United States › Illinois › Williamsville CITY · 2020 ACS
Williamsville Illinois · 1,425 residents · 1.55 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2021 ACS 2022 ACS 2023 ACS 2024 ACS
The short version
Williamsville is home to 1,425 people in Illinois. Owners hold 84% of the housing stock. 1% of residents were born outside the United States. At a median age of 42.7, this is an older place than the country as a whole. That is roughly 26% ahead of the Illinois median. Home values have risen by half since 2000, reaching $162,900.
At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 42.7
US median: 38.8
More educated
37% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 35.8 in 2000
US average: 38.8
Population, 1990 – 2024
1K 1K 1K 2K 2K 1990 2000 2010 2020 2024 Williamsville Age distribution, 2020
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Section 02
Income & economy $86,326
+14%inflation adjusted, since 2000
from $50,238 in 2000
US average: $66,278
from $20,201 in 2000
US average: $35,364
Households earning $100K+
from 43.3% in 2009
US average: 43.9%
from 3.1% in 2000
US average: 12.8%
Workforce by industry, 2020
Public administration 8.9%
Agriculture, forestry, fishing 4.2%
Professional, scientific, technical 3.9%
Education & health services 2%
Transportation & warehousing 1.2%
Arts, entertainment, food 0.6%
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$162,900
+7%inflation adjusted, since 2000
from $101,700 in 2000
US average: $265,253
$803
+5%inflation adjusted, since 2000
from $507 in 2000
US average: $1,124
from 82.1% in 2000
16.0% rent
from 2.64 people in 2009
US average: 2.61
from 2.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 97.4%(1,402)
Hispanic / Latino 0.8%(12)
2020
White, non-Hispanic 93.8%(1,337)
Hispanic / Latino 1.7%(24)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 12 more ancestry groups with data from 23.6% in 2000
US average: 32.9%
High school or higher
from 87.8% in 2000
US average: 88.5%
from 5.3% in 2000
US average: 12.7%
Section 06
Commute & transportation from 13.0 min in 2000
US average: 26.9
from 88.7% in 2009
US average: 75.1%
from 1.8% in 2009
US average: 8.4%
Section 07
Work & employment from 4.7% in 2011
US average: 5.4%
from 71.9% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 38.4% in 2009
US average: 39.3%
Section 08
People & community from 1.3% in 2009
US average: 13.5%
from 2.9% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 2.9% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 29.3%(17)
Share of the 58 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Williamsville Head to head
Compare Williamsville to nearby cities WILLIAMSVILLE VS
Springfield
Income $66,064 −23%
Home value $162,100 same
Population 112,989 +7763%
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WILLIAMSVILLE VS
Lincoln
Income $57,340 −34%
Home value $124,300 −24%
Population 12,981 +803%
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WILLIAMSVILLE VS
Chatham
Income $106,773 +24%
Home value $243,200 +49%
Population 14,579 +915%
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WILLIAMSVILLE VS
Taylorville
Income $57,552 −33%
Home value $104,100 −36%
Population 10,522 +632%
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Frequently asked
How many people live in Williamsville, Illinois? Williamsville, Illinois has about 1,425 residents according to the 2020 American Community Survey.
What is the median household income in Williamsville, Illinois? The typical household in Williamsville, Illinois earns about $86,326 a year. Half of households make more than that, and half make less.
Is Williamsville, Illinois expensive? In Williamsville, Illinois, the median home is worth about $162,900, and the typical rent is about $803 a month.
How educated are people in Williamsville, Illinois? About 37.0% of adults age 25 and over in Williamsville, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Williamsville, Illinois? About 9.8% of people in Williamsville, Illinois live below the federal poverty line.
Has Williamsville, Illinois grown since 1990? Yes, Williamsville, Illinois has grown since 1990. The population has added about 285 residents, a change of about 25 percent over that period.
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