ZIP Code 51231 – Archer, Iowa | ZipsCode.us
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ZIP Code 51231
Archer, Iowa · O'Brien
ZIP code 51231 belongs to the city of Archer in Iowa (O'Brien). See all Iowa ZIP Codes.
ZIP code 51231 belongs to Archer, Iowa, in O'Brien. If you are mailing a letter or package to this area, use Archer, IA 51231 in the address. On this page you will find the city and county for 51231, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 51231?
The city for ZIP code 51231 is Archer, Iowa. When you write an address in this area, the correct format is: Name, Street Address, Archer, IA 51231.
ZIP Code 51231 County and State
ZIP code 51231 is located in O'Brien, Iowa. For a complete list of cities and ZIP codes across the state, see the Iowa ZIP Codes page.
Nearby ZIP Codes in O'Brien
These ZIP codes are in the same county as 51231:
ZIP Code 51231 on the Map
The map below shows the approximate center of ZIP code 51231, near Archer, Iowa. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 43.1179, -95.7417). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 51231
According to public U.S. Census Bureau data, ZIP code 51231 is home to a community in Iowa. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 51231
Need the full ZIP+4 code for a specific street address in Archer? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 51231?
ZIP code 51231 is for Archer, Iowa.
What county is ZIP code 51231 in?
ZIP code 51231 is in O'Brien, Iowa.
What state is ZIP code 51231 in?
ZIP code 51231 is in Iowa (IA).
How do I find the ZIP+4 for an address in 51231?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 51231?
Nearby ZIP codes include 51009 (Calumet), 51046 (Paullina), 51058 (Sutherland), 51201 (Sheldon), 51245 (Primghar).
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