Williamson demographics profile

Population density (sq mi)15522291
Median age34.837.437.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)68%55%55%
Families w/ Kids under 1856%44%43%
Speak English99%77%79%
Speak Spanish0%13%13%
Williamson, IL has a population of 233 and is the 23,752nd largest city in the United States. The population density is 155 per sq mi which is 30% lower than the Illinois average and 71% higher than the national average. The median age in Williamson is 35 which is approximately 7% lower than the Illinois average of 37. In Williamson, 68% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 81% of Williamson residents were born in Illinois, 18% were born out of state, 0% were born outside of the United States and 1% were foreign born.

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Did you know?

  • The population density in Williamson is 30% lower than Illinois.
  • The median age in Williamson is 7% lower than Illinois.
  • In Williamson 96.14% of the population is White.
  • In Williamson 2.15% of the population is Black or African American.
  • In Williamson 0.00% of the population is Asian.

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Williamson population breakdown by race

Black or African American2.15%14.30%12.63%
American Indian0.00%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race1.72%2.34%3.06%
Other race0.00%5.86%4.75%
In Williamson, 0.0% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Williamson age breakdown

Marital status

Age of children in married couples

Source: The Williamson, IL demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).