Mortgage Refinance Rates in San Mateo County, California (2026)
For San Mateo County homeowners, the refinance question in 2026 is simple: on a $1,020,000 balance, a move from 7.50% down to 6.25% frees up roughly $852 every month — and equity near San Mateo County opens cash-out room too.
How much you could save near San Mateo County
The payment comparison below uses a typical $1,020,000 San Mateo County balance at example rates:
| Payment | Per Month |
|---|---|
| Today (~7.50%) | $7,132 |
| Refinanced (~6.25%) | $6,280 |
| What you would save | $852 |
These are example figures for San Mateo County; a lender will price your exact rate from your file. Get alerts when rates drop.
Savings by balance in San Mateo County
The larger your balance, the more a rate drop returns — three San Mateo County examples:
| Balance | Now (~7.50%) | Refi (~6.25%) | Monthly Saved |
|---|---|---|---|
| $714,000 | $4,992 | $4,396 | $596 |
| $1,020,000 | $7,132 | $6,280 | $852 |
| $1,377,000 | $9,628 | $8,478 | $1,150 |
San Mateo County refinance payments at today's rates
Payments on a $1,020,000 loan near San Mateo County at several rates — a small rate move is real money:
| Rate | 30-yr P&I | 15-yr P&I |
|---|---|---|
| 5.50% | $5,791 | $8,334 |
| 5.75% | $5,952 | $8,470 |
| 6.00% | $6,115 | $8,607 |
| 6.25% | $6,280 | $8,746 |
| 6.50% | $6,447 | $8,885 |
| 6.75% | $6,616 | $9,026 |
| 7.00% | $6,786 | $9,168 |
A 15-year refinance of $1,020,000 near San Mateo County runs about $8,746/month versus $6,280 on a 30-year — a higher payment near San Mateo County but far less total interest over the life of the San Mateo County loan.
Tapping San Mateo County equity
Sitting on equity? A cash-out refinance in San Mateo County can go up to 80% of value — about $180,000 in your pocket on the numbers above — for renovations, debt payoff, or investing.
| Cash-Out Figure | Amount |
|---|---|
| Appraised value (est.) | $1,500,000 |
| Balance you owe now | $1,020,000 |
| Max new loan at 80% LTV | $1,200,000 |
| Cash you could pull out | $180,000 |
In San Mateo County, California, property taxes average roughly 0.75% of value, so escrow on a $1,500,000 home adds about $938/month beyond principal and interest. A $1,020,000 balance sits near 68% loan-to-value, leaving about $480,000 in equity — room for a rate-and-term refinance now and a cash-out later around San Mateo County.
Conforming & jumbo limits in San Mateo County
San Mateo County's 2026 conforming limit is $1,249,125 for a single-family home — a high-cost figure above the $806,500 national baseline. Refinance a balance above it and you are in jumbo territory, which carries its own rates and guidelines.
- San Mateo County value about $1,500,000 with a $1,020,000 balance (~68% LTV).
- Monthly savings near $852; break-even around month 30 on $25,500 of costs.
- Five-year net of about $25,600 and cash-out room near $180,000.
- Conforming limit $1,249,125; current equity roughly $480,000 near San Mateo County.
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Frequently Asked Questions
- What could a refinance save me in San Mateo County?
- On a typical $1,020,000 balance, moving from about 7.50% to 6.25% saves roughly $852/month in principal and interest. Your savings depend on your current rate, balance, and term.
- What is my cash-out limit in San Mateo County?
- Conventional cash-out refinances are capped at 80% of appraised value. On an estimated $1,500,000 San Mateo County home with a $1,020,000 balance, that is about $180,000 in available cash.
- When does a San Mateo County refinance turn jumbo?
- The 2026 conforming limit is $1,249,125 for a one-unit home (a high-cost county above the $806,500 baseline). Refinances above that are jumbo loans.
- How fast do I break even in San Mateo County?
- Divide your closing costs (about $25,500 here) by your monthly savings. In this example you break even near month 30 — refinance only if you will keep the home past that.
- How much equity is in a typical San Mateo County-area home?
- On an estimated $1,500,000 value with a $1,020,000 balance, that is about $480,000 in equity — roughly 32%. A conventional cash-out requires you to keep 20%.
- Is now a good time to refinance in San Mateo County?
- A common rule of thumb: refinance when you can cut your rate by about 0.75 to 1% and stay past your break-even (near month 30 here). On a $1,020,000 San Mateo County balance, that move is worth roughly $852 a month.