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CITY

Williamsville

Illinois · 1,437 residents (2025 est.) · 1.548 sq mi
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The short version

Williamsville is wealthier than most US places, with a median household income of $106,731. Population has declined 9% since 2000. 45% of adults hold a bachelor's degree or higher. Median home value has more than doubled since 2000, reaching $199,300. It sits in the top 10% of US cities for household income. Households here earn about 28% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 43.4
US median: 38.9
More educated
45% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
1,314
−9%since 2000
from 1,439 in 2000
1990 – 2025
Population density
849 / sq mi
−9%since 2000
from 930 / sq mi in 2000
US average: 281
Median age
43.4
+21%since 2000
from 35.8 in 2000
US average: 38.9

PEP 2025 EST:1,437 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
1K1K1K2K2K1990201020202024Williamsville
20241K
1990201020202024
Section 02

Income & economy

Median household income
$106,731
+17%inflation adjusted, since 2000
from $50,238 in 2000
US average: $82,259
1990 – 2024
Per capita income
$49,846
+147%since 2000
from $20,201 in 2000
US average: $44,673
Households earning $100K+
67.7%
+24.4 ptssince 2009
from 43.3% in 2009
US average: 53.3%
Poverty rate
6.9%
+3.8 ptssince 2000
from 3.1% in 2000
US average: 12.5%
Income inequality (Gini)
0.375
+3%since 2010
from 0.365 in 2010
US average: 0.476
Workforce by industry, 2024
Other services12.5%
US avg: 6.7%
Public administration12.5%
US avg: 4.8%
Information8.2%
US avg: 10.8%
Wholesale trade5.1%
US avg: 6.9%
Finance & insurance3.6%
US avg: 5.9%
Arts, entertainment, food3%
US avg: 1.9%
Retail trade2.8%
US avg: 9.9%
Professional, scientific, technical2.8%
US avg: 5.1%
Transportation & warehousing1.6%
US avg: 2.2%
Education & health services0.7%
US avg: 0.9%
Agriculture, forestry, fishing0.4%
US avg: 1.6%
Construction0.4%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$199,300
+8%inflation adjusted, since 2000
from $101,700 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$943
+2%inflation adjusted, since 2000
from $507 in 2000
US average: $1,442
Owner-occupied
88.1%
+6.0 ptssince 2000
from 82.1% in 2000
11.9% rent
Vacancy rate
2.2%
+0.5 ptssince 2009
from 1.7% in 2009
US average: 10.0%
Owner cost-burdened
21.6%
+5.2 ptssince 2009
from 16.4% in 2009
US average: 22.9%
Renter cost-burdened
0.0%
−28.8 ptssince 2009
from 28.8% in 2009
US average: 47.4%
Afford Score
1.9
−8%since 2000
from 2.0 in 2000
1990 – 2024
Gentrification Score
58
RELATED:See current rent listings in Williamsville on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.4%(1,402)
Black0.6%(8)
Hispanic / Latino0.8%(12)
Asian0.1%(2)
Other0%
Diversity Score3.8%(55)
2024
White, non-Hispanic86.8%(1,140)
Black1.7%(22)
Hispanic / Latino2.1%(28)
Asian1.6%(21)
Other7.8%(103)
Diversity Score30%(394)
Diversity Score
30
+686%since 2000
from 4 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
45.2%
+21.6 ptssince 2000
from 23.6% in 2000
US average: 35.6%
High school or higher
92.0%
+4.2 ptssince 2000
from 87.8% in 2000
US average: 89.6%
Graduate degree
16.0%
+10.8 ptssince 2000
from 5.3% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
25.4 min
+96%since 2000
from 13.0 min in 2000
US average: 26.5
Drive alone to work
76.9%
−11.8 ptssince 2009
from 88.7% in 2009
US average: 68.9%
Carpooled to work
5.6%
−2.6 ptssince 2009
from 8.2% in 2009
US average: 8.5%
Public transit
0.0%
−0.5 ptssince 2009
from 0.5% in 2009
US average: 3.2%
Worked from home
15.8%
+14.3 ptssince 2009
from 1.5% in 2009
US average: 15.0%
Walked to work
0.5%
−0.6 ptssince 2009
from 1.1% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
2.8%
+1.1 ptssince 2009
from 1.8% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
1.0%
−3.7 ptssince 2011
from 4.7% in 2011
US average: 5.2%
Labor force participation
66.3%
−5.6 ptssince 2011
from 71.9% in 2011
US average: 63.5%
Self-employed
24.2%
+1.9 ptssince 2009
from 22.3% in 2009
US average: 13.1%
Management & professional
56.0%
−12.3 ptssince 2009
from 68.3% in 2009
US average: 42.5%
Section 08

People & community

Male
51.0%
+3.0 ptssince 2009
from 48.0% in 2009
Female
49.0%
−3.0 ptssince 2009
from 52.0% in 2009
Foreign born
2.9%
+1.6 ptssince 2009
from 1.3% in 2009
US average: 14.1%
Veterans
7.2%
−38.9 ptssince 2009
from 46.1% in 2009
US average: 6.2%
With a disability
9.5%
+0.8 ptssince 2012
from 8.7% in 2012
US average: 13.3%
Uninsured
1.9%
−95.2 ptssince 2013
from 97.1% in 2013
US average: 8.4%
Broadband at home
90.9%
+3.8 ptssince 2017
from 87.1% in 2017
US average: 91.0%
English only at home
95.7%
−2.7 ptssince 2016
from 98.4% in 2016
US average: 77.7%
Spanish at home
2.1%
+0.7 ptssince 2016
from 1.4% in 2016
US average: 13.6%
Drill deeper

Places similar to Williamsville

North Redington Beach
Pop 1,444
Redington Beach
Pop 1,355
Indian Shores
Pop 1,167
Lincoln
Pop 1,873
Places similar to Williamsville
Head to head

Compare Williamsville to nearby cities

WILLIAMSVILLE VS
Springfield
Income$66,064−38%
Home value$162,100−19%
Population112,989+7763%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Lincoln
Income$57,340−46%
Home value$124,300−38%
Population12,981+803%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Chatham
Income$106,773same
Home value$243,200+22%
Population14,579+915%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Taylorville
Income$57,552−46%
Home value$104,100−48%
Population10,522+632%
SEE FULL COMPARISON →
Frequently asked

How many people live in Williamsville, Illinois?

Williamsville, Illinois has about 1,314 residents according to the 2024 American Community Survey.

What is the median household income in Williamsville, Illinois?

The typical household in Williamsville, Illinois earns about $106,731 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 $199,300, and the typical rent is about $943 a month.

How educated are people in Williamsville, Illinois?

About 45.2% 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 6.9% 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 174 residents, a change of about 15 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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