Lemont, IL Profile: Facts, Map & Data


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Lemont, Illinois - Basic Facts

The Village of Lemont had a population of 16,882 as of July 1, 2017. Lemont ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Lemont is located at latitude 41.6673 and longitude -87.9844 in Cook County. The formal boundaries for the Village of Lemont (see map below) encompass a land area of 8.16 sq. miles and a water area of 0.4 sq. miles. Cook County is in the Central time zone (GMT -6). The elevation is 607 feet.

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

The Village of Lemont (GNIS ID: 2398417) 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 Lemont is located within Township of Lemont, a minor civil division (MCD) of Cook County.

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

Alternate Unofficial Names for Lemont: Athens, Keepatau, Palmyra, Yankee Settlement.

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Village of Lemont, IL Boundary Map

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


Total Population 16,882
Daytime Population: Workers 7,112
Daytime Population: Residents 8,223
Total Daytime Population (TDP) 15,335
Ratio TDP/Total Population1 0.91
Population in Households 16,683
Population in Familes 14,804
Population in Group Qrtrs 199
Population Density2 2,068
Diversity Index3 20


Median Household Income $94,301
Average Household Income $119,789
Per Capita Income $42,814


Total Housing Units 6,287 (100%)
Owner Occupied HU 4,936 (78.5%)
Renter Occupied HU 1,101 (17.5%)
Vacant Housing Units 250 ( 4.0%)
Median Home Value $374,271
Average Home Value $402,270


Total Households 6,037
Average Household Size 2.76
Family Households 4,552
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 0.85% 0.48%
Households 0.87% 0.5%
Families 0.84% 0.44%
Median Household Income   1.64%
Per Capita Income   2.25%

Lemont, IL - Peer Comparisons by Rank and Percentile

The table below compares Lemont 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 # 153 89th
Population Density # 257 81st
Diversity Index # 486 64th
Median Household Income # 88 94th
Per Capita Income # 100 93rd

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

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