Sycamore, IL Profile: Facts & Data


Sycamore Local Links & Resources:
Resources | ALL Sycamore Content
Planning to visit Sycamore? See Local Hotels

Also See: Sycamore, IL ZIP Codes & ZIP Code Maps

Sycamore, Illinois - Basic Facts

Quick & Easy Tools

The City of Sycamore had a population of 18,006 as of July 1, 2021. Sycamore 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 Sycamore is located at latitude 41.9889 and longitude -88.6868 in DeKalb County. The formal boundaries for the City of Sycamore encompass a land area of 9.73 sq. miles and a water area of 0.04 sq. miles. DeKalb County is in the Central time zone (GMT -6). The elevation is 873 feet.

The City of Sycamore 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 Sycamore is located within Township of Sycamore, a minor civil division (MCD) of DeKalb County.

Jump to... (On This Page!)
  1. Sycamore 2021 Demographic Data
  2. Growth Rates for Sycamore (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2021 Demographics

Sycamore, IL Data & Demographics (As of July 1, 2021)


Total Population 18,006 (100%)
Population in Households 17,798 (98.8%)
Population in Families 14,149 (78.6%)
Population in Group Quarters1 208 ( 1.2%)
Population Density 1,832
Diversity Index2 37


Median Household Income $77,505
Average Household Income $95,111
% of Income for Mortgage4 12%
Per Capita Income $38,379
Wealth Index5 95


Total HU (Housing Units) 7,793 (100%)
Owner Occupied HU 4,863 (62.4%)
Renter Occupied HU 2,477 (31.8%)
Vacant Housing Units 453 ( 5.8%)
Median Home Value $226,091
Average Home Value $243,326
Housing Affordability Index3 162


Total Households 7,340
Average Household Size 2.42
Family Households 4,703
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.22% -0.13%
Households 0.4% 0.01%
Families 0.21% -0.15%
Median Household Income   1.81%
Per Capita Income   2.34%
Owner Occupied HU   0.48%

Sycamore, IL - Peer Comparisons by Rank and Percentile

The table below compares Sycamore to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2021 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 # 143 90th
Population Density # 323 76th
Median Household Income # 294 79th
Housing Affordability Index # 285 21st
Per Capita Income # 247 82nd
Diversity Index # 310 77th

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

Sycamore, IL - Most Popular Things to Do

Also See: Nearby Hotels | Driving Directions

Use HTL Address Research for a Illinois Address and get...

Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2021, data includes home values, household income, percentage of homes owned, rented or vacant, etc.

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features

Illinois Census Data Comparison Tool

Compare Illinois July 1, 2021 Data
Highest or Lowest: