Alden, IL Profile: Facts & Data

The primary coordinate point for Alden is located at latitude 42.4589 and longitude -88.5179 in McHenry County. McHenry County is in the Central time zone (GMT -6).

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

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

POPULATION
Total Population	107 (100%)
Population in Households	107 (100.0%)
Population in Families	89 (83.2%)
Population in Group Quarters¹	0
Population Density	852
Diversity Index²	34


INCOME
Median Household Income	$80,523
Average Household Income	$101,934
% of Income for Mortgage⁴	0%
Per Capita Income	$45,727
Wealth Index⁵	131
Socioeconomic Status Index⁶	Moderate (61.4)

HOUSING
Total HU (Housing Units)	55 (100%)
Owner Occupied HU	41 (74.5%)
Renter Occupied HU	7 (12.7%)
Vacant Housing Units	7 (12.7%)
Median Home Value	$331,818
Average Home Value	$372,561
Housing Affordability Index³	0

HOUSEHOLDS
Total Households	48
Average Household Size	2.23
Family Households	33
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.

Alden, IL - Peer Comparisons by Rank and Percentile

The table below compares Alden 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.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-1.03%	-0.95%
Households	0.00%	0.00%
Families		-3.93%
Median Household Income		3.78%
Per Capita Income		3.94%
Owner Occupied HU		0.96%

Variable Description	Rank	Percentile
Total Population	# 1328	9th
Population Density	# 787	46th
Median Household Income	# 594	59th
Housing Affordability Index	# 57	4th
Per Capita Income	# 449	69th
Diversity Index	# 472	68th

Alden, IL Profile: Facts & Data

Alden, Illinois - Basic Facts

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

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Alden, IL - Peer Comparisons by Rank and Percentile

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