Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2021

ZIP Codes for City of Sycamore, IL

Sycamore, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 60178StandardDekalb21,840815

Timezone(s):Central (GMT -06:00)
Counties:DEKALB, IL
Population:17,519 (More Details)
Male Population:8,543
Female Population:8,976
Median Age:35
ZIP Codes:1
Area Codes:1
Total Area:635 square miles (county)
Land Area:631 square miles (county)
Water Area:3 square miles (county)

Sycamore, IL Demographic Information *

Total population17,519
Male population8,543
Female population8,976
Median age (years)34.8
White Population16,009
Black Population509
Indian Population34
Asian Population260
Hawaiian Population2
Hispanic Population1,229
Median age (Male)33.6
Median age (Female)36.1
Total households6,993
Family households (families)4,574
Average household size2.48
Average family size3.06
Total housing units7,394
* Demographic data is based on 2010 Census.

Sycamore, IL Other Information

118 Cities within 30 miles of Sycamore, IL Products


  1. U.S. Postal Service [Last Updated: 12/1/2021],
  2. Internal Data Creation [Last Updated: 12/1/2021],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],