Elgin, IL Profile: Facts, Map & Data


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Elgin, Illinois - Basic Facts

The City of Elgin is the 7th largest city in Illinois with a population of 115,602 as of July 1, 2018. Elgin 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 Elgin is located at latitude 42.0396 and longitude -88.3217 in Kane County. The formal boundaries for the City of Elgin (see map below) encompass a land area of 37.31 sq. miles and a water area of 0.59 sq. miles. Kane County is in the Central time zone (GMT -6). The elevation is 745 feet.

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

The City of Elgin (GNIS ID: 2394641) 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 City of Elgin is located within Township of Elgin, a minor civil division (MCD) of Kane County.

Beneath the boundary map are tables with Elgin population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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City of Elgin, IL Boundary Map

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Boundary Maps: Township of Elgin | Kane County | Illinois Counties

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Elgin, IL Data & Demographics (As of July 1, 2018)


Total Population 115,602
Population in Households 113,655
Population in Familes 96,547
Population in Group Qrtrs 1,947
Population Density2 3,099
Diversity Index3 78


Median Household Income $65,248
Average Household Income $83,920
Per Capita Income $27,598


Total Housing Units 40,215 (100%)
Owner Occupied HU 24,967 (62.1%)
Renter Occupied HU 12,399 (30.8%)
Vacant Housing Units 2,849 ( 7.1%)
Median Home Value $210,800
Average Home Value $246,437


Total Households 37,366
Average Household Size 3.04
Family Households 26,898
Average Family Size 4
  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 0.81% 0.64%
Households 0.76% 0.61%
Families 0.77% 0.52%
Median Household Income   1.92%
Per Capita Income   2.24%

Elgin, IL - Peer Comparisons by Rank and Percentile

The table below compares Elgin to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 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 # 7 100th
Population Density # 133 90th
Diversity Index # 28 98th
Median Household Income # 361 74th
Per Capita Income # 690 50th

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

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