| City: | Salt Lake City, Utah |
| City Alias: | Salt Lake Cty |
| Names to Avoid: | Questar Gas Company, Slc |
| County: | Salt Lake County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 10:13:40 AM |
| Population: | No Population Data |
| Area Codes: | 385 / 801 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 40.7606, -111.8903 |
| Quick Link: |
Questar Gas Company, a natural gas utility serving approximately 90% of Utah households, has operated under dedicated ZIP code 84139 in Salt Lake City, Salt Lake County for over two decades. Originally a Salt Lake City-based public utility, Questar was acquired by Dominion Resources in 2016 and subsequently sold to Enbridge Inc. in June 2024 for $4.3 billion. The utility now operates as Enbridge Gas Utah, though the postal designation remains associated with the historic Questar name.
Located in the Central City neighborhood of Downtown Salt Lake City, this commercial postal designation serves the company's correspondence needs for its network spanning over 30,000 miles of gas distribution mains and service lines throughout Utah, southeastern Idaho, and southwestern Wyoming. The single ZIP+4 delivery code reflects a centralized mail operation rather than distributed facilities. Census demographic data is not available for this ZIP code, consistent with its commercial function. Salt Lake City serves as the valid mailing city for this designation.
ZIP Code 84139 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 0Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 84139 is located in Salt Lake County, Utah, within the Salt Lake City-Murray, UT Metropolitan Statistical Area (CBSA 41620) and Utah's 1st Congressional District. This Metro area has a population of 1,124,197 people, about 0.00% of whom live in ZIP Code 84139. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Salt Lake City-Murray, UTSource: Census |
| CBSA Number: | 41620Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 1,124,197Source: Census |
| MSA: | Salt Lake City-Ogden, UT MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 19560.79 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4967000Source: Census |
| Place Name: | Salt Lake City city; UtahSource: Census |
We could not locate which school district 84139 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.