Area codes in Johnstown, Pennsylvania
Johnstown, Pennsylvania uses 2 area codes — 814 and 582. The main Johnstown area code is 814.
Area codes serving Johnstown
Phone numbers in Johnstown are written as ten digits — for example (814) 555-0190 — and fall in the Eastern Time zone.
How Johnstown came to have 2 area codes
The original Johnstown area code is 814, 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: 582 (2021). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Johnstown now uses all 2 codes and every local call is dialed with ten digits.
All Pennsylvania area codes · Is a Johnstown call a scam?
Nearby cities
- Altoona area codes
- Pittsburgh area codes
- Morgantown area codes
- Hagerstown area codes
- Frederick area codes
- Youngstown area codes
- Harrisburg area codes
- York area codes
More cities in Pennsylvania
- Philadelphia area codes
- Allentown area codes
- Erie area codes
- Scranton area codes
- Lebanon area codes
- Easton area codes
- West Chester area codes
- Wilkes-Barre area codes
Frequently asked questions
What is the area code for Johnstown?
The main area code for Johnstown, Pennsylvania is 814. Johnstown is now served by 2 area codes in total: 814, 582.
How many area codes does Johnstown have?
Johnstown has 2 area codes: 814, 582.
Why does Johnstown have more than one area code?
As Johnstown used up the numbers available in its original area code (814, 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 Johnstown number?
Dial all 10 digits — the area code (814 or 582) 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.