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: June 1, 2023

ZIP Codes for City of Flanagan, IL

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

Area Code(s):815, 779
Timezone(s):Central (GMT -06:00)
City Population:1,110 (More Details)
CBSA:Pontiac, IL
Congressional District(s):16
Land Area:1,044 square miles (county)
Water Area:2 square miles (county)

1 ZIP Code

Flanagan, IL ZIP Code Boundaries

Download ZIP Code Database

Flanagan, IL Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
61740Standard1,634100.00%NEBRASKA TOWNSHIP

Flanagan, IL Demographic Information *

Total population**1,110
Male population498
Female population612
Median age (years)45.3
White Population1,085
Black Population9
Indian Population0
Asian Population8
Hawaiian Population0
Hispanic Population20
Median age (Male)40.6
Median age (Female)47.5
Total households446
Family households (families)278
Average household size2.28
Average family size2.88
Total housing units497
* Demographic data is based on 2010 Census for the City of FLANAGAN.
** 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],