
Population of homes with no people 60 years and over:71,328
1-person household:16,082
2-or-more-person household:55,246
Family homes:50,736
Nonfamily homes:4,510

Demographic population of multigenerational homes

homes in St Clair County with multiple generations.

 
Total Population:105,045
Home has three or more generations:4,583
Home does not have three or more generations:100,462

Demographic presence of unmarried partner of home owner-renter

Unmarried population in St Clair County under 18 years old in homes

 
Total Population:68,398
Unmarried partner of home lead present:6,135
In family homes:5,815
Population of male led and male partner homes:105
Population of male led and female partner households:2,069
Population of female led and female partner households:232
Population of female led and male partner households:3,409
In nonfamily homes:320
Population of male led and male partner homes:2
Population of male led and female partner homes:283
Population of female led and female partner homes:10
Population of female led and male partner homes:25
No unmarried partner of home lead present:62,263
In family homes:62,108
Population of husband-wife family homes:39,021
Population of male lead with no wife present, family homes:2,746
Population of female lead with no husband present, family homes:20,341
In nonfamily homes:155

Demographic population in families by age

Population in families living in St Clair County

 
Total Population:218,289
Population Under 18 years:67,350
Population 18 years and over:150,939

Demographic tenure of people in homes

How long in St Clair County have lived in one place.

 
Total:105,045
Population of Owner occupied homes:69,646
Family home:51,105
Nonfamily homess:18,541
Male led home:8,315
Living alone:6,649
Not living alone:1,666
Female led home:10,226
Living alone:9,143
Not living alone:1,083
Population of Renter occupied homes:35,399
Family run homes:19,584
Husband-wife family:7,312
Other family:12,272
Male led with no wife present:2,083
Female led with no husband present:10,189
Nonfamily Homes:15,815
Male led homes:7,852
Male living alone:6,289
Male not living alone:1,563
Female led homes:7,963
Females living alone:6,835
Females not living alone:1,128