Williamsville, IL Profile: Facts & Data

Williamsville, Illinois - Basic Facts

The Village of Williamsville had a population of 1,466 as of July 1, 2024.

The primary coordinate point for Williamsville is located at latitude 39.9542 and longitude -89.5487 in Sangamon County. The formal boundaries for the Village of Williamsville encompass a land area of 1.26 sq. miles and a water area of 0 sq. miles. Sangamon County is in the Central time zone (GMT -6).

The Village of Williamsville has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Williamsville is located within Township of Williams, a minor civil division (MCD) of Sangamon County.

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Williamsville, IL Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	1,466 (100%)
Population in Households	1,466 (100.0%)
Population in Families	1,239 (84.5%)
Population in Group Quarters¹	0
Population Density	947
Diversity Index²	15


INCOME
Median Household Income	$122,793
Average Household Income	$154,080
% of Income for Mortgage⁴	12%
Per Capita Income	$62,010
Wealth Index⁵	144
Socioeconomic Status Index⁶	Moderate (60.8)

HOUSING
Total HU (Housing Units)	630 (100%)
Owner Occupied HU	515 (81.7%)
Renter Occupied HU	75 (11.9%)
Vacant Housing Units	40 ( 6.3%)
Median Home Value	$229,688
Average Home Value	$256,359
Housing Affordability Index³	182

HOUSEHOLDS
Total Households	590
Average Household Size	2.48
Family Households	434
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

630 (100%)

Owner Occupied HU

515 (81.7%)

Renter Occupied HU

75 (11.9%)

Vacant Housing Units

40 ( 6.3%)

Median Home Value

$229,688

Average Home Value

$256,359

Housing Affordability Index³

182

HOUSEHOLDS

Total Households

590

Average Household Size

2.48

Family Households

434

Average Family Size

3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	0.67%	0.42%
Households	1.15%	1.03%
Families		0.46%
Median Household Income		4.16%
Per Capita Income		2.96%
Owner Occupied HU		1.32%

GROWTH RATE / YEAR

2020-2024

2024-2029

Population

0.67%

0.42%

Households

1.15%

1.03%

Families

0.46%

Median Household Income

4.16%

Per Capita Income

2.96%

Owner Occupied HU

1.32%

Williamsville, IL - Peer Comparisons by Rank and Percentile

The table below compares Williamsville to the other 1,462 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 566	61st
Population Density	# 726	50th
Median Household Income	# 84	94th
Housing Affordability Index	# 1145	78th
Per Capita Income	# 94	94th
Diversity Index	# 1057	27th

Variable Description

Rank

Percentile

Total Population

# 566

61st

Population Density

# 726

50th

Median Household Income

# 84

94th

Housing Affordability Index

# 1145

78th

Per Capita Income

# 94

94th

Diversity Index

# 1057

27th

Illinois Census Data Comparison Tool

Williamsville, IL Profile: Facts & Data

Williamsville, Illinois - Basic Facts

Williamsville, IL Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Williamsville, IL - Peer Comparisons by Rank and Percentile

Williamsville, IL - Most Popular Things to Do

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Sangamon County