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: May 1, 2023

ZIP Codes for City of Marengo, IL

Need a ZIP Code for Marengo, IL? Please enter an address.

Counties:MCHENRY, IL
Area Code(s):779, 815
Timezone(s):Central (GMT -06:00)
City Population:7,648 (More Details)
CBSA:Chicago-Naperville-Elgin, IL-IN-WI
Congressional District(s):11, 16
Land Area:603 square miles (county)
Water Area:8 square miles (county)

1 ZIP Code

Marengo, IL ZIP Code Boundaries

Download ZIP Code Database

Marengo, IL Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Marengo, IL Demographic Information *

Total population**7,648
Male population3,778
Female population3,870
Median age (years)35
White Population6,782
Black Population50
Indian Population41
Asian Population39
Hawaiian Population1
Hispanic Population1,172
Median age (Male)33.9
Median age (Female)36
Total households2,785
Family households (families)1,963
Average household size2.73
Average family size3.23
Total housing units3,046
* Demographic data is based on 2010 Census for the City of MARENGO.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  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],