Where is the 320 area code?

Area code 320 covers Minnesota, on Central Time.

What time zone is area code 320 in?

Numbers in the 320 area code sit in Central Time.

Is 320 a toll-free or scam area code?

No. 320 is a geographic North American Numbering Plan area code assigned to Minnesota. Toll-free numbers use 800, 833, 844, 855, 866, 877 and 888. A call from 320 can still be spoofed, so treat unexpected calls with the usual caution.

Area code lookup

320 area code

Where the 320 area code is, which cities and counties it serves, the local time zone and the overlay codes dialled alongside it.

State: MN
Codes in state: 7
Overlays & neighbours: 6
Time zone: Central Time

Quick answer

Area code 320 is a geographic area code assigned to Minnesota under the North American Numbering Plan. Minnesota observes Central Time, and the state also holds 6 other area codes: 218, 507, 612, 651, 763, 952.

Largest cities in Minnesota

The largest places in Minnesota. Each links to its full local profile: population, income, housing and sales tax.

City	Population
Minneapolis city	426,845
St. Paul city	307,762
Rochester city	121,638
Bloomington city	88,838
Duluth city	86,863
Brooklyn Park city	84,349
Plymouth city	79,526
Woodbury city	76,945
Lakeville city	72,480
Blaine city	71,261
Maple Grove city	70,539
St. Cloud city	69,926

All Minnesota cities All Minnesota ZIP codes Minnesota sales tax

Related area codes

Codes that share or border the same calling area.

320 area code FAQ

The questions people ask about this code.

Where is area code 320?

320 is a geographic area code in Minnesota.

What time is it in the 320 area code?

320 observes Central Time.

Is 320 a scam area code?

No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.

Sources & transparency

North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.