Saybrook, IL Profile: Facts & Data

Saybrook, Illinois - Basic Facts

The Village of Saybrook had a population of 664 as of July 1, 2025.

The primary coordinate point for Saybrook is located at latitude 40.4267 and longitude -88.5262 in McLean County. The formal boundaries for the Village of Saybrook encompass a land area of 0.78 sq. miles and a water area of 0.03 sq. miles. McLean County is in the Central time zone (GMT -6).

The Village of Saybrook 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 Saybrook is located within Township of Cheney's Grove, a minor civil division (MCD) of McLean County.

Jump to... (On This Page!)

Saybrook, IL Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	664 (100%)
Population in Households	664 (100.0%)
Population in Families	524 (78.9%)
Population in Group Quarters¹	0
Population Density	828
Diversity Index²	21


INCOME
Median Household Income	$74,393
Average Household Income	$87,598
% of Income for Mortgage⁴	14%
Per Capita Income	$40,369
Wealth Index⁵	76
Socioeconomic Status Index⁶	Moderate (49.0)

HOUSING
Total HU (Housing Units)	340 (100%)
Owner Occupied HU	248 (72.9%)
Renter Occupied HU	58 (17.1%)
Vacant Housing Units	34 ( 10.0%)
Median Home Value	$169,444
Average Home Value	$186,411
Housing Affordability Index³	132

HOUSEHOLDS
Total Households	306
Average Household Size	2.17
Family Households	186
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

340 (100%)

Owner Occupied HU

248 (72.9%)

Renter Occupied HU

58 (17.1%)

Vacant Housing Units

34 ( 10.0%)

Median Home Value

$169,444

Average Home Value

$186,411

Housing Affordability Index³

132

HOUSEHOLDS

Total Households

306

Average Household Size

2.17

Family Households

186

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	2020-2025	2025-2030
Population	0.29%	0.06%
Households	1.50%	0.65%
Families		2.26%
Median Household Income		3.71%
Per Capita Income		3.82%
Owner Occupied HU		1.56%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

0.29%

0.06%

Households

1.50%

0.65%

Families

2.26%

Median Household Income

3.71%

Per Capita Income

3.82%

Owner Occupied HU

1.56%

Saybrook, IL - Peer Comparisons by Rank and Percentile

The table below compares Saybrook to the other 1,461 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2025 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	# 807	45th
Population Density	# 815	44th
Median Household Income	# 780	47th
Housing Affordability Index	# 799	55th
Per Capita Income	# 667	54th
Diversity Index	# 767	48th

Variable Description

Rank

Percentile

Total Population

# 807

45th

Population Density

# 815

44th

Median Household Income

# 780

47th

Housing Affordability Index

# 799

55th

Per Capita Income

# 667

54th

Diversity Index

# 767

48th

Illinois Census Data Comparison Tool

Saybrook, IL Profile: Facts & Data

Saybrook, Illinois - Basic Facts

Saybrook, IL Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Saybrook, IL - Peer Comparisons by Rank and Percentile

Saybrook, IL - Most Popular Things to Do

Use HTL Address Research for a Illinois Address and get...

Quick & Easy Ways to...

Illinois Census Data Comparison Tool

McLean County