Diamond Bar Housing Market Report – May 2026
Here's a look at how the Diamond Bar, CA real estate market performed in May 2026, based on actual sold data from the MLS.
Market Snapshot
- Homes Sold: 34
- Median Sale Price: $1,145,250
- Average Sale Price: $1,230,041
- Average Price Per Sq Ft: $552
- Average Days on Market: 59
- Sale-to-List Price Ratio: 100.4%
Month-Over-Month Trends
Compared to April, the median sale price in Diamond Bar moved 6.0% up (from $1,080,000 to $1,145,250). The number of homes sold was 17.2% up compared to the prior month (29 vs. 34). Average days on market shifted 9.2% down (65 days to 59 days).
Year-Over-Year Comparison
Compared to May 2025, the median sale price is 16.9% up (from $980,000 to $1,145,250). Sales volume is 0.0% down year-over-year.
What This Means
Diamond Bar's housing market is showing genuine momentum heading into summer, though with some important caveats. The median price climbed 6% month-over-month to $1,145,250, continuing a solid year-over-year trend of 16.9% appreciation since May 2025. More tellingly, homes are moving faster—average days on market dropped to 59 from 65—and sellers are capturing 100.4% of asking price, a sign of healthy buyer demand. The uptick in sales volume is likely reflecting improved data collection rather than a true surge, so don't read too much into that metric.
What's happening here is fairly typical for late spring in the San Gabriel Valley. Seasonal demand is kicking in as families prepare for summer moves, and the faster absorption rate suggests genuine interest. However, the gap between median and average prices ($1,230,041 versus $1,145,250) hints that a few higher-end sales are skewing the data, with single-family homes dominating the mix at 27 of 34 sales. The substantial pipeline of 189 active listings—many sitting longer on the market—suggests the market isn't overheated. Buyers have options, and inventory remains balanced, which should keep price appreciation measured going forward.
Diamond Bar Sales by Zip Code
| Zip Code | Homes Sold | Median Price | Avg $/SqFt | Avg DOM |
|---|---|---|---|---|
| 91765 | 33 | $1,170,500 | $550 | 59 |
| 91789 | 1 | $1,120,000 | $611 | 40 |
Sales by Property Type
| Property Type | Homes Sold | Median Price | Avg $/SqFt |
|---|---|---|---|
| SINGLE_FAMILY | 27 | $1,240,000 | $565 |
| CONDOS | 5 | $520,000 | $506 |
| TOWNHOMES | 2 | $575,000 | $488 |
Sales by Price Range
| Price Range | Homes Sold |
|---|---|
| $400K - $499K | 1 |
| $500K - $749K | 6 |
| $750K+ | 27 |
Current Active Listings
As of this report, there are 189 active listings in Diamond Bar with a median asking price of $1,120,000 and an average of 93 days on market.
Thinking About Selling Your Diamond Bar Home?
If you're a homeowner in Diamond Bar considering selling, you have options. While the traditional market is one route, selling directly for cash can save you time, commissions, and the hassle of repairs and showings. We buy houses in Diamond Bar and throughout Los Angeles County — get a no-obligation cash offer today.