NEIGHBORSCORE

Diamond Bar, California · ZIP 91765

Diamond Bar — ZIP 91765

Crime DataSchools

Diamond Bar (91765) scores 60/100 — Fair for California. Safety: Higher reported-crime rate under the available data tier. Schools: Higher reported proficiency and grade-band coverage. A premium market - pricier than most of the state. The typical home value here is $1.04M.

60OUT OF 100

Overall NeighborScore

CFair

Tap a tab to compare 91765 against its city, state, or the nation.

Higher reported-crime rate under the available data tier.

Safety index45/100
Violent crime share19%
Property crime share81%

Higher reported proficiency and grade-band coverage.

School index77/100
Avg math proficiency61%
Avg reading proficiency69%
Schools nearby10

A premium market - pricier than most of the state.

Affordability index37/100
Typical home value$1.04M
Median rent$3,285/mo

How this score is calculated: the NeighborScore composite weights crime 53% and schools 47%, each normalized to the local area. Home affordability is shown for context and is not factored into the overall score. Sources & methodology →

Last refreshed — Schools: Aug 2026 · Real estate: Aug 2026 · Demographics: Jun 2026

Nearby Neighborhoods

Not the right fit? See how adjacent ZIPs score — tap to jump over.

Walnut, CaliforniaWalnutZIP 91789
61▲1 vs here
Pomona, CaliforniaPomonaZIP 91766
49▼11 vs here
Pomona, CaliforniaPomonaZIP 91768
48▼12 vs here
Chino Hills, CaliforniaChino HillsZIP 91709
61▲1 vs here

Real Estate Snapshot

Typical Home Value

$1.04M

Median Rent

$3,285/mo

Days on Market

—

Sale-to-List

—

Typical Home Value — 23 Months

Median Rent — 18 Months

Crime Overview

Total Incidents

277,089

Violent Crime

53,548

Property Crime

223,541

Crime statistics for this area are estimated from FBI-reported county-level data for Los Angeles County, California (2025). This ZIP does not yet have city-specific monthly crime data, so figures reflect the entire county rather than this ZIP alone.

Full Crime Report →

Nearby Schools

Grades
Maple Hill ElementaryKG–05556
81%
82%
Quail Summit ElementaryKG–05696
76%
79%
Chaparral Middle06–081,349
73%
80%
Evergreen ElementaryKG–05709
73%
74%
Castle Rock ElementaryKG–05684
71%
71%
Diamond Bar High09–122,563
70%
78%
Pantera ElementaryKG–06512
68%
78%
Golden Springs ElementaryKG–06388
32%
47%
Armstrong ElementaryKG–06251
32%
52%
Lorbeer Middle07–08688
29%
52%

Directory and latest enrollment: NCES Common Core of Data (SY 2024–25 where reported). Proficiency: U.S. Department of Education EDFacts SY 2021–22; state standards are not directly comparable.

Full School Report →

Demographics

Population

44,779

Median Income

$106K

Homeownership

78%

Median Age

46 yrs

Source: US Census Bureau ACS 5-Year Estimates (2024).

Map

Frequently Asked Questions

ZIP 91765 has a reported-crime score of 45/100. A higher score represents a lower reported-crime rate under the best available data tier for this ZIP; it is not a guarantee of safety. Review the crime report and current local police data before making a decision.
ZIP 91765 has a school score of 77/100. The index combines reported SY 2021–22 math and reading proficiency with grade-band coverage. Nearby or county-level estimates may be used where ZIP-level reporting is sparse, and state assessment standards are not directly comparable.
The latest home value or sale-price figure available for ZIP 91765 is approximately $1.04M. The profile identifies the underlying source; Zillow ZHVI is a typical home value measure, while Redfin data is a median sale-price measure. These are different metrics and may lag current listings.
ZIP 91765 in Diamond Bar has an overall NeighborScore of 60/100. It combines the crime score (53%) and school score (47%); affordability is context only. Use the component data and its coverage notes rather than treating the composite as a complete measure of livability.