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Utah Area Codes

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State: Utah (UT)
Area Codes: 3
Timezone: Mountain (MDT)
Current Time: 3:37 AM

About Utah Area Codes

Utah (UT) uses 3 telephone area codes to serve its residents and businesses. With an estimated population of 4,969,594, Utah is one of the smaller states in the North American Numbering Plan (NANP). The state is primarily in the Mountain Time Zone (MDT). The current local time in Utah is 3:37 AM.

The largest cities in Utah include Salt Lake City (pop. 1,098,526), Ogden (pop. 578,523), Provo (pop. 500,617), West Valley City (pop. 135,248) and St. George (pop. 120,899) . Utah has 29 counties spread across its territory. Each area code in UT covers a geographic region of the state, with some areas using overlay codes that share the same geographic territory as an existing area code.

When calling a Utah phone number from outside the area code, you must dial the full 10-digit number: the 3-digit area code followed by the 7-digit local number. Many parts of Utah now require 10-digit dialing even for local calls due to overlay area codes and the nationwide 988 Suicide & Crisis Lifeline implementation.

All Utah Area Codes

The table below lists every active area code in Utah, along with the major city served and other cities covered by each code.

Area Code Major City Other Cities
385 Salt Lake City Provo, West Valley City, Orem, Lehi, Murray, Draper, Riverton, Kamas
435 Salt Lake City Provo, West Valley City, St. George, West Jordan, Logan, Draper, Cedar City, Tooele and more
801 Salt Lake City Ogden, Provo, West Valley City, West Jordan, Orem, Layton, Lehi, Murray and more

Largest Cities in Utah

These are the largest cities in Utah by population, along with their primary area codes and counties.

City Population County
Salt Lake City 1,098,526 Salt Lake County
Ogden 578,523 Weber County
Provo 500,617 Utah County
West Valley City 135,248 Salt Lake County
St. George 120,899 Washington County
West Jordan 116,480 Salt Lake County
Logan 101,616 Cache County
Orem 97,828 Utah County
Sandy 96,380 Salt Lake County
Layton 78,014 Davis County

Frequently Asked Questions

Utah has 3 active area codes. These include 385 (Salt Lake City), 435 (Salt Lake City) and 801 (Salt Lake City) .

Utah is primarily in the Mountain Time Zone (MDT). The current local time is 3:37 AM.

The area code covering the most cities in Utah is 435, which serves Salt Lake City and 104+ other communities.

Yes, most areas in Utah now require 10-digit dialing (area code + 7-digit number) for all local calls. This requirement was implemented across the United States starting in October 2021 to support the 988 Suicide & Crisis Lifeline. Even if you are calling within the same area code, you need to dial all 10 digits.

To call a Utah number from within the United States, dial the area code followed by the 7-digit phone number (e.g., 385-XXX-XXXX). From outside the US, dial your country's exit code, then 1 (the US country code), then the full 10-digit number.

Utah has 29 counties. The state's total estimated population is 4,969,594, spread across these counties and served by 3 area codes.

Salt Lake City is served by area code 385, 435 and 801 .
Utah at a Glance
  • Abbreviation UT
  • Area Codes 3
  • Population 4,969,594
  • Counties 29
  • Cities 322
  • Time Zone Mountain
  • Current Time 3:37 AM
Quick Reference
  • 385 Salt Lake City
  • 435 Salt Lake City
  • 801 Salt Lake City