DeKalb, IL Profile: Facts & Data


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DeKalb, Illinois - Basic Facts

The City of DeKalb had a population of 43,530 as of July 1, 2018. DeKalb 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 DeKalb is located at latitude 41.9298 and longitude -88.7485 in DeKalb County. The formal boundaries for the City of DeKalb (see map below) encompass a land area of 15.21 sq. miles and a water area of 0.16 sq. miles. DeKalb County is in the Central time zone (GMT -6). The elevation is 879 feet.

The City of DeKalb (GNIS ID: 2394494) 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 DeKalb is located within Township of DeKalb, a minor civil division (MCD) of DeKalb County.

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

Alternate Unofficial Names for DeKalb: Buena Vista, De Kalb, DeKalb Center, Huntleys Grove.

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


Total Population 43,530
Population in Households 37,878
Population in Familes 22,932
Population in Group Qrtrs 5,652
Population Density1 2,861
Diversity Index2 60


Median Household Income $39,611
Average Household Income $57,625
Per Capita Income $22,476


Total Housing Units 16,781 (100%)
Owner Occupied HU 6,115 (36.4%)
Renter Occupied HU 9,497 (56.6%)
Vacant Housing Units 1,168 ( 7.0%)
Median Home Value $175,663
Average Home Value $190,818


Total Households 15,613
Average Household Size 2.43
Family Households 7,426
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 -0.13% 0.21%
Households 0.13% 0.33%
Families -0.2% -0.03%
Median Household Income   0.63%
Per Capita Income   1.67%

DeKalb, IL - Peer Comparisons by Rank and Percentile

The table below compares DeKalb 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 # 35 98th
Population Density # 146 89th
Diversity Index # 115 92nd
Median Household Income # 1217 11th
Per Capita Income # 1147 16th

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

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