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Zip Code 84121 — Salt Lake City, UT

84121 is a ZIP Code associated with Salt Lake City, UT, located within Salt Lake. The postal region supports an estimated population of 38,912 residents across Data Pending housing units, with a population density of 233.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.625570, -111.698640)

Data MetricLocal Statistic
Postal / Zip Code84121
Primary CitySalt Lake City
State / ProvinceUT
CountySalt Lake
Total Population38,912
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density233.1 people/sq mi
TimezoneAmerica/Denver

How 84121 Compares

MetricZIP 84121Salt Lake CountyUT State Average
Population38,9121,199,9213,390,495
Median IncomeData PendingN/AN/A
Population Density233.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 84092Sandy5.2 mi27,651N/A
Zip 84109Salt Lake City5.3 mi25,544N/A
Zip 84124Salt Lake City6.5 mi22,609N/A
Zip 84093Sandy7.1 mi23,871N/A
Zip 84117Salt Lake City7.6 mi24,980N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →