Island Lake, IL Profile: Facts, Map & Data


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Island Lake, Illinois - Basic Facts

The Village of Island Lake had a population of 8,113 as of July 1, 2017. Island 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 Island Lake is located at latitude 42.2793 and longitude -88.1991 in Lake County. The formal boundaries for the Village of Island Lake (see map below) encompass a land area of 3.39 sq. miles and a water area of 0.21 sq. miles. Lake County is in the Central time zone (GMT -6). The elevation is 781 feet.

While the primary coordinates for Village of Island Lake are located in Lake County, it should be noted that the formal boundaries for this community also extend into and McHenry County.

The Village of Island Lake (GNIS ID: ) has a P1 Census Class Code which indicates populated place that is also an incorporated place with the same name and the same census code. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Island Lake is located within Township of Nunda, a minor civil division (MCD) of Lake County.

Beneath the boundary map are tables with Island Lake population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Village of Island Lake, IL Boundary Map

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Boundary Maps: Township of Nunda | Lake County | Illinois Counties

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Island Lake, IL Data & Demographics (As of July 1, 2017)


Total Population 8,113
Daytime Population: Workers 1,415
Daytime Population: Residents 3,453
Total Daytime Population (TDP) 4,868
Ratio TDP/Total Population1 0.60
Population in Households 8,097
Population in Familes 6,784
Population in Group Qrtrs 16
Population Density2 2,392
Diversity Index3 45


Median Household Income $70,685
Average Household Income $84,566
Per Capita Income $31,675


Total Housing Units 3,175 (100%)
Owner Occupied HU 2,606 (82.1%)
Renter Occupied HU 441 (13.9%)
Vacant Housing Units 128 ( 4.0%)
Median Home Value $188,841
Average Home Value $223,436


Total Households 3,047
Average Household Size 2.66
Family Households 2,144
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.06% 0.09%
Households 0.19% 0.14%
Families -0.01% 0.05%
Median Household Income   1.51%
Per Capita Income   2.39%

Island Lake, IL - Peer Comparisons by Rank and Percentile

The table below compares Island Lake to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2017 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 # 257 81st
Population Density # 194 86th
Diversity Index # 221 84th
Median Household Income # 260 81st
Per Capita Income # 339 75th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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