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Living in Diamond Bar

In July 2026, owner occupation was 77.3% and the vacancy rate was 5.08%. The population of Diamond Bar, in the United States, was 53,355 in July 2026. There were 40,063 physicians per 100,000 residents in 2026.

Which United States-wide rules apply when you move to Diamond Bar?

National rules stay on the country page instead of being relabelled as city data.

Visa and entry rulesPassport-specific entry and national residence context.BenefitsCountry-wide eligibility and official application routes.Taxes in United StatesNational rates and thresholds that apply in Diamond Bar.Healthcare eligibilityCountry-wide insurance and residence conditions.

Housing and cost

Median gross rent was US$2,521 per month, while the median home value was US$902,200 in July 2026. 65.1% of renter households spent at least 30% of income on housing in July 2026.

City-level rent is published below; no city-level cost-of-living basket is published for Diamond Bar yet.

MetricValuePeriodSource
G02 Median Gross Rent Usd$2,521/month4 Jul 2026ACS median gross rent1Official
Households spending over 30% of income on rent65.1 %4 Jul 2026ACS median gross rent1Official
G02 Vacancy Rate Pct5.08 %4 Jul 2026ACS median gross rent1Official
Property crime per 100,000 residents1,611 per 100,000 people1 Jul 2026FBI CDE/UCR crime statistics8Official
Median monthly rent2,216 EUR/month31 Dec 2024Census Reporter mirror of ACS 2024 5-year tables18Supplemental estimate · Supplemental context
Safety City Property Crime Count844 offenses/year31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)9Official

Worked out from these numbers

How international is the population?

48.6% of residents hold a foreign nationality — 25,231 people of 51,884 people. This counts nationality, not place of birth, so long-settled residents who naturalised are not in it.

Uses a supplemental estimate, so treat it as indicative.

Work and income

Median household income was US$108,281 a year in July 2026.

Unemployment across cities in United StatesUnemployment in Diamond Bar is 4.9%. Of 2,065 cities with data, 1,200 have unemployment of 0 to under 5%.
unemployment rate, % · measured cities in United States per band1200 cities: 0% to under 5%12000–5Diamond Bar 4.9%742 cities: 5% to under 10%7425–1095 cities: 10% to under 15%9510–1525 cities: 15% to under 20%2515–202 cities: 20% to under 25%220–251 city: 25% to under 30%125–30

Unemployment rate (%)

MetricValuePeriodSource
G03 Median Household Income Usd108,281 USD/year4 Jul 2026ACS total population2Official
G10 Broadband Cable Fiber Dsl Pct79.39 %4 Jul 2026ACS total population2Official
G10 Broadband Subscription Pct96.03 %4 Jul 2026ACS total population2Official
G10 Internet Without Subscription Pct1.73 %4 Jul 2026ACS total population2Official
G10 No Internet Pct2.21 %4 Jul 2026ACS total population2Official
G10 Satellite Internet Pct13.25 %4 Jul 2026ACS total population2Official
Median gross salary3,946 EUR/month31 Dec 2024Census Reporter ACS 2020-2024 5-year, table B20002 (underlying U.S. Census Bureau ACS)17Community estimate · Supplemental context
Unemployment rate4.88 %31 Dec 2024Census Reporter mirror of ACS 2024 5-year tables18Supplemental estimate · Supplemental context

Public employment service

No exact public employment office is currently linked to Diamond Bar. The verified national service may still offer online registration, job search or an official office finder.

Country-level information

American Job Centers — Public employment service

U.S. Department of Labor Employment and Training Administration

Job Search
Open official service
Open the United States service overview

Country-level service information is not treated as proof of a physical office in Diamond Bar. Sources checked through 10 Aug 2026.

Family and education

MetricValuePeriodSource
G07 High School Or Higher Share Pct92.12 %4 Jul 2026ACS median gross rent1Official
Schools56 schools30 Jun 2026NCES CCD public school count12Official source, approximated value · Supplemental context · school district
G07 School Enrollment Share Pct25.45 %4 Jul 2026ACS median gross rent1Official

Healthcare

MetricValuePeriodSource
G06 Mental Health Provider Ratio1,590 ratio30 Jun 2026HRSA mental health provider ratio11Official
Physicians per 100,000 residents40,063 per 100,000 people30 Jun 2026HRSA mental health provider ratio11Official
G06 Preventable Hospitalization Rate2,572 per 100,000 people30 Jun 2026HRSA mental health provider ratio11Official

Yes — migrants can receive medical care in Diamond Bar when the national insurance or residence conditions are met.

Healthcare access follows the country-wide insurance rules; local capacity facts remain city data and are not used as proof of eligibility.

Open the official coverage guide
Country rule verified 2026-08-03.

Safety

Recorded crime across major citiesDiamond Bar highlighted among comparable cities
Recorded crime across major cities with Diamond Bar highlighted5,457Philadelphia5,442Houston5,218San Antonio4,012Chicago4,010Dallas3,709Austin3,158Fort Worth3,125Phoenix3,039New York2,212Los Angeles2,082San Diego1,940Diamond Barrecorded incidents per 100k residents
MetricValuePeriodSource
Recorded incidents per 100,000 residents1,940 offences per 100,000country median 1,58931 Dec 2024FBI Crime Data Explorer / Uniform Crime Reporting10Official
Violent crime per 100,000 residents127.7 per 100,000 people1 Jul 2026FBI CDE/UCR crime statistics8Official
Safety City Violent Crime Count64 offenses/year31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)9Official

Mobility and administration

MetricValuePeriodSource
G05 Commute33.34 minutes4 Jul 2026ACS total population2Official
G09 Bicycle Commute Share Pct0.26 %4 Jul 2026ACS total population2Official
G09 Transit Commute Share Pct1.02 %4 Jul 2026ACS total population2Official
G09 Walk Commute Share Pct0.35 %4 Jul 2026ACS total population2Official
Nearest airportPOC3 Aug 2026OurAirports15Official
Distance to nearest airport7 km3 Aug 2026OurAirports15Official

Language courses and integration

No exact city-level course record is currently published for Diamond Bar. These verified national programmes may still apply; use the official programme page to check local availability.

Country-level information

Adult Education and English Language Acquisition (AEFLA) — State Language Course

U.S. Department of Education

For adult learners, adult English-language learners.

EnglishIn Person, Online, Hybridvaries
Open official information

USCIS English and citizenship class finder — Civic Orientation

U.S. Citizenship and Immigration Services

For immigrants, future citizens.

EnglishIn Person, Onlinevaries
Open official information
Open the full United States section
National programme information is not treated as proof of a course location in Diamond Bar.

Climate and air quality

Temperature through the yearAverage daytime high and night-time low, °C
Diamond Bar average monthly daytime high and night-time low temperature, °C0°10°20°30°40°JFMAMJJASOND34°5°Daytime highNight-time low
Rainfall through the yearAverage monthly precipitation, mm
Diamond Bar average monthly precipitation, mm030609012074105542562010251958JFMAMJJASONDmm
Air quality vs health guidelinesAnnual means against WHO 2021 guidelines and EU legal limits
Diamond Bar annual air pollutant levels against WHO 2021 guidelines and EU legal limitsCity valueWHO guidelineEU limit52515.0PM2.5µg/m³

City values from the published air-quality observations. WHO 2021 guidelines and EU limit values are published constants.

PM2.5 across cities in United StatesAnnual PM2.5 in Diamond Bar is 15.0 µg/m³. Of 968 cities with data, 262 have annual PM2.5 of 6 to under 7 µg/m³.
annual PM2.5, µg/m³ · measured cities in United States per band1 city: 1 µg/m³ to under 2 µg/m³11–22 cities: 2 µg/m³ to under 3 µg/m³22–331 cities: 3 µg/m³ to under 4 µg/m³313–451 cities: 4 µg/m³ to under 5 µg/m³514–5135 cities: 5 µg/m³ to under 6 µg/m³1355–6262 cities: 6 µg/m³ to under 7 µg/m³2626–7252 cities: 7 µg/m³ to under 8 µg/m³2527–8124 cities: 8 µg/m³ to under 9 µg/m³1248–958 cities: 9 µg/m³ to under 10 µg/m³589–1033 cities: 10 µg/m³ to under 11 µg/m³3310–114 cities: 11 µg/m³ to under 12 µg/m³411–124 cities: 12 µg/m³ to under 13 µg/m³412–135 cities: 13 µg/m³ to under 14 µg/m³513–143 cities: 14 µg/m³ to under 15 µg/m³314–153 cities: 15 µg/m³ to under 16 µg/m³315–16Diamond Bar 15.0

Annual PM2.5 (µg/m³)

MetricValuePeriodSource
PM2.5 — annual mean15 µg/m³31 Dec 2024EPA AQS annual PM2.5 monitor data 202419Supplemental estimate · Supplemental context
Average daytime high by monthJan 19.94 · Feb 19.61 · Mar 22.22 · Apr 24.33 · May 25.78 · Jun 29.06 · Jul 32.39 · Aug 33.56 · Sep 31.5 · Oct 26.94 · Nov 23.06 · Dec 19.39 °C31 Dec 1991NOAA National Centers for Environmental Information14Official
Average night-time low by monthJan 6.17 · Feb 6.94 · Mar 8.33 · Apr 9.78 · May 12.22 · Jun 14 · Jul 16.83 · Aug 17.06 · Sep 15.78 · Oct 12.17 · Nov 8.33 · Dec 5.28 °C31 Dec 1991NOAA National Centers for Environmental Information14Official
Average temperature by monthJan 13.06 · Feb 13.28 · Mar 15.28 · Apr 17.06 · May 19 · Jun 21.56 · Jul 24.61 · Aug 25.28 · Sep 23.67 · Oct 19.56 · Nov 15.67 · Dec 12.33 °C31 Dec 1991NOAA National Centers for Environmental Information14Official
Average precipitation by monthJan 73.91 · Feb 105.4 · Mar 53.85 · Apr 24.64 · May 5.59 · Jun 1.52 · Jul 0 · Aug 0.762 · Sep 0.254 · Oct 24.64 · Nov 18.8 · Dec 58.17 mm31 Dec 1991NOAA National Centers for Environmental Information14Official
G04 Air Quality Pm25 Max Ug M3108.3 µg/m³1 Jul 2026EPA AirData PM2.5 annual mean7Official source, approximated value · Supplemental context · county
G04 Air Quality Pm25 Mean Annual Ug M39.87 µg/m³1 Jul 2026EPA AirData PM2.5 annual mean7Official source, approximated value · Supplemental context · county
G04 Air Quality Pm25 Monitor Count20 monitors1 Jul 2026EPA AirData PM2.5 annual mean7Official source, approximated value · Supplemental context · county
G11 Annual Precipitation Mm595.3 mm30 Jun 2026NOAA GHCN-Daily climate normals13Official source, approximated value · Supplemental context · station observation
G11 Max Temp C Jul24.71 °C30 Jun 2026NOAA GHCN-Daily climate normals13Official source, approximated value · Supplemental context · station observation
Average annual temperature17.65 °C30 Jun 2026NOAA GHCN-Daily climate normals13Official source, approximated value · Supplemental context · station observation
G11 Min Temp C Jan12.91 °C30 Jun 2026NOAA GHCN-Daily climate normals13Official source, approximated value · Supplemental context · station observation

Cities of a similar size in United States

Closest published populations, for a like-for-like comparison.

All United States cities
Collierville51,909 residentsBurien51,859 residentsOcoee51,932 residentsNovato51,947 residentsDunwoody51,792 residentsGoose Creek52,010 residents

Population and city profile

Who lives hereResidents by nationality, % of population
Diamond Bar residents by nationalityBy nationalityNational passport51.4%Foreign residents48.6%

Calculated from the population and foreign-resident facts on this page.

MetricValuePeriodSource
Foreign-resident share14.2 %31 Dec 2020Census Reporter (underlying U.S. Census ACS)5Official
Foreign residents25,231 people31 Dec 2024Census Reporter mirror of ACS 2024 5-year tables18Supplemental estimate · Supplemental context
Population density1,346 people/km²31 Dec 2025Census Reporter / U.S. Census Bureau6Official
Population51,884 people31 Dec 2025U.S. Census Bureau, Population Estimates Program16Official
Safety City Crime Covered Population51,635 people31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)9Official

Is Diamond Bar a good place to live?

There is no universal answer. The profile scores below show who the available published evidence may suit; they are a decision aid, not a personal recommendation.

Try your profile
Remote worker42%strong on work, weak on air quality · range 28–56%
Skilled employee59%strong on work, weak on safety · range 47–71%
Student45%strong on education, weak on housing · range 32–58%
Family46%strong on family, weak on housing · range 35–57%
Retirement42%strong on legal route, weak on admin · range 29–55%
Foreign residents25,231 people31 Dec 2024Independent source · Census Reporter mirror of ACS 2024 5-year tables
Population51,884 people31 Dec 2025Official source · U.S. Census Bureau, Population Estimates Program
Households spending over 30% of income on rent65.1 %4 Jul 2026Official source · ACS median gross rent
Median monthly rent2,216 EUR/month31 Dec 2024Independent source · Census Reporter mirror of ACS 2024 5-year tables
Property crime per 100,000 residents1,611 per 100,000 people1 Jul 2026Official source · FBI CDE/UCR crime statistics
Median gross salary3,946 EUR/month31 Dec 2024Community source · Census Reporter ACS 2020-2024 5-year, table B20002 (underlying U.S. Census Bureau ACS)
Every value keeps its source, geographic scope and verification date · Last checked 2026-09-11

Additional context

MetricValuePeriodSource
G02 Median Home Value Usd902,200 USD4 Jul 2026ACS median gross rent1Official
Owner-occupied homes77.3 %4 Jul 2026ACS median gross rent1Official
G03 Labour61.06 %4 Jul 2026ACS total population2Official
Residents born abroad47.29 %4 Jul 2026ACS total population2Official
G05 Naturalized Citizen Share Pct33.09 %4 Jul 2026ACS total population2Official
G05 Non Citizen Share Pct14.2 %4 Jul 2026ACS total population2Official
G06 Flu Vaccination Coverage Pct65.54 %30 Jun 2026CDC BRFSS flu vaccination coverage3Official
G06 Mammography Screening Pct76.4 %30 Jun 2026CDC mammography screening rate4Official
G06 Uninsured Share Pct3.38 %4 Jul 2026ACS median gross rent1Official
G07 Bachelors Or Higher Share Pct52.82 %4 Jul 2026ACS median gross rent1Official
G08 Reporting Agency Count1 agencies1 Jul 2026FBI CDE/UCR crime statistics8Official
G09 Households With Vehicle Available Pct97.63 %4 Jul 2026ACS median gross rent1Official
G09 Ntd Agency Count0 agencies4 Jul 2026ACS total population2Official
G09 Total Workers 16plus25,381 workers4 Jul 2026ACS total population2Official
G09 Work From Home Share Pct18.45 %4 Jul 2026ACS total population2Official
G10 Cellular Data Plan Pct92.69 %4 Jul 2026ACS total population2Official

Common questions

Answered from the published values on this page, each with its source and date.

What is the unemployment rate in Diamond Bar?

The unemployment rate is 4.88 %. This is a supplemental estimate, not an official municipal measurement. Source: Census Reporter mirror of ACS 2024 5-year tables.

Is the air quality good in Diamond Bar?

The annual PM2.5 mean is 15 µg/m³. The WHO 2021 guideline is 5 µg/m³ and the EU limit value is 25 µg/m³, so this reading is above the WHO guideline but within the EU limit. This is a supplemental estimate, not an official municipal measurement. Source: EPA AQS annual PM2.5 monitor data 2024.

How safe is Diamond Bar?

Police recorded 1,940 offences per 100,000. This counts all offences, so it is not comparable with a violent-crime-only rate from another source. Source: FBI Crime Data Explorer / Uniform Crime Reporting.

How many people live in Diamond Bar?

The published population is 51,884 people. Source: U.S. Census Bureau, Population Estimates Program.

How many foreign residents live in Diamond Bar?

25,231 people residents hold a foreign nationality. This is a supplemental estimate, not an official municipal measurement. Source: Census Reporter mirror of ACS 2024 5-year tables.

Is Diamond Bar a good place to live?

Diamond Bar may suit different people for different reasons. The page's profile scores compare published cost, work, housing, safety, healthcare and other available factors; they are a decision aid, not a universal recommendation.

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation
ImmigrationDB. (2026, September 12). Diamond Bar, United States: rent, salary [ImmigrationDB compilation; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0]. ImmigrationDB. https://immigrationdb.com/cities/us/diamond-bar/ Retrieved 2026-09-12. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/
BibTeX citation
@misc{immigrationdb_immigrationdb_diamond-bar-united-states-rent-salary_8de9584842e0,
  author = {ImmigrationDB},
  title = {Diamond Bar, United States: rent, salary},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-09-12},
  version = {approved-static-d7ed373c115d60d0},
  snapshot = {approved-static-d7ed373c115d60d0},
  url = {https://immigrationdb.com/cities/us/diamond-bar/},
  note = {Retrieved 2026-09-12. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
Markdown citation
[Diamond Bar, United States: rent, salary](https://immigrationdb.com/cities/us/diamond-bar/) — ImmigrationDB; ImmigrationDB; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0; retrieved 2026-09-12; built 2026-09-12.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

JSON Markdown
  1. ACS median gross rent api.censusreporter.org · checked 2026-07-04
  2. ACS total population api.censusreporter.org · checked 2026-07-04
  3. CDC BRFSS flu vaccination coverage data.cdc.gov · checked 2026-06-30
  4. CDC mammography screening rate data.cdc.gov · checked 2026-06-30
  5. Census Reporter (underlying U.S. Census ACS) api.censusreporter.org · checked 2026-08-03
  6. Census Reporter / U.S. Census Bureau api.censusreporter.org · checked 2026-08-03
  7. EPA AirData PM2.5 annual mean aqs.epa.gov · checked 2026-07-01
  8. FBI CDE/UCR crime statistics cde.ucr.cjis.gov · checked 2026-07-01
  9. FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip) cde.ucr.cjis.gov · checked 2026-09-05
  10. FBI Crime Data Explorer / Uniform Crime Reporting cde.ucr.cjis.gov · checked 2026-08-04
Show 9 more sources
  1. HRSA mental health provider ratio data.hrsa.gov · checked 2026-06-30
  2. NCES CCD public school count nces.ed.gov · checked 2026-06-30
  3. NOAA GHCN-Daily climate normals ncei.noaa.gov · checked 2026-06-30
  4. NOAA National Centers for Environmental Information ncei.noaa.gov · checked 2026-08-03
  5. OurAirports davidmegginson.github.io · checked 2026-08-03
  6. U.S. Census Bureau, Population Estimates Program www2.census.gov · checked 2026-08-03
  7. Census Reporter ACS 2020-2024 5-year, table B20002 (underlying U.S. Census Bureau ACS) api.censusreporter.org · checked 2026-09-11
  8. Census Reporter mirror of ACS 2024 5-year tables api.censusreporter.org · checked 2026-07-26
  9. EPA AQS annual PM2.5 monitor data 2024 aqs.epa.gov · checked 2026-07-26

Spotted a number that looks wrong? Every value here carries its source and date — tell us what you found and we will re-check it against the source.