Salt Lake City, UT 84121 ZIP Code Profile


ZIP Code 84121: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Salt Lake City, UT 84121

Acceptable Alternative
Brighton, UT 84121
Cottonwd Hts, UT 84121
Cottonwood, UT 84121
Cottonwood Heights, UT 84121
Cottonwood Heights City, UT 84121
Holladay, UT 84121
Holladay Cottonwood, UT 84121
Holladay Ctwd, UT 84121
Murray, UT 84121
Salt Lake Cty, UT 84121
Solitude, UT 84121

Not Acceptable, USPS
Slc, UT 84121

  • ZIP Code Type: STANDARD
  • County: Salt Lake County
  • Centroid: Latitude 40.622, Longitude -111.824
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes
  • Businesses Addresses: 916
  • PO Box Addresses: 0
  • Residential Addresses: 16,164
    • Multi-Family Addresses: 1,888
    • Single Family Addresses: 14,276

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


84121 ZIP Code Map

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Salt Lake City, UT 84121 Data & Demographics (As of July 1, 2017)


Total Population 42,320
Daytime Population: Workers 19,471
Daytime Population: Residents 19,727
Total Daytime Population (TDP) 39,198
Ratio TDP/Total Population1 0.93
Population in Households 42,231
Population in Familes 34,992
Population in Group Qrtrs 89
Population Density2 623
Diversity Index3 28


Median Household Income $80,175
Average Household Income $111,115
Per Capita Income $41,360


Total Housing Units 17,185 (100%)
Owner Occupied HU 11,467 (66.7%)
Renter Occupied HU 4,258 (24.8%)
Vacant Housing Units 1,460 ( 8.5%)
Median Home Value $341,258
Average Home Value $398,783


Total Households 15,725
Average Household Size 2.69
Family Households 11,073
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.86% 0.92%
Households 0.74% 0.91%
Families 0.54% 0.77%
Median Household Income   1.62%
Per Capita Income   1.93%

Salt Lake City, UT 84121 - Peer Comparisons by Rank and Percentile

The table below compares 84121 to the other 295 ZIP Codes in Utah by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 20 94th
Population Density # 74 75th
Diversity Index # 150 49th
Median Household Income # 33 89th
Per Capita Income # 10 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE Utah Census Data Comparison Tool.

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