Area codes in Evanston, Illinois
Evanston, Illinois uses 2 area codes — 847 and 224. The main Evanston area code is 847.
Area codes serving Evanston
Phone numbers in Evanston are written as ten digits — for example (847) 555-0190 — and fall in the Central Time zone.
How Evanston came to have 2 area codes
The original Evanston area code is 847, in service since 1996. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 224 (2002). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Evanston now uses all 2 codes and every local call is dialed with ten digits.
All Illinois area codes · Is a Evanston call a scam?
Nearby cities
- Chicago area codes
- Schaumburg area codes
- Naperville area codes
- Hammond area codes
- Gary area codes
- Kenosha area codes
- Joliet area codes
- Racine area codes
More cities in Illinois
- Rockford area codes
- Champaign area codes
- Champaign-Urbana area codes
- Decatur area codes
- DeKalb area codes
Frequently asked questions
What is the area code for Evanston?
The main area code for Evanston, Illinois is 847. Evanston is now served by 2 area codes in total: 847, 224.
How many area codes does Evanston have?
Evanston has 2 area codes: 847, 224.
Why does Evanston have more than one area code?
As Evanston used up the numbers available in its original area code (847, in service since 1996), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Evanston number?
Dial all 10 digits — the area code (847 or 224) 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.