San Francisco, CA
94121
San Francisco County County · California · Pop. 36,720
Last updated: May 2026
San Francisco, California (ZIP code 94121) is home to approximately 36,720 residents. The median household income in 94121 is $114,270, which is 61% above the national average of $70,784. The cost of living in 94121 is reflected in its housing market - the median home value is $421,516 and the average rent is $1,798/month. 94121 has a violent crime rate of 179.0 per 100,000 residents, which is 53% below the national average - earning it a safety grade of A+. 94121 is served by with an average school rating of 7.1/10. Air quality in 94121 is rated Good with an average AQI of 28.8. The average commute time in 94121 is 20 minutes, 8 minutes below the national average. Compare 94121 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 19% of their income on rent, which is considered very affordable. Home prices are moderately affordable at 3.7x the median income.
🏠 Housing
🔒 Safety & Crime
San Francisco (94121) is significantly safer than the national average, with violent crime rates 53% below the US average. This is considered a very safe area.
🎓 Schools & Education
Top Schools in 94121
| School | Type | Rating | Students |
|---|---|---|---|
| San Francisco Charter School | public | 7/10 | 525 |
| Lincoln Elementary | public | 7/10 | 642 |
| Jefferson Middle School | public | 7/10 | 950 |
| Washington High School | public | 6/10 | 677 |
🌡️ Climate & Weather
🌫️ Air Quality
⚠️ Natural Disaster Risk
🚗 Commute
Nearby ZIP Codes
Compare 94121 With Another ZIP
Pros and Cons of Living in San Francisco, CA (94121)
Based on crime, housing, income, schools, and air quality data
✅ Pros
- + Low crime rate - violent crime is 53% below the national average
- + Above-average income - median household income of $114,270
- + Good air quality - average AQI of 28.8 (rated "Good" by EPA standards)
- + Strong schools - average school rating 7.1/10
- + Short commute times - average 20 minutes
⚠️ Cons
- − High rent - average $1,798/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 94121
What is the population of 94121? ▼
The population of ZIP code 94121 in San Francisco, California is approximately 36,720 people.
Is 94121 safe to live in? ▼
San Francisco (94121) is significantly safer than the national average, with violent crime rates 53% below the US average. This is considered a very safe area. Safety Grade: A+.
What is the median income in 94121? ▼
The median household income in 94121 (San Francisco, California) is $114,270. The per capita income is $74,276. The US national median household income is $70,784.
What is the cost of living in 94121? ▼
Renters in this area spend approximately 19% of their income on rent, which is considered very affordable. Home prices are moderately affordable at 3.7x the median income. Median home value: $421,516. Average rent: $1,798/month.
What are schools like in 94121? ▼
Schools in 94121 receive an Education Grade of B. There are 4 schools with an average rating of 7.1/10 and a student-teacher ratio of 15:1. See the full schools section above for individual school listings.
What is the crime rate in 94121? ▼
The violent crime rate in 94121 is 179.0 per 100,000 residents, which is below the national average of 380.7. Property crime rate: 788.0 per 100k (national avg: 1,958.2).
What is the average rent in 94121? ▼
The median monthly rent in 94121 (San Francisco, California) is $1,798/month. The national median rent is $1,163/month.
What is the median home value in 94121? ▼
The median home value in 94121 (San Francisco, California) is $421,516. The national median home value is $303,400.
Is 94121 a good place to live? ▼
94121 (San Francisco, California) has a ZipScore of 75/100 - 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 94121? ▼
The average Air Quality Index (AQI) in 94121 is 28.8 - rated Good by EPA standards. Average PM2.5 level: 6.3 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