Diamond Bar, CA — Momentum Score, Home Values & Best-For

All states·California·Diamond Bar

Los Angeles County · Los Angeles-Long Beach-Anaheim · population 52,292

Shrinking
Diamond Bar, CA
Image: Wikipedia · Diamond Bar, California
OverviewCost of livingMoving guide
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60
Stable
Momentum score · 0–100

Where Diamond Bar stands

At or near all-time high. population shrinking 1.3% per year.

Median home $1,031,856
1-year +0.6%
5-yr CAGR +5.8%
vs 5-yr peak -0.6%
Population -1.3%/yr

Home value trajectory · last 10 years

Zillow ZHVI · monthly
peak 2025-01$1032k$553k$728k$904k$1079k201620182020202220242026

Lifestyle scores

🚶
Walkability
52/100
Somewhat walkable
Estimated from population density. Higher = denser, more amenities within walking distance.
🚉
Public transit
22/100
Transit limited
Curated list of major US transit systems + population-based estimate. Higher = real subway/rail/bus options.
💻
Remote work fit
46/100
Marginal for remote
Composite of city size, housing cost, state tax structure, and region's remote-work track record.

Scores are heuristic estimates from population density, state, and known transit/walkable cities. Not based on a paid Walk Score / Transit Score API — see methodology for the formula.

Rent trajectory · last 5 years

Zillow ZORI · monthly
$3,294/mo$2,280$2,886$3,492202220242026

Home value vs rent · indexed to 100

Both rebased at first month of ZORI data (~2015)
Home valueRent133136100120140202220242026

Rent vs buy

Price-to-rent ratio: 26.1
Rent

At a 26.1 price-to-rent ratio, renting beats buying in Diamond Bar for most shorter holds. The premium you pay to own would take many years of rent savings to recoup, and that's before maintenance, taxes, and opportunity cost on the down payment.

How the momentum score breaks down

methodology →
Home YoY
53 · w22%
Home 5-yr CAGR
69 · w22%
Distance from peak
87 · w18%
Population growth
26 · w16%
Rent YoY
57 · w12%
Home 10-yr CAGR
63 · w10%
Long thesis

Diamond Bar has held up across the cycle: home values at $1,031,856 with +5.8% 5-year CAGR. The bull case is structural — population, location, employer base — and holds even if next year's print is soft.

Short thesis

Diamond Bar's population is shrinking 1.3% per year. Housing demand has to come from somewhere — if people are leaving, the buyer pool is shrinking faster than the inventory. That eventually shows up in price.

About Diamond Bar

Diamond Bar is a city in Los Angeles County, California, with an estimated population of 52,292. It anchors the Los Angeles-Long Beach-Anaheim metro area. The population has contracted 1.3% per year on average since 2020. The median home value in Diamond Bar is $1,031,856 as of 2026-04, up 0.6% over the last 12 months. Over the last five years, home values have averaged +5.8% annual growth, with prices at or near the 5-year peak. Rents in Diamond Bar average $3,294 per month, roughly flat year-over-year (+1.8%). The composite momentum score is 60 of 100 (Stable). Conditions are neither hot nor cold, so the local fit matters more than market timing.

▲ Bull case

●Healthy 5-year run: +5.8% annualized over 5 years, outpacing US inflation.
●Held the highs: currently -0.6% from the 5-year peak — this market refused to give back gains.

▼ Bear case

●Net out-migration: population shrinking 1.3% per year — services, schools, and tax base will follow.
●Expensive AND not growing: median home $1,031,856 with only +0.6% YoY. You’re paying premium pricing for a flat trend.

About Diamond Bar (Wikipedia)

Diamond Bar is a city in the San Gabriel Valley of eastern Los Angeles County, California, United States. The 2020 census listed a population of 55,072. It is one of a few cities in California with a majority Asian population. It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederic E. Lewis (1884–1963). The city features a public Los Angeles County golf course.

Source: Wikipedia · this summary is contributed and licensed under CC-BY-SA.

City facts

MayorSteve TyeCite web
Area14.88 sq mi
Elevation696 ft
Density3703.56/sq mi
Named forDiamond Bar Ranch

Extracted from the Wikipedia infobox. Values may be slightly out of date relative to the latest sources.

Playbook

Buyer

Lifestyle fit matters more than market timing in a Stable market. Take your time on the home and neighborhood; the macro trend isn't urgent. Negotiate normally.

Seller

Price competitively from day one or risk a 60+ day listing. Staging, photography, and presentation matter more in Stable markets than in Hot ones.

Investor

Stable cap rates, no big appreciation story to lean on. Underwrite this as a pure cash-flow play — the math has to work on rent alone.

Local safety & alerts

No active National Weather Service alerts for Los Angeles County right now.

NWS active alerts (CA)California Emergency ManagementHow to prepare (NWS)

Public-safety links are official .gov sources, not curated by us. Los Angeles County routes NWS alerts; check the state EM portal for non-weather emergencies.

Cities like Diamond Bar

Walnut, CA59 · StableSan Dimas, CA58 · StableLa Habra, CA62 · RisingAzusa, CA63 · Rising

Run the numbers for Diamond Bar

ToolCan I afford Diamond Bar?Income → city shortlistToolROI on a Diamond Bar rentalCap rate, cash-on-cash, DSCRToolCompare Diamond Bar to anywhereSide-by-side up to 3 citiesToolDiamond Bar cost-of-livingEquivalent income elsewhere

Sources: Zillow ZHVI (home values), Zillow ZORI (rents), US Census ACS + place population. Updated when source agencies publish revisions.

Climate & natural-disaster risk

Winter (Jan)
60° / 41°
avg high / low
Summer (Jul)
82° / 60°
avg high / low
Sunny days/yr
258
~71% of year
Annual precip
22″ rain
8″ snow
Disaster risk (1=very low, 5=very high)
Hurricane
Very low
Tornado
Very low
Wildfire
Very high
Earthquake
Very high
Flood
Moderate

State-level averages from NOAA Climate Normals (1991-2020) and FEMA National Risk Index. City-level conditions can vary significantly within a state.

Local sports teams

Major professional teams the Los Angeles-Long Beach-Anaheim area cheers for. Detailed stats, schedules, and player pages on intherafters.com.

Current weather

Loading current conditions…

7-day forecast on weather.gov →

Find rentals & listings

Open current Diamond Bar listings on the major real-estate sites.

Links open the live search on the destination site — results are always current.

Local news & community

Updated 2026-05-21 from Google News + Reddit RSS. Headlines link to original sources.

Local economy & environment

Humidity
65%
Moderate climate
Median household income
$91,500
California state median
Top industries (state-level)
TechEntertainmentAgriculture

Humidity is annual average relative humidity (NOAA). Income is Census ACS 5-year estimate. Industries are largest employment sectors statewide (BLS); the local mix in a given city may vary.

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