Data Last Updated: May 1, 2023

ZIP Codes for City of Dorchester, IA


    
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Counties:	ALLAMAKEE, IA
Area Code(s):	563
Timezone(s):	Central (GMT -06:00)
City Population:	532 (More Details)
CBSA:	None
Congressional District(s):	02
Land Area:	639 square miles (county)
Water Area:	20 square miles (county)

1 ZIP Code

Dorchester, IA ZIP Code Boundaries

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Dorchester, IA Covers 1 ZIP Code

ZIP Code	Type	Population	% of Population	Aliases
52140	Standard	532	100.00%

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 population	283
Female population	249
Median age (years)	47.8
White Population	531
Black Population	0
Indian Population	0
Asian Population	0
Hawaiian Population	0
Hispanic Population	1
Median age (Male)	49.6
Median age (Female)	44.2
Total households	220
Family households (families)	168
Average household size	2.41
Average family size	2.72
Total housing units	294

* 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.

References

U.S. Postal Service [Last Updated: 2/1/2023], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov