Best Places91748, CA Best Neighborhoods
2026–2027 edition · Data updated July 2026
Every neighborhood inside ZIP code 91748, 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.
91748 ranks 14,481st of 33,110 U.S. zip codes on the BestNeighborhood index. It scores highest on the weather by a wide margin, and air quality ranks lowest.
The best neighborhoods in 91748
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.
91748's strengths and weaknesses
Where 91748 ranks high
- Nice weatherabout 266 pleasant days a year, better than 99% of zip codes
- Big-city accessBetter than 98% of zip codes
- Health outlookBetter than 93% of zip codes
- TransitBetter than 90% of zip codes
- Low vacancyBetter than 90% of zip codes
Where 91748 ranks low
- Air qualityBetter than only 3% of zip codes
- Voter turnoutBetter than only 9% of zip codes
- Low income/sales/gas taxBetter than only 10% of zip codes
- Cheap car insuranceBetter than only 12% of zip codes
- Disaster safetyBetter than only 12% of zip codes
What it costs to buy a home in 91748
A household needs to earn about $215,000 a year to comfortably buy the median 91748 home, at 20% down and today's 30-year rate. That runs well above the area's median income of $92,157, 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 91748's effective rate of 0.73%, 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 91748
91748 runs older 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 91748.
Who works in 91748, and how
Work in 91748 centers on health care & social and retail trade. Unemployment is close to the national rate, and jobs are growing.
Largest industries
How people get to work
- Drive or carpool 80%
- Work from home 14%
- Transit, walk, or bike 6%
Life in 91748
91748 has more restaurants and bars per resident than 90% of zip codes and more parkland per resident than 95% of zip codes. The coast is about 28 minutes away. Dining, parks, and nightlife concentrates in some parts of 91748 and thins out in others, which the map shows.
What the weather is like in 91748, month by month
91748 sees roughly 266 pleasant days a year. July highs average about 87 degrees. January highs sit near 71, with lows near 46. The comfortable stretch runs September through July.
Show the monthly temperatures
| Month | Avg high | Avg | Avg low |
|---|---|---|---|
| January | 71° | 57° | 46° |
| April | 77° | 64° | 54° |
| July | 87° | 74° | 66° |
| October | 85° | 70° | 58° |
Flying in and out of 91748
Ontario International sits about 18 miles away. It is a medium hub and boarded 3.5 million passengers in 2025, with 62 nonstop destinations.
The best schools in and around 91748
Schools across 91748 average a C+, better than 54% of zip codes.
Top high schools
- Walnut HighA · 67% proficient
- John A. Rowland HighA− · 59% proficient
- Nogales HighB− · 43% proficient
Grades come from K-12 test scores, with scores projected for schools missing data. See every 91748 school and its grade on SchoolGrade.
91748 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 91748 against the other 33,109 zip codes.
Who 91748 suits
Remote workers
Internet is fast and widely advertised and 14% already work from home.
Common questions about living in 91748
Is 91748 a good place to live?
Using BestNeighborhood's default rankings, 91748 ranks 14,481st of 33,110 zip codes. It scores highest on the weather, big-city access, and population health, and lowest on air quality and civic engagement. How good it is for you depends on which of those you weight most, which the map lets you set.
Is 91748 expensive to live in?
The median home is worth $830,445. The overall cost of living runs about 35% above the national average. Set against a $92,157 median income, cost of living beats 21% of zip codes.
Is 91748 safe?
91748 is safer than 36% of zip codes. Safety varies a lot by neighborhood. Crime costs an estimated $385 per resident a year.
What is the weather like in 91748?
July highs average about 87 degrees, and January highs near 71 with lows near 46. That works out to about 266 pleasant days a year, more than 99% of zip codes.
Is 91748 good for families?
Schools beat 54% of zip codes, crime safety beats 36%, and childcare runs $1,130 a month.
Compare 91748 with other zip codes
Sources and methodology
Every measure on this page is scored for each neighborhood, then rolled up to 91748. Scores are absolute rather than ranked, which means a 60 in 91748 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.
91748 detail on BestNeighborhood maps:
- Walk Grade for 91748: walkability, transit, and biking, measured on the real street network rather than by straight line distance.
- Noise in 91748: road, rail, and aviation sound modeling calibrated against federal ground truth measurements.
- Conservative vs liberal map of 91748: precinct level election results apportioned to neighborhoods.
- Mobile and cell coverage in 91748: carrier by carrier coverage behind the cell score.
91748 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.