Quick read
- San Mateo County closed 434 single-family sales in June 2026, up 16% from May, at a median of $2,150,000 and 107% of list price, with supply tightening to just 1.1 months.
- Santa Clara County's SFR median eased to $1,910,000 at 103% of list and 22 days on market. New listings fell 23% month-over-month, so selection is thinning heading into midsummer.
- The fiercest bidding moved down-market: Daly City hit 114% of list, the city of San Mateo averaged 110%, Burlingame homes sold in an average of 8 days, and Sunnyvale ran at 109% of list.
- Trophy-town medians moved on sales mix, not value: Menlo Park printed $3.46M and Palo Alto $3.75M on fewer large closings, while Los Altos rose 4.6% to $4.77M.
- Mortgage rates held near 6.5% all month, with Freddie Mac's weekly survey ranging from 6.47% to 6.52% across the four June readings.
Two Counties, Two Speeds
The June 2026 Silicon Valley housing market split along a line that does not show up in any single headline number. San Mateo County accelerated: 434 single-family homes closed, up 16% from May's 375, while active inventory fell from 513 to 454 and months of supply dropped from 1.4 to 1.1. Santa Clara County held steady on volume, with 821 closings against 823 in May, but its inventory contracted 15% and new listings fell from 1,038 to 799, a 23% decline that signals the usual midsummer listing slowdown arrived early.
Put simply: buyers stayed active through June while sellers started stepping back. That combination, rising or stable sales against falling supply, is what keeps a market tilted toward sellers even when the median price softens. And the medians did soften on paper. Santa Clara County's single-family median came in at $1,910,000, down from $2,050,000 in May, and San Mateo County eased from $2,200,000 to $2,150,000. As we will see below, most of that movement is about which homes sold, not what any given home is worth.
Why Did the Santa Clara County Median Drop to $1.91 Million in June 2026?
The June decline is mostly a composition story: San Jose contributed 422 of the county's 821 single-family sales, its largest share of the mix in months, while several of the priciest towns closed fewer large sales. Homes countywide still sold at 103% of list in an average of 22 days, which are seller's market conditions.
Look at the town-level detail and the picture sharpens. Los Altos ran counter to the county trend entirely, rising 4.6% to a $4,774,000 median with homes selling in 14 days at 106% of list. Saratoga jumped to $4,830,000 on 28 sales. Sunnyvale, the county's perennial relative-value play, posted a $2.8M median at 109% of list with 55 closings in 15 days. None of that is the profile of a county in decline.
The genuine soft spots are specific. Los Gatos averaged 98% of list price on 44 sales with a 43-day average market time, the clearest sign in the June data that aspirational pricing at the high end is being tested and losing. And the condo and townhome tier remains the county's one real buyer opening: 294 condo sales closed at a median of $910,000 and exactly 100% of list, down from 336 sales at $959,000 in May. For buyers who have been priced out of single-family competition, that tier deserves a serious look this summer.
Is San Mateo County Still a Seller's Market This Summer?
Yes, and by the supply math it tightened in June. With 434 sales against 454 active listings, San Mateo County is operating on 1.1 months of inventory, homes are selling at 107% of list price on average, and the average market time is 20 days. That 1.1-month supply figure is the county's tightest reading since at least March, when it stood at 2.0 months.
What changed is where the heat is concentrated. Daly City posted the Peninsula's highest sale-to-list ratio at 114% on 31 closings, and the city of San Mateo ran at 110% with 63 closings in an average of 14 days, its SFR median climbing 9.4% month-over-month to $2.4M. Burlingame homes went pending in an average of 8 days, the fastest market time of any Peninsula city with double-digit sales in June, at 108% of list. Redwood City absorbed 65 sales at 107%. This is the $2M to $3.5M tier, the range where well-qualified tech-income buyers compete hardest, and in June it behaved like the spring 2025 market never ended.
The trophy towns read differently on the surface. Menlo Park's median printed $3,462,500, down from $3,951,500 in May, and Palo Alto came in at $3,750,000 against $4,200,000. Before anyone concludes that West Menlo values fell 12% in thirty days: they did not. In towns that close 30 to 35 sales a month, the median swings on which streets happen to close. A month lighter on Sharon Heights and Old Palo Alto estates and heavier on entry-level product moves the number by hundreds of thousands with no change in what any individual home commands. The demand signals in both towns stayed firm in June: Menlo Park homes sold in 18 days at 104% of list, Palo Alto at 106%. Atherton, always the extreme case of small-sample math, posted a $10.28M median on just 8 closings at 105% of list.
"June was the month the market told us where the real competition lives: not in the estate tier, but in the $2M to $3.5M range where San Mateo, Burlingame, and Sunnyvale buyers are still writing over-ask offers within the first two weeks. Sellers in that band have a genuine window right now."
Mortgage Rates Held Near 6.5% All Month
The 30-year fixed spent June parked where it spent most of the spring. Freddie Mac's weekly Primary Mortgage Market Survey stayed inside a five-basis-point band all month, from 6.47% to 6.52% across the four June readings, a range so narrow it barely registers in payment terms. The rate relief that many buyers penciled into their 2026 plans has simply not arrived.
At Peninsula prices, the math is worth restating. A 20% down payment on a $2 million purchase leaves a $1.6 million loan, and at 6.5% that produces a monthly principal-and-interest payment of approximately $10,100, before property taxes, insurance, and any HOA dues. Buyers waiting for 5.5% before acting are making an implicit bet that prices hold still in the meantime. June's data, with sales volume up and supply down, argues against that bet in the mid tier.
Steady rates cut the other way for supply. Homeowners holding sub-4% pandemic-era mortgages still face a substantial penalty to trade into a 6.5% replacement loan, so the lock-in effect continues to restrain new listings. June's 23% drop in new Santa Clara County listings is partly seasonal, but the lock-in dynamic is why every seasonal dip starts from an already-thin base.
City-by-City Snapshot: June 2026 Peninsula Prices
The snapshot below gives buyers a calibration point and sellers a pricing reality check heading into July. Median market times and sale-to-list ratios tell you more about your negotiating position than the median price does.
| City | SFR Median (June 2026) | Sale-to-List | Key Notes |
|---|---|---|---|
| San Mateo | $2.40M | 110% | Hottest large-volume market; median up 9.4% MoM on 63 sales |
| Burlingame | $3.19M | 108% | Fastest market time in June: 8-day average |
| Sunnyvale | $2.80M | 109% | 55 sales in 15 days; relative value vs. Los Altos and Cupertino |
| Los Altos | $4.77M | 106% | Up 4.6% MoM; strongest luxury-tier performer |
| Palo Alto | $3.75M | 106% | Median down on mix; 35 sales, demand intact |
| Menlo Park | $3.46M | 104% | 18-day market time; median swing reflects composition |
| Los Gatos | $3.09M | 98% | Softest signal in June: 43-day average market time |
| San Jose | $1.67M | 103% | 422 sales; anchors the county median |
| San Mateo Co. (all SFR) | $2,150,000 | 107% | 434 sales, up 16% MoM; 1.1 months of supply |
| Santa Clara Co. (all SFR) | $1,910,000 | 103% | 821 sales; new listings down 23% MoM |
Sources: SAMCAR and SCCAOR June 2026 MLS reports (MLSListings). Single-family residences; city figures rounded. Contact Lisa for neighborhood-level detail and condo or townhome pricing.
One number in that table deserves a second look. Los Gatos at 98% of list is the highest-volume Peninsula city to close below asking in June, joined by Woodside at 96% and Portola Valley at 99%, all luxury-tier markets, and its 43-day average market time is nearly double the county figure. That is not a verdict on Los Gatos values; it is a verdict on Los Gatos list prices. Sellers there have been anchoring to 2025 highs while buyers anchor to 2026 comps, and in a standoff the market time stretches until one side moves. Luxury sellers in every town should read that as the cost of aspirational pricing in this market.
Budgeting a purchase at these prices? Property taxes are the line item buyers most often underestimate: on a $2.15M San Mateo County home they typically add roughly $2,000 a month on top of the mortgage. Our free property tax calculator estimates your annual bill for any Peninsula city, including local parcel taxes and bonds.
What Should Buyers and Sellers Do in July?
For sellers in the $2M to $3.5M band, the June data makes the case plainly: this is your window. Competition among listings is thinner than at any point this year, buyers are paying 107% to 110% of list in the hottest cities, and the traditional late-summer slowdown is four to six weeks out. A home that is prepared, photographed, and priced at or just below the most recent closed comps will meet the deepest buyer pool of the season. Start with a data-grounded number: the free home valuation tool gives you a current estimate before you and I refine it against street-level comps.
For luxury sellers, the two-speed market demands more discipline. Los Altos at 106% and Los Gatos at 98% are forty minutes apart on the same June report. The difference is not desirability; it is pricing posture. Estates that open at a defensible number are still commanding premiums, while listings that test the market are aging on it. If your home has been active more than three weeks without an offer, the market has already given you its answer.
For buyers, June removed one excuse and added one opening. The excuse removed: waiting for rates. At 6.47% to 6.52% all month with no cut on the near horizon, the cost of waiting is now measured in price competition, not financing relief. The opening added: the condo tier and the negotiable luxury tail. Santa Clara County condos at 100% of list mean full-price offers are actually winning, without the escalation clauses the single-family market still requires. And any listing sitting past the 20-day county average, particularly in the softer luxury pockets, is a candidate for a below-ask conversation that would have been unthinkable in 2024.
Whichever side you are on, the mid-market's 16% jump in closed sales is the June statistic to remember. This market is not waiting for autumn.
Frequently Asked Questions
Q: What is the average home price in San Mateo County in June 2026?
A: The San Mateo County single-family median was $2,150,000 in June 2026, with an average sale price of $2,814,692. Homes sold at 107% of list price in an average of 20 days, and the county closed 434 single-family sales, up 16% from May, on just 1.1 months of supply.
Q: Why did the Santa Clara County median fall to $1.91 million in June 2026?
A: The drop from $2,050,000 in May to $1,910,000 in June is mostly a mix story: fewer very large sales closed in the county's priciest towns while San Jose contributed 422 of the county's 821 single-family sales. Homes still sold at 103% of list price in an average of 22 days, which are seller's market conditions, and new listings fell 23% month-over-month.
Q: Which Peninsula cities were the most competitive in June 2026?
A: Daly City led the Peninsula at 114% of list price on 31 sales, with the city of San Mateo at 110% on 63 sales. Burlingame homes sold in an average of 8 days at 108% of list, Sunnyvale averaged 109% of list on 55 sales, and Redwood City closed 65 sales at 107%. The strongest competition in June was concentrated in the $2M to $3.5M range.
Q: Is July 2026 a good time to sell a home on the Peninsula?
A: Yes, particularly in the entry and mid tiers. San Mateo County is down to 1.1 months of supply and new listings fell in both counties in June, so a well-prepared home faces less competition than it did in spring. Luxury sellers should price tightly to closed comps: Los Gatos homes averaged 98% of list in June, a reminder that aspirational pricing is being tested at the high end.
Stay informed: Get monthly market updates delivered to your inbox, including city-by-city price data, inventory trends, and Lisa's read on where the Peninsula market is heading. Subscribe to Lisa's Market Minute.
The bottom line
June 2026 was the month Silicon Valley's housing heat moved down-market. San Mateo County sales jumped 16% on shrinking supply, the $2M to $3.5M tier ran at 107% to 110% of list, and the trophy-town median dips were composition, not correction. With rates steady near 6.5% and new listings falling in both counties, mid-tier sellers have their best window of the year and buyers face a market that is not softening where they need it to. If a summer move is on your mind, reach out to Lisa for a current analysis specific to your neighborhood and price range.