Salt Lake City, UT
84121
Salt Lake County County · Utah · Pop. 58,420
Last updated: May 2026
Salt Lake City, Utah (ZIP code 84121) is home to approximately 58,420 residents. The median household income in 84121 is $133,620, which is 89% above the national average of $70,784. The cost of living in 84121 is reflected in its housing market - the median home value is $450,945 and the average rent is $1,669/month. 84121 has a violent crime rate of 135.0 per 100,000 residents, which is 65% below the national average - earning it a safety grade of A+. 84121 is served by with an average school rating of 7.3/10. Air quality in 84121 is rated Good with an average AQI of 30.9. The average commute time in 84121 is 21 minutes, 6 minutes below the national average. Compare 84121 vs national averages and nearby neighborhoods using our free ZipScore intelligence platform.
On This Page
👥 Demographics
Race & Ethnicity
💰 Income & Economy
Affordability Assessment: Renters in this area spend approximately 15% of their income on rent, which is considered very affordable. Home prices are moderately affordable at 3.4x the median income.
🏠 Housing
🔒 Safety & Crime
Salt Lake City (84121) is significantly safer than the national average, with violent crime rates 65% below the US average. This is considered a very safe area.
🎓 Schools & Education
Top Schools in 84121
| School | Type | Rating | Students |
|---|---|---|---|
| Salt Lake City Academy | public | 8/10 | 898 |
| Salt Lake City Middle School | public | 7/10 | 658 |
| Salt Lake City High School | public | 7/10 | 732 |
| St. Mary's School of Salt Lake City | public | 7/10 | 607 |
🌡️ Climate & Weather
🌫️ Air Quality
⚠️ Natural Disaster Risk
🚗 Commute
Nearby ZIP Codes
Compare 84121 With Another ZIP
Pros and Cons of Living in Salt Lake City, UT (84121)
Based on crime, housing, income, schools, and air quality data
✅ Pros
- + Low crime rate - violent crime is 65% below the national average
- + Above-average income - median household income of $133,620
- + Good air quality - average AQI of 30.9 (rated "Good" by EPA standards)
- + Strong schools - average school rating 7.3/10
⚠️ Cons
- − High rent - average $1,669/month, above the national median of $1,163
Data sourced from US Census Bureau, FBI Crime Statistics, and EPA. Individual experiences may vary.
Frequently Asked Questions about ZIP Code 84121
What is the population of 84121? ▼
The population of ZIP code 84121 in Salt Lake City, Utah is approximately 58,420 people.
Is 84121 safe to live in? ▼
Salt Lake City (84121) is significantly safer than the national average, with violent crime rates 65% below the US average. This is considered a very safe area. Safety Grade: A+.
What is the median income in 84121? ▼
The median household income in 84121 (Salt Lake City, Utah) is $133,620. The per capita income is $86,853. The US national median household income is $70,784.
What is the cost of living in 84121? ▼
Renters in this area spend approximately 15% of their income on rent, which is considered very affordable. Home prices are moderately affordable at 3.4x the median income. Median home value: $450,945. Average rent: $1,669/month.
What are schools like in 84121? ▼
Schools in 84121 receive an Education Grade of B+. There are 4 schools with an average rating of 7.3/10 and a student-teacher ratio of 15:1. See the full schools section above for individual school listings.
What is the crime rate in 84121? ▼
The violent crime rate in 84121 is 135.0 per 100,000 residents, which is below the national average of 380.7. Property crime rate: 937.0 per 100k (national avg: 1,958.2).
What is the average rent in 84121? ▼
The median monthly rent in 84121 (Salt Lake City, Utah) is $1,669/month. The national median rent is $1,163/month.
What is the median home value in 84121? ▼
The median home value in 84121 (Salt Lake City, Utah) is $450,945. The national median home value is $303,400.
Is 84121 a good place to live? ▼
84121 (Salt Lake City, Utah) has a ZipScore of 77/100 - our composite score based on safety (25%), affordability (20%), schools (15%), air quality (10%), climate (10%), commute (10%), and disaster risk (10%). This is an excellent neighborhood to live in.
What is the air quality in 84121? ▼
The average Air Quality Index (AQI) in 84121 is 30.9 - rated Good by EPA standards. Average PM2.5 level: 4.6 µg/m³.
Data sourced from U.S. Census Bureau (ACS), FBI Uniform Crime Report, EPA AirNow, FEMA National Risk Index, and Open-Meteo. Last updated: May 2026