Round Lake Beach, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Round Lake Beach, Illinois is 27,081 as of the 2023 American Community Survey, making it the 77th-largest city in Illinois. The median household income is $86,632, the median home value is $191,200, and the median age is 34.1.
The population has declined 3.6% since 2010 (28,111 → 27,091).
27,081
Population
5367
People / sq mi
$86,632
Median Income
$191,200
Median Home Value
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Round Lake Beach covers 5.0 sq mi of land at 5367 people per square mile.
About Round Lake Beach, IL
Round Lake Beach is distinguished by its share of foreign-born residents, 10.0% of the population. Round Lake Beach is a city in Illinois with a population of 27,081.
Household earnings are middling, with a median of $86,632 — above the US median of $78,538. The poverty rate is 8.0%, below the national 12.4%. Housing is relatively affordable, with a median home value of $191,200, with typical rent around $1,382.
College attainment is 16.8%, below the national 35.0%. Most workers commute: only 6.8% work from home, below the national 14.0%, and the average commute runs about 31 minutes each way.
Round Lake Beach village Population History (2010-2024)
The city of Round Lake Beach village had a population of 28,111 in 2010 and 27,091 in 2024, a -3.6% growth over 14 years. The peak was 28,111 in 2010. Average annual growth rate: -0.26%.
27,091
Population (2024)
28,111
Population (2010)
28,111
Peak (2010)
-0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 28,111 |
| 2011 | 28,049 |
| 2012 | 27,984 |
| 2013 | 28,001 |
| 2014 | 27,953 |
| 2015 | 27,803 |
| 2016 | 27,715 |
| 2017 | 27,560 |
| 2018 | 27,284 |
| 2019 | 27,100 |
| 2020 | 27,207 |
| 2021 | 27,109 |
| 2022 | 27,000 |
| 2023 | 26,995 |
| 2024 | 27,091 |
Race & Ethnicity
| White | 50.7% |
| Black or African American | 4.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.9% |
| Two or More Races | 0.0% |
Economy & Income
$86,632
Median Household Income
$33,146
Per Capita Income
8.0%
Poverty Rate
5.5%
Unemployment Rate
Housing
$191,200
Median Home Value
$1,382
Median Rent
79.0%
Owner-Occupied
Education
77.0%
High School+
16.8%
Bachelor's+
Commute
3.0%
Drive Alone
75.0%
Public Transit
6.8%
Work From Home
30.7 min
Avg Commute
Community Profile
10.0%
Foreign Born
48.9%
Non-English at Home
6.3%
Veterans
10.1%
With Disability
85.0%
Health Insurance
96.6%
Internet Access
Employment by Industry
| Manufacturing | 17.8% |
| Professional, Scientific & Management | 14.6% |
| Finance, Insurance & Real Estate | 13.6% |
| Education, Health Care & Social Services | 8.5% |
| Construction | 7.5% |
| Information | 6.2% |
| Retail Trade | 5.8% |
| Arts, Entertainment & Food Services | 5.3% |
| Public Administration | 2.2% |
| Transportation & Warehousing | 0.5% |
| Agriculture & Mining | 0.1% |
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Frequently Asked Questions
Round Lake Beach, Illinois has a population of 27,081 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 77th-largest city in Illinois.
The median household income in Round Lake Beach, Illinois is $86,632, with 8.0% of residents living below the federal poverty level.
The median home value in Round Lake Beach, Illinois is $191,200, with median monthly rent at $1,382 and a homeownership rate of 79.0%.
The median age in Round Lake Beach, Illinois is 34.1 years. The population is 53.4% male and 46.6% female.
The population has declined 3.6% since 2010 (28,111 → 27,091).
Where to stay in Round Lake Beach
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.