How long do homes take to sell in ZIP 91789?

Median days on market: 74.5 days.

What is the natural-hazard risk in ZIP 91789?

Overall risk: Very High (FEMA NRI, county-level). Top hazards: earthquake, inlandFlooding, lightning, wildfire, avalanche.

What is the wildfire risk in ZIP 91789?

Risk to homes is higher than 99% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).

What is the radon potential in ZIP 91789?

Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.

Are there Superfund sites near ZIP 91789?

No current or proposed National Priorities List sites within 5 miles (EPA).

How many schools serve ZIP 91789?

11 schools (7 elementary, 2 middle, 2 high) (NCES, 2022-23).

Is ZIP 91789 walkable?

Walkability index: 12.8/20 (EPA Smart Location Database).

What is the air quality in ZIP 91789?

Moderate. Median AQI: 67. (EPA AQI).

What is the cost of living in ZIP 91789?

Regional Price Parity: 113.3 (100 = US average) (High) (BEA RPP, metro/state-level).

REAIGENT7 is a listing platform for real estate agents — where every page answers buyer questions with 25+ public government, academic, and industry research datasets (FEMA, NOAA, Census, NCES, and more). AI handles the questions; the agent owns the relationship. Direct buyer contact forms, marketing tools, and lead management built in. No competing agents on your listing, no per-ZIP fees, no referral fees on close.

How does REAIGENT7 work for real estate agents?

Agents upload a property document — MLS sheet, flyer, appraisal, or any PDF — or enter listing details manually. REAIGENT7 creates a professional listing page they control in minutes. Every page includes AI chat that answers buyer questions 24/7, direct buyer contact forms, a photo gallery, and area insights. Works for MLS listings, pocket listings, and off-market properties. Agents share their link on social media, yard signs, email, and open-house flyers — and every buyer lands on their page.

How much does REAIGENT7 cost?

REAIGENT7 offers a 14-day free trial with no credit card required. The Standard plan is $79/month (or $790/year — 2 months free) for up to 5 active listings. The Pro plan is $129/month (or $1,290/year — 2 months free) for up to 15 active listings. All features are included on every plan.

Do I need a credit card to start?

No. The 14-day free trial requires no credit card. You can build listing pages, invite buyers, and collect leads without adding a payment method. You only add billing if you decide to keep your account after the trial.

Can buyers ask questions about a property on REAIGENT7?

Yes. Every REAIGENT7 listing page has an AI chat assistant grounded in the real property data the listing agent provides. Buyers can ask about pricing, square footage, HOA fees, neighborhood information, disclosure history, schools, and more. For binding decisions like offers, pricing negotiations, and legal matters, the AI defers to the licensed agent.

How does the AI know about my listing?

When you upload an MLS sheet, flyer, or property document, REAIGENT7 extracts the facts — price, beds, baths, square footage, features, HOA, condition — and uses them to ground a per-listing AI assistant. You can edit any extracted field before publishing. The AI only answers based on what you’ve provided; it never makes up information.

Does REAIGENT7 share my leads with other agents?

Never. Every lead — whether from the AI chat, a contact form, a showing request, or an open-house sign-in — goes directly to you. REAIGENT7 does not sell buyer information, does not route buyers to competing agents, and does not charge referral fees on leads.

Does REAIGENT7 replace me as the agent?

No. The AI answers buyer questions about the property and area — schools, flood risk, climate, commute, HOA — and captures qualification info (budget, timeline, financing) during natural conversation. It doesn’t run multi-month nurture campaigns or pretend to be the agent. When a buyer wants to engage with a real person, that’s you — with the AI’s conversation context already in your dashboard so you start a real conversation, not from scratch.

Can I use REAIGENT7 for pocket listings or off-market properties?

Yes. REAIGENT7 works for MLS listings, pocket listings, pre-MLS properties, and off-market sales. You control privacy settings per listing — you can hide a listing from the public browse page while keeping a direct share link or embed for targeted outreach.

What happens to my listings if I downgrade or cancel?

If you downgrade, your listings above the new plan’s limit are automatically unpublished (not deleted) on the day the downgrade takes effect — you can republish them if you upgrade again. If you cancel, your listings are unpublished and your data is retained so you can reactivate anytime. You can also delete your account entirely from Settings, which removes all data permanently.

How does lead pre-qualification actually work?

When a buyer chats with the AI, it naturally weaves in a few qualification questions based on context — budget range, timeline, financing type (cash, conventional, FHA, VA), and pre-approval status. The AI only asks about financial readiness and timeline; it never asks about family size, children, marital status, or any protected class. Qualified leads are flagged in your dashboard so you can prioritize serious buyers over casual browsers.

How fast can I set up a listing?

Go live in under five minutes. Upload an MLS sheet, flyer, or appraisal and the AI extracts the address, price, beds, baths, square footage, HOA, and school district automatically. You review the extracted facts, add photos, and publish. Manual entry also works if you prefer.

Can I send open house reports to sellers?

Yes. After every open house, you can send the seller a professional report with sign-in counts, top buyer questions, AI-identified gaps in the listing, and engagement insights — no buyer PII included. It’s a strong tool for listing presentations: show prospective sellers the real-time insights they’ll get on their own property.

How do I get my listing page in front of buyers?

Every listing comes with a QR code, direct share links, and embed codes for your website or blog. The Share hub also includes social caption and email drafts you can customize. Print the QR code on yard signs, flyers, and open-house handouts so buyers can scan and chat with the AI instantly.

Area data

Diamond bar, CA — ZIP 91789

Population: 40,298 (Census ACS)

The median home value in ZIP 91789 (Diamond bar, CA) is $1.15M — up 0.9% over the past year. Homes sell for a median $543,000 after a median 74.5 days on market. Typical rent runs $3,550/month. 11 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Very High, with earthquake, inlandflooding, lightning the top-rated hazards. Cost of living is 13.3% above the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$1.15M

Median home value

+0.9%

1-year change

74.5

Median days on market

Very High

Hazard risk (county)

Home values & appreciation

Median home value: $1.15M
1-year appreciation: +0.9%
3-year appreciation: +12.8%
5-year appreciation: +28.8%
10-year appreciation: +60.5%
All-time peak (2025-01): $1.16M
House Price Index (state): 417.4 (-0.8% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price: $543,000
Median list price: $1.21M
Median price per sqft: $595
1-year sale-price change: -27.6%
Median days on market: 74.5 days
Homes sold (recent period): 2
For-sale inventory: 104
Sale-to-list ratio: 96.8%
Active listings: 9
1-year forecast: +0.3%
Days to pending: 48 days
New listings (monthly): 34

Source: recent area sales and market data (ZIP-level)

Rents

Typical rent: $3,550/mo
1-year rent change: +4.1%
Studio fair-market rent: $2,780/mo
1BR fair-market rent: $3,110/mo
2BR fair-market rent: $3,880/mo
3BR fair-market rent: $4,920/mo
4BR fair-market rent: $5,480/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (High): 113.3 (100 = US avg)
Electricity rate (state-level): 32.5¢/kWh
Natural gas rate (state-level): $22.00/MCF
30-year mortgage rate (national): 6.66%
15-year mortgage rate (national): 6.00%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Schools

Total schools: 11
Elementary schools: 7
Middle schools: 2
High schools: 2
School districts serving the area: Rowland Unified, Walnut Valley Unified
Schools include: Ybarra Academy for the Arts and Technology, Stanley G. Oswalt Academy, Collegewood Elementary, Cyrus J. Morris Elementary, Ron Hockwalt Academies (Continuation)

Source: NCES school directory, 2022-23 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county): Very High
Top hazards (county): earthquake, inlandFlooding, lightning, wildfire, avalanche
Notable hazard ratings (county): avalanche: Relatively High · coastalFlooding: Relatively High · drought: Relatively Low · earthquake: Very High · hail: Relatively Moderate · heatWave: Relatively High
Wildfire risk to homes (county): Higher than 99% of US counties
Buildings in wildfire direct-exposure zone: 5.0%
Radon potential (county): Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi: None
Nearest Superfund site: San Gabriel Valley (Area 4) (5.9 mi)

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature: 67.0°F
Average high: 78.0°F
Average low: 56.0°F
Annual precipitation: 9.8 in
USDA plant hardiness zone: 10a (extreme annual low 30 to 35°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating: Moderate
Median AQI (annual): 67
Days with Good air quality: 41
Days with Moderate air quality: 237
Days with Unhealthy air quality: 32
Highest AQI recorded (year): 210

Source: EPA air quality data (nearest monitoring station, annual)

Walkability & transit

Walkability index: 12.8 / 20
Transit service frequency: 707
Jobs reachable by car (30 min): 224,388
Jobs reachable by transit (45 min): 213,260

Source: EPA Smart Location Database (metropolitan block groups)

Amenities

National parks within ~60 mi: 2
Nearest national park: Juan Bautista de Anza National Historic Trail (38 mi)
National parks include: Juan Bautista de Anza National Historic Trail, Santa Monica Mountains National Recreation Area
Airports within 30 mi: 14
Nearest airport: Brackett Field (POC) (7 mi)
Nearest major airport: Ontario International Airport (ONT) (15 mi)
Hospitals nearby (~15 mi): 55
Hospitals include: PROVIDENCE ST. JOSEPH HOSPITAL, UCI HEALTH-ORANGE, CHILDREN'S HOSPITAL OF ORANGE COUNTY
Avg hospital rating (CMS): 2.6 / 5
Best hospital rating nearby (CMS): 4.0 / 5
EV charging stations (within 10 mi): 630
Solar radiation rating: Good (5.3 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Migration

Net migration (county): -52,940 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built: 1,982
Housing built before 1970: 17.4%
Housing built 2000 or later: 7.1%
Median annual property tax: $7,343
Mean commute to work: 27 min
Households with broadband internet: 79.4%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment: 3,896,707
Average weekly wage: $1,512
Top industries (by employment): Health Care, Accommodation & Food, Professional Services
Annual residential building permits (county): 8,325

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

	ZIP 91789	State median	US median
Median home value	$1.15M	$702,573	$289,727
Median sale price	$543,000	$696,000	$325,000
Median days on market	75 days	39 days	51 days
Typical rent	$3,550/mo	$2,767/mo	$1,808/mo
Median annual property tax	$7,343	$4,533	$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in ZIP 91789?: $1.15M.
What is the median sale price in ZIP 91789?: $543,000.
How long do homes take to sell in ZIP 91789?: Median days on market: 74.5 days.
What is typical rent in ZIP 91789?: Typical rent: $3,550/month.
What is the natural-hazard risk in ZIP 91789?: Overall risk: Very High (FEMA NRI, county-level). Top hazards: earthquake, inlandFlooding, lightning, wildfire, avalanche.
What is the wildfire risk in ZIP 91789?: Risk to homes is higher than 99% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 91789?: Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 91789?: No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve ZIP 91789?: 11 schools (7 elementary, 2 middle, 2 high) (NCES, 2022-23).
Is ZIP 91789 walkable?: Walkability index: 12.8/20 (EPA Smart Location Database).
What is the air quality in ZIP 91789?: Moderate. Median AQI: 67. (EPA AQI).
What is the cost of living in ZIP 91789?: Regional Price Parity: 113.3 (100 = US average) (High) (BEA RPP, metro/state-level).

Nearby ZIP codes

Selling a home in Diamond bar, CA?

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Data last updated

Most recent source refresh: Sep 2026. See all data sources →