Williamson County, Illinois Population 2020

Williamson County, Illinois's estimated population is 67,107 with a growth rate of -0.55% in the past year according to the most recent United States census data. Williamson County, Illinois is the 22nd largest county in Illinois.

Year Population Growth Growth Rate
201867,056-51-0.08%
201767,107-373-0.55%
201667,480400.06%
201567,440300.04%
201467,410-37-0.05%
201367,4476731.01%
201266,774480.07%
201166,7262940.44%
201066,4328,69915.07%
199057,7331,1952.11%
198056,5387,51715.33%
197049,0212,9046.30%
196046,117-2,504-5.15%
195048,621-2,803-5.45%
194051,424-2,456-4.56%
193053,880-7,212-11.81%
192061,09215,99435.46%
191045,09817,30262.25%
190027,7965,57025.06%
189022,2262,90215.02%
188019,3241,99511.51%
187017,3295,12441.98%
186012,2054,98969.14%
18507,2162,75961.90%
18404,4570.00%

How Many People Live in Williamson County, Illinois?

67,107

Population by Race

Race Population Percentage
White61,47491.34%
Black or African American2,8434.22%
Two or More Races1,5792.35%
Asian7441.11%
Some Other Race4880.73%
American Indian and Alaska Native1640.24%
Native Hawaiian and Other Pacific Islander70.01%

Williamson County, Illinois Population Pyramid 2020

Williamson County, Illinois Median Age

40.9


Total

40.1


Male

42.1


Female

Williamson County, Illinois Adults

There are 52,555 adults, (12,186 of whom are seniors) in Williamson County, Illinois.

Williamson County, Illinois Age Dependency

66.7

Age Dependency Ratio

30.2

Old Age Dependency Ratio

36.5

Child Dependency Ratio

Williamson County, Illinois Sex Ratio

Female

33,692

50.06%

Male

33,607

49.94%

Williamson County, Illinois Households and Families

Williamson County, Illinois Renter vs Owner Occupied by Household Type

Williamson County, Illinois Household Types

Type Owner Renter
Married87.5%12.5%
All69.9%30.1%
Male59.3%40.7%
Non Family54.7%45.3%
Female50.5%49.5%

69.9%

Rate of Home Ownership

Type Count Average Size Owned
All27,0892.4169.9
Married12,8092.9487.5
Non Family9,7621.2554.7
Female3,3793.4250.5
Male1,1393.3559.3

2.98

Average Family Size

2.41

Average Household Size

5.1%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Williamson County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade1,3542.85%
9th to 12th Grade2,8265.95%
High School Graduate14,56730.65%
Some College12,66926.66%
Associates Degree5,37611.31%
Bachelors Degree6,34113.34%
Graduate Degree4,3949.25%

Williamson County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White43,73140,1859,924
Black1,7941,653310
Hispanic941717217
Multiple Races569530117
Asian519333202
Other Race36523866
Native American1629631
Islander77

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 38.92%.

Name Average Male Female
Overall$35,046$42,671$29,493
Less Than High School$18,381$20,778$14,500
High School Grad$26,460$31,772$22,089
Some College$33,610$42,399$26,386
Bachelors Degree$47,914$54,844$38,575
Graduate Degree$62,500$76,096$55,969

$35,046

Average Earnings

$42,671

Average Male

$29,493

Average Female

Williamson County, Illinois Language

Williamson County, Illinois Language by Age

Williamson County, Illinois Language

96.76% of Williamson County, Illinois residents speak only English, while 3.24% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.73% of the population.

Williamson County, Illinois Poverty

Williamson County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White59,0267,82213.25%
Black2,28082736.27%
Multiple1,50261440.88%
Hispanic1,57540025.40%
Asian70911215.80%
Other4395512.53%
Native931010.75%
Islander77100.00%

15.02%

Overall Poverty Rate

13.62%

Male Poverty Rate

16.36%

Female Poverty Rate

Poverty in Williamson County, Illinois

The race most likely to be in poverty in Williamson County, Illinois is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Williamson County, Illinois is Native, with 10.75% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.49%. Among those working part-time, it was 20.65%, and for those that did not work, the poverty rate was 19.17%.

Name Poverty
Less Than High School28.14%
High School14.15%
Some College10.41%
Bachelors or Greater4.15%

Williamson County, Illinois Income

Williamson County, Illinois Income by Household Type

Name Median Mean
Households$49,053$64,486
Families$64,975$79,217
Married Families$76,152$90,584
Non Families$26,523$36,170

Williamson County, Illinois Marital Status

Williamson County, Illinois Marital Status

Marriage Rates

49.6%

Overall Marriage Rate

50.2%

Male Marriage Rate

48.9%

Female Marriage Rate

Williamson County, Illinois Married by Age and Sex

Williamson County, Illinois Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Williamson County, Illinois Marital Status by Race

Williamson County, Illinois Veterans

5,265

Number of Veterans

4,914

Male Veterans

351

Female Veterans

War Veterans
Vietnam2,146
First Gulf War1,010
Second Gulf War627
Korea352
World War II129

Williamson County, Illinois Veterans by Race

Name Veterans % of Total
White4,96010.26%
Black1878.03%
2 or More8913.01%
Hispanic887.58%
Other265.82%
Indian31.85%

Williamson County, Illinois Veterans by Education

7.22%

Veteran Poverty Rate

36.78%

Veteran Disability Rate

Williamson County, Illinois Employment Status

56.9%

Labor Force Participation

53.5%

Employment Rate

5.9%

Unemployment Rate

Williamson County, Illinois Place of Birth

Origin of Non Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

77.66%

Born in Illinois

98.31%

Native Born

1.69%

Foreign Born

0.76%

Non Citizen

Place of Birth

98.31% of Williamson County, Illinois residents were born in the United States, with 77.66% having been born in Illinois. 0.76% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Population of Cities in Williamson County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Carbondale 2642626179-247-0.93%
Marion 17216178266103.54%
Herrin12523129504273.41%
Carterville550258433416.20%
Johnston City35573488-69-1.94%
Crainville1273140212910.13%
Cambria12281271433.50%
Energy11461142-4-0.35%
Hurst79579610.13%
Pittsburg572559-13-2.27%
Creal Springs543532-11-2.03%
Stonefort 297294-3-1.01%
Freeman Spur 292290-2-0.68%
Bush275274-1-0.36%
Colp225224-1-0.44%
Spillertown203202-1-0.49%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990