Island Lake, IL demographics:
population, income, and more

Total population
8,014
-0.1% year-over-year change
Median household income
$103,156/yr
5.1% year-over-year change
Housing units
3,073
0.9% year-over-year change

Island Lake population

How many people live in Island Lake

Island Lake is home to 8,014 residents, according to the most recent Census data. Gender-wise, 47.6% of Island Lake locals are male, and 52.4% are female.

Total population
8,014
-0.1% year-over-year change
Gender ratio
Male
47.6%
3,812
Female
52.4%
4,202
Value Percent YoY change
Male 3,812 47.6% -4.9%
Female 4,202 52.4% 4.7%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Island Lake is 39, with the population distributed as follows: about 20.6% are children under 15, then 11% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.9% of the population, while another 28.6% fall into the 45 to 64 bracket. Finally, around 13.9% are 65 or older.

Median age
39.1
Age breakdown
Under 15
20.6%
15 to 24
11%
25 to 44
25.9%
45 to 64
28.6%
Over 65
13.9%
Value Percent YoY change
Under 15 1,651 20.6% 1.6%
15 to 24 882 11% 4.6%
25 to 44 2,074 25.9% -0.1%
45 to 64 2,296 28.6% -4.8%
Over 65 1,111 13.9% 4.2%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Island Lake, 87% of the population are US-born citizens, while 7.8% have gained naturalized citizenship. At the same time, 5.2% of residents are non-citizens. As for race, 83.3% of locals are Caucasian, 0.3% are African American and 2.4% have Asian roots. There’s also a share of 11% that includes residents with two or more races.

Citizenship
U.S.-born citizens
87%
Non-U.S.-born citizens
7.8%
Non-citizens
5.2%
Value Percent YoY change
U.S.-born citizens 6,972 87% 2.2%
Non-U.S.-born citizens 627 7.8% -14.9%
Non-citizens 415 5.2% -10.8%
Racial breakdown
White
83.3%
Black or African American
0.3%
American Indian and Alaska Native
0.1%
Asian
2.4%
Native Hawaiian and other Pacific Islander
0%
Two or more races
11%
Other
2.9%
Value Percent
White 6,674 83.3%
Black or African American 27 0.3%
American Indian and Alaska Native 6 0.1%
Asian 193 2.4%
Two or more races 882 11%
Other 232 2.9%

Households in Island Lake

A peek inside Island Lake households

Island Lake has 2,905 households, with an average of 3 members in each. Of these, 70.3% are families, while the remaining 29.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
2,905
0.6% year-over-year change
Average people per household
3
Non-family households
864
Family households
2,041
Value Percent YoY change
Non-family households 864 29.7% -5.2%
Family households 2,041 70.3% 3.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Island Lake

The housing landscape of Island Lake

Island Lake's housing consists of 3,073 units, with 76.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 20.3% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 0.8% of the housing landscape.

Housing units
3,073
0.9% year-over-year change
Housing types
Value Percent
1 unit, detached 2,346 76.3%
1 unit, attached 623 20.3%
3 or 4 units 21 0.7%
5 to 9 units 43 1.4%
10 to 19 units 14 0.5%
Mobile home 26 0.8%
Homes built since 2020
8
% year-over-year change

The age of buildings in Island Lake

In Island Lake, the median construction year is 1990. About 6.4% of homes were built before the 1940s, with another 8.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 13.5% of homes were added from 2000 to 2009, 2.7% between 2010 and 2019, and 0.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 196 6.4% -5.8%
Built between 1940 and 1949 273 8.9% 31.9%
Built between 1950 and 1959 101 3.3% -29.4%
Built between 1960 and 1969 67 2.2% -8.2%
Built between 1970 and 1979 276 9% 40.1%
Built between 1980 and 1989 618 20.1% -16.4%
Built between 1990 and 1999 1,037 33.8% 5.2%
Built between 2000 and 2009 414 13.5% 0.0%
Built between 2010 and 2019 83 2.7% 6.4%
Built in 2020 or later 8 0.3% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Island Lake occupancy rates

Out of the 2,905 occupied housing units in Island Lake, 82.6% are owner-occupied, while 17.4% are lived in by tenants. Meanwhile, 5.5% of all homes on the local market sit vacant.

Occupied housing units
2,905
0.6% year-over-year change
Occupancy breakdown
Renter occupied
504
Owner occupied
2,401
Value Percent YoY
change
Renter occupied 504 17.4% -4.9%
Owner occupied 2,401 82.6% 1.8%
Unoccupied housing units
5.5%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Island Lake housing costs

Housing costs in Island Lake come to a median of $1,681 per month, while tenants specifically pay a median gross rent of $1,874.

Median housing costs per month
$1,681/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Island Lake
$1,874/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Island Lake

Island Lake education at a glance

About 35.6% of the population in Island Lake went to high school, while 24.8% pursued college studies. Another 10.3% earned an associate degree and 20.7% hold a bachelor’s. Meanwhile, 6.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 115 1.9% -17.3%
High school diploma 2,186 35.6% -8.2%
College diploma 1,523 24.8% 1.5%
Associate degree 634 10.3% -4.8%
Bachelor's degree 1,274 20.7% 6.9%
Graduate degree 415 6.8% 12.2%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Island Lake

How much people earn in Island Lake

The average annual household income in Island Lake was $113,318 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.4% change from the previous year. At the same time, the median income stood at $103,156, reflecting a +5.1% shift over the same period.

Average household income in Island Lake
$113,318/year
2.4% year-over-year change
Median household income in Island Lake
$103,156/year
5.1% year-over-year change

Island Lake income by age

In Island Lake, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $115,260. Those with someone between 45 and 64 in charge, often well established professionally, earn $99,688 overall. Overall, 93.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $115,260 10.0%
45 - 64 $99,688 2.0%
Over 65 $80,694 7.1%
Above poverty level
7,405
Below poverty level
524
Value Percent YoY
change
Above poverty level 7,405 93.4% 0.3%
Below poverty level 524 6.6% 2.8%

Employment in Island Lake

Workforce and job types in Island Lake

The job market in Island Lake is powered by 4,256 working residents, spread across a range of industries and roles. 75.6% of the working population are employed in professional or administrative positions, while 24.4% are in hands-on or service-based jobs. Also, 10% run their own businesses, 75.6% are employed by private companies, and 9.3% work in the public sector.

Workforce demographics

Working population
4,256
-1.2% year-over-year change
White collar
3,217
Blue collar
1,039
Value Percent YoY change
White collar 3,217 75.6% 4.8%
Blue collar 1,039 24.4% -16.0%
Employer type
Self employees
10%
Private companies
75.6%
Governmental workers
9.3%
Not for profit companies
5.2%
Value Percent YoY change
Self employees 425 10% 27.6%
Private companies 3,216 75.6% -3.0%
Governmental workers 395 9.3% -11.2%
Not for profit companies 220 5.2% 2.3%
Unemployment rate
6.7%
-0.7% year-over-year change

Available workforce

The unemployment rate in Island Lake stands at 6.7%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Island Lake

How people get around in Island Lake

Means of transportation
Value Percent YoY change
Car 3,503 82.6% -4.4%
Taxicab 10 0.2% 66.7%
Railroad 15 0.4% 200.0%
Motorcycle 12 0.3% -20.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Island Lake by zipcode?

Zipcode Population Number of households Median income Average income
60042 8,347 3,088 $99,917 $109,895

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FAQs about Island Lake demographics 

What is the total population of Island Lake?

Island Lake has a total population of 8,014 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.1% compared to a year ago.

What is the gender ratio in Island Lake?

The gender ratio in Island Lake is as follows:
  • 47.6% males (3,812 residents)
  • 52.4% females (4,202 residents)

What is the median age in Island Lake?

The median age in Island Lake is 39.1.

What is the age distribution of the population in Island Lake?

The age distribution in Island Lake is as follows:
  • Under 15: 20.6% (1,651 residents)
  • Ages 15-24: 11% (882 residents)
  • Ages 25-44: 25.9% (2,074 residents)
  • Ages 45-64: 28.6% (2,296 residents)
  • Over 65: 13.9% (1,111 residents)

What is the racial and ethnic makeup of Island Lake?

The racial and ethnic makeup of Island Lake is as follows:
  • White: 83.3% (6,674 residents)
  • Black or African American: 0.3% (27 residents)
  • American Indian and Alaska Native: 0.1% (6 residents)
  • Asian: 2.4% (193 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 11% (882 residents)
  • Other: 2.9% (232 residents)

What percentage of the population in Island Lake are U.S.-born citizens?

U.S.-born citizens represent 87% of the population in Island Lake.

How many housing units are there in Island Lake?

There are 3,073 housing units in Island Lake, reflecting a +0.9% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Island Lake and what is the average household size?

Island Lake has a total of 2,905 households, with an average of 3 people in each.

What is the median household income in Island Lake?

Island Lake has a median household income of $103,156, representing a +5.1% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Island Lake?

The employment rate is 93.3% in Island Lake, with a workforce of 4,256 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 75.6% (3,217 residents)
  • Blue-collar workers: 24.4% (1,039 residents)

Places of employment:
  • Self-employed: 10% (425 residents)
  • Private companies: 75.6% (3,216 residents)
  • Governmental workers: 9.3% (395 residents)
  • Not-for-profit companies: 5.2% (220 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025