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CITY · 2000 CENSUS

Williamsville

Illinois · 1,439 residents · 1.55 sq mi
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The short version

Williamsville is a city of 1,439 people in Illinois. Owners hold 82% of the housing stock. Poverty is uncommon here, at 3.1% of residents. The population is up 26% since 1990. The median household earns $50,238, about 18% above the national median. Home values have risen by half since 1990, reaching $101,700.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 35.8
US median: 35.2
Average education
24% hold a bachelor's degree
US average: 24%
Less affordable
home values up 28%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
1,439
+26%since 1990
from 1,140 in 1990
1990 – 2025
Median age
35.8
+6%since 1990
from 33.8 in 1990
US average: 35.2
Land area
1.55 sq mi
Population, 1990 – 2024
1K1K1K2K2K19902000201020202024Williamsville
20241K
1990201020202024
Age distribution, 2000
Under 56.8%(98)
US avg: 6.8%
5 to 98.5%(122)
US avg: 7.3%
10 to 148.8%(127)
US avg: 7.3%
15 to 197.2%(104)
US avg: 7.2%
20 to 245.1%(73)
US avg: 6.7%
25 to 3412%(172)
US avg: 14.2%
35 to 4419.1%(275)
US avg: 16%
45 to 5411.7%(168)
US avg: 13.4%
55 to 647.4%(106)
US avg: 8.6%
65 to 747.8%(112)
US avg: 6.5%
75 to 844.7%(68)
US avg: 4.4%
85 and over1%(14)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$50,238
+7%inflation adjusted, since 1990
from $35,658 in 1990
US average: $42,589
1990 – 2024
Per capita income
$20,201
+50%since 1990
from $13,445 in 1990
US average: $21,522
Poverty rate
3.1%
−0.7 ptssince 1990
from 3.8% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$101,700
+28%inflation adjusted, since 1990
from $60,500 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$507
+8%inflation adjusted, since 1990
from $355 in 1990
US average: $602
Owner-occupied
82.1%
+11.3 ptssince 1990
from 70.8% in 1990
17.9% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic99.6%(1,136)
Black0%(0)
Hispanic / Latino0.4%(4)
Asian0%(0)
2000
White, non-Hispanic97.4%(1,402)
Black0.6%(8)
Hispanic / Latino0.8%(12)
Asian0.1%(2)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1.6%(21)
Asian origin
Vietnamese0.9%(12)
Uzbek0.2%(2)
Pacific Islander origin
Chamorro0.2%(2)
Ancestry
German21.7%(285)
English13.6%(179)
Irish10%(131)
American6.8%(90)
Italian3.1%(41)
Swiss2.7%(36)
Dutch1.8%(23)
Scottish1.8%(23)
Lithuanian1.1%(14)
Swedish1.1%(14)
French0.9%(12)
Canadian0.6%(8)
+ 9 more ancestry groups with data
Welsh0.5%(7)
Czech0.5%(6)
Norwegian0.4%(5)
Polish0.4%(5)
Arab0.2%(3)
Lebanese0.2%(3)
Russian0.2%(3)
Section 05

Education

Bachelor's degree or higher
23.6%
+10.4 ptssince 1990
from 13.2% in 1990
US average: 24.4%
High school or higher
87.8%
+8.8 ptssince 1990
from 79.0% in 1990
US average: 80.3%
Graduate degree
5.3%
+1.8 ptssince 1990
from 3.5% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
13.0 min
−33%since 1990
from 19.4 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married21%(113)
Married74.6%(402)
Widowed0%(0)
Divorced4.5%(24)
Women 15+
Never married17.3%(99)
Married65.1%(373)
Widowed10.8%(62)
Divorced6.8%(39)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
1.9%
−1.0 ptssince 2013
from 2.9% in 2013
US average: 8.4%
Employer-based
72.1%
−6.4 ptssince 2020
from 78.5% in 2020
US average: 54.8%
Direct-purchase
11.3%
+0.4 ptssince 2020
from 10.9% in 2020
US average: 13.8%
Medicare
17.8%
+2.4 ptssince 2020
from 15.4% in 2020
US average: 18.4%
Medicaid
7.9%
−1.3 ptssince 2020
from 9.2% in 2020
US average: 20.9%
VA health care
1.8%
+0.3 ptssince 2020
from 1.5% in 2020
US average: 2.2%
Any private
84.0%
−2.6 ptssince 2020
from 86.6% in 2020
US average: 67.1%
Any public
24.6%
+0.4 ptssince 2020
from 24.2% in 2020
US average: 36.7%

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, 2024
Gulf War (2001 or later)22.9%(16)
US avg: 26.4%
Gulf War (1990s)32.9%(23)
US avg: 24.3%
Vietnam era25.7%(18)
US avg: 33.1%
Korean War4.3%(3)
US avg: 4.5%
World War II0%(0)
US avg: 1%

Share of the 70 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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+32%
Home value$162,100+59%
Population112,989+7763%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Lincoln
Income$57,340+14%
Home value$124,300+22%
Population12,981+803%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Chatham
Income$106,773+113%
Home value$243,200+139%
Population14,579+915%
SEE FULL COMPARISON →
WILLIAMSVILLE VS
Taylorville
Income$57,552+15%
Home value$104,100+2%
Population10,522+632%
SEE FULL COMPARISON →
Frequently asked

How many people live in Williamsville, Illinois?

Williamsville, Illinois has about 1,439 residents according to the 2000 Census.

What is the median household income in Williamsville, Illinois?

The typical household in Williamsville, Illinois earns about $50,238 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 $101,700, and the typical rent is about $507 a month.

How educated are people in Williamsville, Illinois?

About 23.6% 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 3.1% 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 299 residents, a change of about 26 percent over that period.

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

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