Area Code Lookup
What Area Code Is Oskaloosa?
Area code 641 · Iowa
Oskaloosa uses area code 641. It is located in Iowa.
Area Code Serving Oskaloosa
Frequently Asked Questions
What area code is Oskaloosa?
Oskaloosa uses area code 641. It is located in Iowa.
How do I call Oskaloosa from outside the US?
To call Oskaloosa from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-641-XXX-XXXX). The +1 is the country code for all NANPA countries.