Henry, IL Profile: Facts & Data

Henry, Illinois - Basic Facts

The City of Henry had a population of 2,376 as of July 1, 2025.

The primary coordinate point for Henry is located at latitude 41.1114 and longitude -89.3565 in Marshall County. The formal boundaries for the City of Henry encompass a land area of 1.75 sq. miles and a water area of 0.07 sq. miles. Marshall County is in the Central time zone (GMT -6).

The City of Henry 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 City of Henry is located within Township of Henry, a minor civil division (MCD) of Marshall County.

Jump to... (On This Page!)

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

POPULATION
Total Population	2,376 (100%)
Population in Households	2,316 (97.5%)
Population in Families	1,762 (74.2%)
Population in Group Quarters¹	60 ( 2.5%)
Population Density	1,322
Diversity Index²	16


INCOME
Median Household Income	$57,375
Average Household Income	$72,858
% of Income for Mortgage⁴	14%
Per Capita Income	$31,721
Wealth Index⁵	62
Socioeconomic Status Index⁶	Low (44.8)

HOUSING
Total HU (Housing Units)	1,116 (100%)
Owner Occupied HU	793 (71.1%)
Renter Occupied HU	240 (21.5%)
Vacant Housing Units	83 ( 7.4%)
Median Home Value	$131,995
Average Home Value	$160,848
Housing Affordability Index³	138

HOUSEHOLDS
Total Households	1,033
Average Household Size	2.24
Family Households	604
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

1,116 (100%)

Owner Occupied HU

793 (71.1%)

Renter Occupied HU

240 (21.5%)

Vacant Housing Units

83 ( 7.4%)

Median Home Value

$131,995

Average Home Value

$160,848

Housing Affordability Index³

138

HOUSEHOLDS

Total Households

1,033

Average Household Size

2.24

Family Households

604

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	0.46%	0.00%
Households	0.83%	0.17%
Families		0.30%
Median Household Income		2.48%
Per Capita Income		2.14%
Owner Occupied HU		0.30%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

0.46%

0.00%

Households

0.83%

0.17%

Families

0.30%

Median Household Income

2.48%

Per Capita Income

2.14%

Owner Occupied HU

0.30%

Henry, IL - Peer Comparisons by Rank and Percentile

The table below compares Henry 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	# 467	68th
Population Density	# 496	66th
Median Household Income	# 1230	16th
Housing Affordability Index	# 846	58th
Per Capita Income	# 1205	18th
Diversity Index	# 1018	30th

Variable Description

Rank

Percentile

Total Population

# 467

68th

Population Density

# 496

66th

Median Household Income

# 1230

16th

Housing Affordability Index

# 846

58th

Per Capita Income

# 1205

18th

Diversity Index

# 1018

30th

Illinois Census Data Comparison Tool

Henry, IL Profile: Facts & Data

Henry, Illinois - Basic Facts

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

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Henry, IL - Peer Comparisons by Rank and Percentile

Henry, 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

Marshall County