Zillow data for 50 large U.S. metropolitan areas indicate that, in parts of California, the monthly cost of owning a home far exceeds current rents — and that it would take many years of rent growth for tenants to reach parity with buyers’ monthly payments.
How the gap was measured
The analysis compared Zillow’s median rents in September 2026 across six California metros with an estimated monthly house payment for a purchase at Zillow’s median house value in the same month. The mortgage-payment estimate used a 30-year fixed mortgage rate of 6.9% — the Freddie Mac figure for September 2026 — and added 2.2 percentage points to reflect commonly overlooked costs such as property taxes and insurance plus a rate premium tied to a 10% down payment.
The scale of the difference
For the six California metros combined, Zillow put median rent at $2,929 per month in September 2026. The parallel estimated monthly payment for buyers was $6,770, leaving renters with an immediate monthly advantage of $3,839.
- Median rent (six California metros, Sept. 2026): $2,929
- Estimated monthly house payment (same markets): $6,770
- Down payment assumed: $93,000 (10% of a $930,000 purchase)
Using an assumed rent growth rate of 5.1% annually — the average pace in those metros over the previous 11 years — the calculation shows it would take roughly 17 years for median rents to reach the September 2026 buyer payment level. In other words, renters in those California markets would not lose the monthly-cost advantage until about 2043 under that growth assumption.
Which California metros would wait longest
Among the six California metros examined, the time for rents to equal purchasing costs varies substantially:
| Metro | Years until rent equals estimated purchase payment |
|---|---|
| San Jose | 36 years |
| San Francisco | 27 years |
| Los Angeles–Orange County | 20 years |
| San Diego | 16 years |
| Sacramento | 12 years |
| Inland Empire | 9 years |
By contrast, a market such as Pittsburgh was estimated to reach parity in about three years.
The analysis notes caveats that affect the comparison. Homeowners may lower borrowing costs over time through refinancing. Owners also face additional recurring expenses — homeowner association fees, maintenance and repairs — and must supply a down payment. Conversely, buyers may benefit from mortgage-interest tax deductions or future home-price appreciation. The example in September used a $930,000 purchase price and a $93,000 down payment.
The data underline a core affordability challenge in high-cost California markets: even with persistent rent inflation, the monthly financial burden of homeownership remains substantially higher than renting for the foreseeable future under typical historical growth assumptions.
