PlainZIP

Salt Lake City, UT · standard

ZIP Code 84121

Salt Lake County, Utah — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

41,702
250/sq mi
$115,515
Median income
$659,900
Median home value
53.2%
Bachelor's or higher

The verdict

Salt Lake City pairs an upper-quartile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 11%
household income, US ZIPs
Top 7%
home value, US ZIPs
250
people per sq mi
75%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 84121 against every reporting US ZIP.

ZIP code 84121 is classified by USPS as a standard delivery area and covers roughly 166.7 square miles in Salt Lake City, Salt Lake County, Utah. The area is home to 41,702 residents, producing a population density of 250 people per square mile, and falls within the Denver time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 84121 against Utah and the nation.

On the economic side, the median household income for ZIP 84121 sits at $115,515 (33% above the Utah average), while per-capita income is $59,542. The poverty rate stands at 7.2% and the unemployment rate at 2.9%. On housing, the median home value is $659,900 (53% above the state average) with median rent at $1,774 per month, and 74.9% of occupied units are owner-occupied, a direct signal of whether 84121 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 53.2% of adults hold a bachelor's degree or higher, the median age is 41.1, and the average commute is 22 minutes. We also surface 8 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Salt Lake County, so you can benchmark 84121 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 84121

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 84121.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 84121, Salt Lake City, UT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

41,702

Population

166.7

Area (sq mi)

250

People / sq mi

Denver

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 84121?

41.1

Median Age

50.1%

Male

49.9%

Female

7.7%

Foreign-Born

White 85.9%
African American 0.8%
Asian 3.8%
American Indian or Alaska Native 0.3%
Native Hawaiian or Pacific Islander 0.1%
Two or More Ethnicities 7.3%
Hispanic or Latino 6.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$115,515

Median Household Income

+33% vs state

$59,542

Per Capita Income

7.2%

Poverty Rate

2.9%

Unemployment Rate

21.9 min

Mean Commute Time

How ZIP 84121 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$115,515 Top 11% higher than 89% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 67.3%
Bachelor's Degree or Higher 53.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

16,642

Total Housing Units

15,436

Occupied Units

1,206

Vacant Units

2.51

Avg Household Size

Occupancy Type

Owner 74.9%
Renter 25.1%

$659,900

Median Home Value

+53% vs state

$1,774

Median Rent

1977

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+5.5%

YoY Change (2024)

354

HPI Index (2000 = 100)

+254%

Total Change Since 2000

Home values in ZIP 84121 have increased 5.5% over the past year (2024). Since 2000, this ZIP has seen +254% cumulative appreciation.

Year Annual Change HPI Index
2020 +5.3% 231
2021 +16.5% 269
2022 +20.2% 323
2023 +3.7% 335
2024 +5.5% 354

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 1,594 business establishments in ZIP 84121, employing approximately 22,785 people with a combined annual payroll of $1,938,072,000.

1,594

Businesses

22,785

Employees

$1.9B

Annual Payroll

18

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 317 19.9%
Health care and social assistance 201 12.6%
Finance and insurance 194 12.2%
Real estate and rental and leasing 162 10.2%
Construction 129 8.1%
Accommodation and food services 105 6.6%
Retail trade 101 6.3%
Other services (except public administration) 90 5.7%
Administrative and support and waste management and remediation services 88 5.5%
Educational services 40 2.5%
Wholesale trade 37 2.3%
Information 36 2.3%
Manufacturing 24 1.5%
Arts, entertainment, and recreation 24 1.5%
Transportation and warehousing 23 1.4%
Management of companies and enterprises 10 0.6%
Utilities 5 0.3%
Industries not classified 4 0.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 84121 vs 84109 →

ZIP 84121 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 84121 ranks the most populous — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 84121 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 84121 ranks #6 of 8 neighboring ZIPs — local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
84109 Salt Lake City, UT 23,858 5.3 mi
84092 Sandy, UT 29,525 5.2 mi
84093 Sandy, UT 23,130 7.2 mi
84124 Salt Lake City, UT 21,295 7.0 mi
84117 Salt Lake City, UT 24,305 7.6 mi
84004 Alpine, UT 9,818 9.9 mi
84113 Salt Lake City, UT 245 11.8 mi
84112 Salt Lake City, UT 1,942 12.2 mi

More ZIP Codes in Salt Lake County

84118 standard
Salt Lake City, UT
Pop: 68,295
84119 standard
West Valley City, UT
Pop: 53,077
84095 standard
South Jordan, UT
Pop: 50,566
84120 standard
West Valley City, UT
Pop: 48,956
84081 standard
West Jordan, UT
Pop: 40,732
84020 standard
Draper, UT
Pop: 39,765

Related Areas

Salt Lake County Salt Lake City, UT Utah

Frequently Asked Questions

What county is ZIP code 84121 in? ▼
ZIP code 84121 (Salt Lake City) is located in Salt Lake County, Utah. Salt Lake County contains multiple ZIP codes, see the full list at /counties/salt-lake-ut.
What is the population of ZIP code 84121? ▼
ZIP code 84121 in Salt Lake City, UT has a population of 41,702 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 84121? ▼
The median household income in ZIP 84121 is $115,515, which is 51% above the national average of $76,288.
What is the average home value in ZIP 84121? ▼
The median home value in ZIP 84121 is $659,900, which is 137% above the national average of $278,155.
What is the demographic makeup of ZIP 84121? ▼
The largest racial group in ZIP 84121 is White at 85.9%. Hispanic or Latino residents make up 6.7% of the population.
How many businesses are in ZIP code 84121? ▼
ZIP code 84121 has 1,594 business establishments employing approximately 22,785 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 84121? ▼
The top industries by establishment count in ZIP 84121 are: Professional, scientific, and technical services (317), Health care and social assistance (201), Finance and insurance (194). There are 18 industry sectors represented in total.
How have home values changed in ZIP code 84121? ▼
According to the FHFA House Price Index, home values in ZIP 84121 increased by 5.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 254%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 84121? ▼
In ZIP code 84121, 67.3% of residents aged 25+ have a high school diploma or higher, and 53.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 84121? ▼
The mean commute time for workers in ZIP code 84121 is 21.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 84121? ▼
In ZIP code 84121, approximately 74.9% of occupied housing units are owner-occupied and 25.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 84121? ▼
The poverty rate in ZIP code 84121 is 7.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Salt Lake City, UT

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

Read our methodology to see how this data is sourced, computed, and verified.