Area Code Lookup
What Area Code Is Merrillville?
Area code 219 · Indiana
Merrillville uses area code 219. It is located in Indiana.
Area Code Serving Merrillville
Frequently Asked Questions
What area code is Merrillville?
Merrillville uses area code 219. It is located in Indiana.
How do I call Merrillville from outside the US?
To call Merrillville from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-219-XXX-XXXX). The +1 is the country code for all NANPA countries.