Best Places91331, CA Best Neighborhoods
2026–2027 edition · Data updated July 2026
Every neighborhood inside ZIP code 91331, scored on 40 measures of daily life and ranked to fit what matters to you. The coast is close, and the measures below put a number on how close. To work out which city fits you best, start with the best places to live tool.
91331 ranks 24,922nd of 33,110 U.S. zip codes on the BestNeighborhood index. The coast is about 19 minutes away. Its strengths are the weather and big-city access. The cost shows up in education levels, thin health care access, and air quality.
The best neighborhoods in 91331
BestNeighborhood is the only ranking that scores 40 measures of daily life neighborhood by neighborhood and lets you re-weight every one of them yourself.
91331's strengths and weaknesses
91331 ranks near the bottom because several of the basics fall short at once. The weather is the standout, in the top 1% of zip codes. Big-city access and transit follow.
The weak spots are broad rather than narrow: education levels, thin health care access, and air quality all drag on the score. Those are area averages, and the map below shows which parts run well above them.
Where 91331 ranks high
- Nice weatherabout 277 pleasant days a year, better than 99% of zip codes
- Big-city accessBetter than 98% of zip codes
- TransitBetter than 96% of zip codes
- BikingBetter than 94% of zip codes
- Cell coverageBetter than 92% of zip codes
Where 91331 ranks low
- Educational attainmentBetter than only 1% of zip codes
- Healthcare accessBetter than only 2% of zip codes
- Air qualityBetter than only 2% of zip codes
- Voter turnoutBetter than only 3% of zip codes
- Disaster safetyBetter than only 7% of zip codes
What it costs to buy a home in 91331
A household needs to earn about $160,000 a year to comfortably buy the median 91331 home, at 20% down and today's 30-year rate. That runs well above the area's median income of $87,798, so buying stretches a typical household.
Where the monthly payment goes
Assumes a 20% down payment, a 6.6% 30-year fixed rate, and a 28% share of income going to the payment. The rate is the 2026-07-23 30-year fixed average, series MORTGAGE30US from the St. Louis Fed, which publishes Freddie Mac's weekly survey. Against the median home value, property tax uses 91331's effective rate of 0.65%, and insurance is estimated at 0.4% of home value a year.
Renting versus buying
At today's prices and rents, renting stays cheaper than buying across the first 10 years here, so the case for buying rests on staying much longer or on prices rising faster than assumed. The chart tracks the running cost of each.
Who lives in 91331
91331 runs younger than the country, and households here run larger than average.
Residents by age
Racial and ethnic makeup has its own map. See the race and diversity map for 91331.
Who works in 91331, and how
Work in 91331 centers on health care & social and construction. Unemployment is close to the national rate, and jobs are growing.
Largest industries
How people get to work
- Drive or carpool 88%
- Work from home 7%
- Transit, walk, or bike 5%
Life in 91331
91331 has fewer places to eat and drink per resident than most zip codes. The coast is about 19 minutes away. That concentrates in some parts of 91331 and thins out in others, which the map shows.
What the weather is like in 91331, month by month
91331 sees roughly 277 pleasant days a year. July highs average about 90 degrees. January highs sit near 66, with lows near 51. The comfortable stretch runs October through June.
Show the monthly temperatures
| Month | Avg high | Avg | Avg low |
|---|---|---|---|
| January | 66° | 60° | 51° |
| April | 74° | 67° | 57° |
| July | 90° | 82° | 69° |
| October | 82° | 74° | 62° |
Flying in and out of 91331
Bob Hope sits about 5 miles away. It is a medium hub and boarded 3.1 million passengers in 2025, with 54 nonstop destinations.
The best schools in and around 91331
Schools across 91331 average a D+, better than 20% of zip codes.
Top elementary schools
- Valor Academy ElementaryD · 18% proficient
Top middle schools
- Puc Inspire Charter AcademyF · 8% proficient
Top high schools
- Early College Academy-la Trade Tech CollegeB · 50% proficient
- Valley Academy Of Arts And SciencesC+ · 35% proficient
- Sylmar Biotech Health And Engineering MagnetC− · 28% proficient
Grades come from K-12 test scores, with scores projected for schools missing data. See every 91331 school and its grade on SchoolGrade.
91331 measure by measure
Cards are ordered by how much each measure matters to you, so the ones you weighted highest come first. Expand to see every measure. Percentages compare 91331 against the other 33,109 zip codes.
Who 91331 suits
Remote workers
Internet is fast and widely advertised and 7% already work from home.
Common questions about living in 91331
Is 91331 a good place to live?
Using BestNeighborhood's default rankings, 91331 ranks 24,922nd of 33,110 zip codes. It scores highest on the weather, big-city access, and transit, and lowest on education levels and thin health care access. How good it is for you depends on which of those you weight most, which the map lets you set.
Is 91331 expensive to live in?
The median home is worth $624,767. The overall cost of living runs about 35% above the national average. Set against a $87,798 median income, cost of living beats 12% of zip codes.
Is 91331 safe?
91331 is safer than 30% of zip codes. Safety varies a lot by neighborhood. Crime costs an estimated $413 per resident a year.
What is the weather like in 91331?
July highs average about 90 degrees, and January highs near 66 with lows near 51. That works out to about 277 pleasant days a year, more than 99% of zip codes.
Is 91331 good for families?
Schools beat 20% of zip codes, crime safety beats 30%, and childcare runs $1,130 a month.
Is 91331 good for remote workers?
Cost of living against local pay beats 12% of zip codes, and the fastest advertised internet here beats 90% of zip codes. About 7% of workers already work from home.
Compare 91331 with other zip codes
Sources and methodology
Every measure on this page is scored for each neighborhood, then rolled up to 91331. Scores are absolute rather than ranked, which means a 60 in 91331 represents the same real quantity as a 60 anywhere else, and the ranking is a weighted average of those absolutes. The map colors come from a national scale calibrated against a population weighted random sample of 5,000 neighborhoods. That absolute scoring is what no other places-to-live ranking does: it puts a single neighborhood, a town, a metro, and a state on one scale, so the same 40 measures answer both which metro to move to and which street inside it to buy on. Read the full methodology.
91331 detail on BestNeighborhood maps:
- Walk Grade for 91331: walkability, transit, and biking, measured on the real street network rather than by straight line distance.
- Noise in 91331: road, rail, and aviation sound modeling calibrated against federal ground truth measurements.
- Conservative vs liberal map of 91331: precinct level election results apportioned to neighborhoods.
- Mobile and cell coverage in 91331: carrier by carrier coverage behind the cell score.
91331 detail on related sites:
- CrimeGrade: neighborhood crime rates behind the crime safety score.
- ISPreports.org: provider by provider internet availability and advertised speeds.
- CoverageWatch: the car insurance premiums behind the cheap car insurance score.
Federal and public data:
- U.S. Census Bureau American Community Survey: income, home value, rent, vacancy, commute time and mode, educational attainment, home age, age structure, household type, industry, and race.
- NOAA Global Surface Summary of the Day: the daily station record behind the monthly temperatures and the pleasant-day count.
- FAA Passenger Boarding Data: airport size and annual passenger counts.
- Freddie Mac Primary Mortgage Market Survey: the 30-year fixed rate used in the cost-to-buy estimate.
- FBI Crime Data Explorer: reported offenses behind the tangible crime cost estimate.
- U.S. EPA Air Quality System: five year average air quality index.
- FEMA National Risk Index: expected annual loss from natural hazards.
- CDC PLACES: disease burden, preventable risk, and barriers to care.
- National Center for Education Statistics: school enrollment and assessment inputs behind the school grade.
- FCC National Broadband Map: internet and wireless availability.
- U.S. Bureau of Labor Statistics: employment and job growth behind the local economy score.
- Religious activity uses a proprietary religious signal measurement.
Your priorities
Move a slider to say how much a measure matters. Zero turns it off.