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Featured local agent — Onyx, CA
Sarah Mitchell
Compass Real Estate · Onyx, CA
“Your trusted relocation specialist since 2009. 350+ homes sold. Zero-pressure, data-first approach.”
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Onyx, CA Housing Market
The typical home in Onyx, CA is worth $242,343, rose 2.5% over the past year (Zillow Home Value Index, July 2026). The last median sale price Redfin published was $80,000 (through May 2026). With 5.0 months of supply and homes going under contract in about 424 days, Onyx is a leaning buyer's. At today's 6.66% 30-year fixed rate, 20% down on a $242,343 home is about $1,246/mo in principal and interest.
Key numbers for Onyx, CA
Typical home value
$242,343
+2.5% in 12 months
Zillow, July 2026
Median sale price
$80,000
Last published period
Redfin, through October 2025
Days on market
424
Slow-moving
Redfin, through October 2025
Active listings
5
5.0 months of supply
Redfin, through October 2025
30-yr fixed rate
6.66%
Freddie Mac weekly average
Freddie Mac via FRED, August 2026
Median household income
$27,462
Home costs 8.8x income
U.S. Census ACS, 2023
Sale-to-list ratio
100.0%
Selling above asking
Redfin, through October 2025
Zillow figures are as of July 2026 and refresh monthly. Redfin figures are through May 2026 — Redfin stopped publishing its public market trackers in June 2026, so those numbers are final, not current. Mortgage rates come from Freddie Mac via FRED and update weekly.
Is Onyx a buyer's or seller's market?
Onyx, CA is a leaning buyer's, based on 5.0 months of supply and homes selling in about 424 days. 4 to 5 months of supply is the neutral band: neither side holds a structural advantage, and outcomes turn on the individual property.
Inputs are Redfin's final published period (May 2026). How we classify markets · Where the data comes from
What does the Onyx housing market data show?
Every row below is Redfin's final published month for Onyx, CA. Redfin, through October 2025
| Metric | Value |
|---|---|
| Median sale price | $80,000 |
| Median price per sq ft | $128/sq ft |
| Median days on market | 424 days |
| Active inventory | 5 listings |
| Months of supply | 5.0 months |
| Sale-to-list price ratio | 100.0% |
| Homes sold (that month) | 1 |
| Listings with a price cut | 20.0% |
| Market condition | Leaning buyer's |
How to read these numbers
- Median sale price
- Half the homes that closed sold for more than this, half for less. It moves with what kind of home sold that month, so a quiet month with two big sales can swing it. Redfin's figure for Onyx is frozen at May 2026.
- Typical home value (ZHVI)
- Zillow's estimate of what a mid-market home in Onyx is worth right now, whether or not it sold. It is smoother than the median sale price and it still refreshes monthly, which is why this page leads with it.
- Months of supply
- How long it would take to sell every active listing at the current pace. Under 3 favors sellers, over 6 favors buyers, and 3 to 6 is the balanced band.
- Days on market
- Median time from listing to accepted offer. Short means you should have financing ready before you tour; long means there is room to negotiate on price and repairs.
- Sale-to-list ratio
- Sale price divided by the last asking price. Above 100% means bidding above asking is normal here; below 100% means the typical buyer got a discount.
- Price per square foot
- The size-adjusted price. Use it to compare a 1,400 sq ft house to a 2,600 sq ft house, not to value your own home — lot, condition and age move it a lot.
- Listings with a price cut
- Share of active listings that dropped their asking price in the month. A high share is the earliest visible sign that sellers are ahead of what buyers will pay.
- Typical asking rent (ZORI)
- Zillow's repeat-rent index for asking rents on new leases. Paired with the home value it gives the price-to-rent ratio in the rent-vs-buy section below.
How have Onyx home prices moved?
Across the 15 months we hold for Onyx, CA, the median sale price fell 42.9%, from $140,000 in July 2021 to $80,000. The live Zillow value series has rose 2.5% in the last 12 months, which is the more current read now that Redfin's series has stopped. 20.0% of Onyx listings cut their asking price in the final Redfin month — a modest share, which is what a market looks like when sellers are pricing close to where homes actually clear. For prices to fall meaningfully from here, supply would have to keep building past 5.0 months while the sale-to-list ratio slips below its current 100.0%. Watch those two together — they move before the median does.
Redfin, through October 2025 — the chart ends at Redfin's final published month.
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What does it cost to buy a home in Onyx?
Priced off the typical home value of $242,343 at the current 6.66% 30-year fixed rate. These are principal and interest only — property taxes, homeowner's insurance, HOA dues and mortgage insurance are on top, and they vary enough by property that we will not guess them for you.
| Down payment | Cash at close | Loan amount | Monthly P&I |
|---|---|---|---|
| 20% | $48,469 | $193,875 | $1,246/mo |
| 5% | $12,117 | $230,226 | $1,479/mo |
Zillow, July 2026 for the price · Freddie Mac via FRED, August 2026 for the rate
What income do you need?
Lenders generally want housing costs under 28% of gross income. On the 20%-down payment of $1,246, that implies roughly $53,395 a year before you add taxes and insurance. The median household in Onyx earns $27,462, about $25,933 short of that threshold — the typical local household needs a larger down payment, a co-borrower, or a home below the typical home value to fit the 28% rule. That puts the price-to-income ratio at 8.8x — well above the 3x that was historically considered affordable, which is why down payment size drives who can buy here.
Run it with your own numbers: affordability calculator · mortgage calculator
Buying in Onyx in the next 12 months?
Tell us your timeline. We send the Onyx market brief: the price ranges that actually clear, how long homes sit, and what to fix on your credit before you apply.
Is it cheaper to rent or buy in Onyx?
Zillow does not publish a rent index (ZORI) for Onyx, CA, so we cannot compute a price-to-rent ratio here without borrowing a nearby market's rents and calling them local — which we will not do. The rent vs. buy calculator works with a rent figure you supply.
Is inventory rising or falling in Onyx?
Active listings in Onyx, CA went from 3 in August 2021 to 5 in October 2025, a +66.7% change. Rising inventory is the single most useful leading indicator for buyers: more choice, longer marketing times, and more sellers willing to negotiate before price cuts show up in the median.
| Month | Active listings | New listings |
|---|---|---|
| September 2021 | 4 | 2 |
| October 2021 | 2 | not published |
| January 2022 | 1 | not published |
| May 2022 | 1 | 1 |
| October 2022 | 3 | not published |
| January 2023 | 3 | 2 |
| May 2023 | 4 | 1 |
| June 2023 | 2 | not published |
| July 2023 | 2 | not published |
| September 2023 | 2 | not published |
| May 2025 | 2 | 1 |
| October 2025 | 5 | not published |
Redfin, through October 2025
How does Onyx compare to California and the U.S.?
Onyx homes sell for $80,000 — 91% below the California median of $887,400. Against the national median of $410,700, Onyx runs 81% lower.
| Market | Median sale price | YoY | Days on market |
|---|---|---|---|
| Onyx, CA | $80,000 | not published | 424 days |
| California statewide | $887,400 | +3.4% | 33 days |
| United States | $410,700 | not published | not published |
City and state rows: Redfin, through October 2025 · U.S. row: Freddie Mac via FRED, April 2026 (MSPUS, quarterly)
What to do next in Onyx
What buyers should watch
- Months of supply, currently 5.0. It turns before price does — when it climbs past 6, sellers start taking offers they would have rejected a quarter earlier.
- The share of listings cutting price, currently 20.0%. A listing that has already cut once is the one most likely to accept below asking.
- The gap between 5% and 20% down here is $234 a month in principal and interest alone, before mortgage insurance. That gap, not the price, is usually what decides your timeline.
- Rate moves. At 6.66%, every full point of rate change moves the payment on a $242,343 home more than a 5% price change does.
- Your credit tier before you shop, not after — it sets the rate you are quoted. Run your numbers first.
What sellers should know
- The median Onyx listing goes under contract in 424 days. If yours passes that mark, the market is telling you the price is wrong — not that you need more showings.
- Homes here close at 100.0% of asking. Price at the number you want and let competition do the rest.
- Your equity moved +2.5% in the last 12 months on the Zillow value series. That, not the price you paid, is what sets your net proceeds.
- Comparable ZIP-level pricing inside Onyx varies more than the citywide median suggests — check the ZIP pages below before you set a number.
Homes for sale in Onyx
There are currently 5 homes listed for sale in Onyx, California.
Active listings
5
Homes on market
Avg. days on market
424
Days until sale
How much do homes cost in Onyx by property type?
How the Onyx, CA market breaks down across single-family homes, condos and townhouses. Redfin, through October 2025
| Property type | Median price | Price / sq ft | Homes sold | Days on market |
|---|---|---|---|---|
| Single-family | $80,000 | $128/sq ft | 1 | 424 days |
Who lives in Onyx?
American Community Survey estimates for Onyx. U.S. Census ACS, 2023
Population
574
Households
302
Median income
$27,462/yr
Median age
56.1 years
Owner-occupied
81.1%
Median home value
$174,300
81.1% of occupied homes in Onyx are owner-occupied, and the rest are rented — which is the share that decides how much of the local housing stock ever reaches the for-sale market. The Census self-reported median home value is $174,300 against Zillow's $242,343 typical value; the gap is normal — ACS asks owners what they think their home is worth, Zillow models transactions.
Which cities are near Onyx, CA?
Ordered by distance from Onyx, not by size. Compare Onyx side by side with any of them.
Onyx housing market FAQ
Is Onyx a buyer's or seller's market?
Onyx, CA is currently a leaning buyer's. That read comes from 5.0 months of supply, homes going under contract in about 424 days, and sellers getting 100.0% of their asking price in the last month Redfin published (May 2026).
How much do homes cost in Onyx?
The typical home in Onyx, CA is worth $242,343 (Zillow Home Value Index, July 2026). The median sale price in the last month Redfin published was $80,000, about $128 per square foot.
Is Onyx cheaper than the rest of California?
Onyx's median sale price of $80,000 is 91% lower than the California statewide median of $887,400, and 81% below the U.S. median of $410,700. Both figures are for the same period.
How long do homes take to sell in Onyx?
Homes in Onyx, CA spent a median of 424 days on market before going under contract, versus 33 days statewide. Over two months means buyers have time to inspect, compare and negotiate. (Redfin, through May 2026.)
What income do you need to buy a home in Onyx?
At the current 30-year fixed rate of 6.66%, 20% down on a $242,343 home is about $1,246 a month in principal and interest. Lenders typically want that under 28% of gross income, which works out to roughly $53,395 a year before taxes, insurance, HOA dues or mortgage insurance. The local median household income is $27,462.
Are home prices rising in Onyx?
The typical home value in Onyx, CA rose 2.5% over the last 12 months, from $236,457 to $242,343 (Zillow, July 2026). This is the live series — it refreshes monthly.
What are the cheapest ZIP codes in Onyx?
Onyx ZIP-level sale prices are not all published for the same period, so ranking them would compare different months. The ZIP pages listed on this page show what we hold for each one individually.
Is now a good time to buy in Onyx?
That depends on your timeline, not on a headline. What the data says today: Onyx, CA is a leaning buyer's with 5.0 months of supply, the 30-year fixed rate is 6.66%. Properties Incorporated publishes the data; it does not give financial advice.
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