Crystal Lake, IL Profile: Facts & Data

The City of Crystal Lake had a population of 40,748 as of July 1, 2023. Crystal Lake ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Crystal Lake is located at latitude 42.2411 and longitude -88.3162 in McHenry County. The formal boundaries for the City of Crystal Lake encompass a land area of 18.26 sq. miles and a water area of 0.61 sq. miles. McHenry County is in the Central time zone (GMT -6).

The City of Crystal Lake 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.

Crystal Lake, IL Data & Demographics (As of July 1, 2023)

POPULATION
Total Population	40,748 (100%)
Population in Households	40,376 (99.1%)
Population in Families	34,494 (84.7%)
Population in Group Quarters¹	372 ( 0.9%)
Population Density	2,146
Diversity Index²	54


INCOME
Median Household Income	$92,825
Average Household Income	$119,800
% of Income for Mortgage⁴	17%
Per Capita Income	$44,781
Wealth Index⁵	126
Socioeconomic Status Index⁶	Moderate (57.1)

HOUSING
Total HU (Housing Units)	15,893 (100%)
Owner Occupied HU	12,089 (76.1%)
Renter Occupied HU	3,138 (19.7%)
Vacant Housing Units	666 ( 4.2%)
Median Home Value	$264,759
Average Home Value	$279,990
Housing Affordability Index³	112

HOUSEHOLDS
Total Households	15,227
Average Household Size	2.65
Family Households	10,843
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.

Crystal Lake, IL - Peer Comparisons by Rank and Percentile

The table below compares Crystal Lake to the other 1,464 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2023 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	2020-2023	2023-2028
Population	0.36%	-0.21%
Households	0.92%	0.17%
Families		0.09%
Median Household Income		1.79%
Per Capita Income		2.52%
Owner Occupied HU		0.42%

Variable Description	Rank	Percentile
Total Population	# 38	97th
Population Density	# 215	85th
Median Household Income	# 228	84th
Housing Affordability Index	# 448	31st
Per Capita Income	# 295	80th
Diversity Index	# 244	83rd

Crystal Lake, IL Profile: Facts & Data

Crystal Lake, Illinois - Basic Facts

Crystal Lake, IL Data & Demographics (As of July 1, 2023)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Crystal Lake, IL - Peer Comparisons by Rank and Percentile

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