Round Lake, IL Profile: Facts, Map & Data


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Round Lake, Illinois - Basic Facts

The Village of Round Lake had a population of 18,967 as of July 1, 2016. Round 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 Round Lake is located at latitude 42.3432 and longitude -88.1022 in Lake County. The formal boundaries for the Village of Round Lake (see map below) encompass a land area of 5.51 sq. miles and a water area of 0.17 sq. miles. Lake County is in the Central time zone (GMT -6). The elevation is 797 feet.

The Village of Round Lake (GNIS ID: 2399131) 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.

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

Beneath the boundary map are tables with Round Lake population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Village of Round Lake, IL Boundary Map

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

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Round Lake, IL Data & Demographics (As of July 1, 2016)


Total Population 18,967
Population in Households 18,943
Population in Familes 16,507
Population in Group Qrtrs 24
Population Density1 3,440
Diversity Index2 71


Total Households 6,007
Average Household Size 3.15
Family Households 4,499
Average Family Size 4


Total Housing Units 6,258 (100%)
Owner Occupied HU 4,822 (77.1%)
Renter Occupied HU 1,185 (18.9%)
Vacant Housing Units 251 ( 4.0%)
Median Home Value $200,702
Average Home Value $214,377


Median Household Income $77,794
Average Household Income $95,622
Per Capita Income $32,327
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.55% 0.29%
Households 0.39% 0.24%
Families -0.35% 0.16%
Median Household Income   2.45%
Per Capita Income   1.84%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Round Lake, IL - Peer Comparisons by Rank and Percentile

The table below compares Round Lake to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2016 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 # 134 90th
Population Density1 # 113 92nd
Diversity Index2 # 56 96th
Median Household Income # 165 88th
Per Capita Income # 262 81st

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

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