Area codes in Terre Haute, Indiana
Terre Haute, Indiana uses 2 area codes — 812 and 930. The main Terre Haute area code is 812.
Area codes serving Terre Haute
Phone numbers in Terre Haute are written as ten digits — for example (812) 555-0190 — and fall in the Eastern & Central Time zone.
How Terre Haute came to have 2 area codes
The original Terre Haute area code is 812, in service since 1947. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 930 (2015). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Terre Haute now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Champaign area codes
- Greenwood area codes
- West Lafayette area codes
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- Decatur area codes
- Champaign-Urbana area codes
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More cities in Indiana
- Fort Wayne area codes
- South Bend area codes
- Evansville area codes
- Gary area codes
- Muncie area codes
- Hammond area codes
- Anderson area codes
- Elkhart area codes
Frequently asked questions
What is the area code for Terre Haute?
The main area code for Terre Haute, Indiana is 812. Terre Haute is now served by 2 area codes in total: 812, 930.
How many area codes does Terre Haute have?
Terre Haute has 2 area codes: 812, 930.
Why does Terre Haute have more than one area code?
As Terre Haute used up the numbers available in its original area code (812, in service since 1947), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Terre Haute number?
Dial all 10 digits — the area code (812 or 930) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.