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 Dorchester, IA

Need a ZIP Code for Dorchester, IA? Please enter an address.

Area Code(s):563
Timezone(s):Central (GMT -06:00)
City Population:532 (More Details)
Congressional District(s):02
Land Area:639 square miles (county)
Water Area:20 square miles (county)

1 ZIP Code

Dorchester, IA ZIP Code Boundaries

Download ZIP Code Database

Dorchester, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Dorchester, IA Demographic Information *

There is no Census data for the city of DORCHESTER, IA. We have pulled information for the ZIP Code 52140 instead.
Total population**532
Male population283
Female population249
Median age (years)47.8
White Population531
Black Population0
Indian Population0
Asian Population0
Hawaiian Population0
Hispanic Population1
Median age (Male)49.6
Median age (Female)44.2
Total households220
Family households (families)168
Average household size2.41
Average family size2.72
Total housing units294
* Demographic data is based on 2010 Census for the City of DORCHESTER.
** 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],