Housing is the variable that matters. Utilities and groceries are nearly identical across the Peninsula — but a choice between San Mateo and Palo Alto can mean a $12,000 monthly difference in ownership costs.
Silicon Valley cost-of-living comparisons often mislead because they treat every line item as a city variable. On the Peninsula, most line items are not city variables. PG&E's residential electric and gas rates are filed with the California Public Utilities Commission and apply uniformly from Daly City to San Jose — Millbrae and Los Altos Hills pay identical per-kilowatt-hour rates. Groceries at Safeway or Whole Foods price similarly from Burlingame to Redwood City. Commute cost depends on your employer, not your city of residence.
What does vary substantially by city is housing. The September 2026 median single-family sale price ranges from $2.175 million in San Mateo to $13 million in Atherton, per MLS data compiled by SAMCAR and SCCAOR. That spread translates directly into mortgage payments, property taxes, homeowner's insurance, and HOA dues (where applicable). The table below makes the housing cost difference visible across 13 Peninsula cities.
For deeper reading on Silicon Valley's overall cost of living, see Cost of Living in Silicon Valley: What You Need to Know Before Moving in 2025 and The Cost of Living in San Mateo: Is It Worth It?
Median sale prices from MLSListings Inc., compiled by SAMCAR (San Mateo County Association of Realtors) and SCCAOR (Santa Clara County Association of Realtors) for September 2026. Monthly housing cost is illustrative — see assumptions below the table.
| City | Median Home Price (Sep 2026, single-family) |
Est. Monthly Housing Cost |
Prop. 13 Base Rate | Notes |
|---|---|---|---|---|
| Atherton | $13,000,000 | ~$78,500 | 1.00% + levies | No commercial district; one-acre minimum lots; 94027 zip |
| Los Altos Hills | $6,500,000 | ~$39,400 | 1.00% + levies | Santa Clara County; hillside lots; no city utilities |
| Hillsborough | $6,075,000 | ~$36,800 | 1.00% + levies | San Mateo County; top-ranked public schools; no commercial |
| Los Altos | $5,126,000 | ~$31,100 | 1.00% + levies | Santa Clara County; walkable downtown village |
| Menlo Park | $4,169,194 | ~$25,400 | 1.00% + levies | San Mateo County; Caltrain; Sand Hill Road tech corridor |
| Palo Alto | $4,168,500 | ~$25,400 | 1.00% + levies | Santa Clara County; Stanford adjacent; city transfer tax $4.40/$1K |
| Burlingame | $3,195,000 | ~$19,500 | 1.00% + levies | San Mateo County; Caltrain; SFO proximity |
| San Carlos | $2,750,000 | ~$16,800 | 1.00% + levies | San Mateo County; "City of Good Living"; Caltrain |
| Belmont | $2,715,000 | ~$16,600 | 1.00% + levies | San Mateo County; hills and flatlands; Caltrain |
| Foster City | $2,562,000 | ~$15,700 | 1.00% + levies | San Mateo County; planned community; waterfront parks |
| Redwood City | $2,455,000 | ~$15,100 | 1.00% + levies | San Mateo County; county seat; Caltrain; growing downtown |
| Millbrae | $2,355,000 | ~$14,500 | 1.00% + levies | San Mateo County; BART + Caltrain; SFO access |
| San Mateo | $2,175,000 | ~$13,400 | 1.00% + levies | San Mateo County; city transfer tax $6.10/$1K; widest price range |
Monthly housing cost is illustrative, not a loan commitment. Calculation: 20% down payment; 30-year fixed rate of 6.5% (approximate, per Freddie Mac Primary Mortgage Market Survey); monthly P&I factor of 0.006321 per dollar of loan; property tax at an estimated 1.15% effective rate (Prop. 13 base of 1.00% plus typical bond levy add-ons per San Mateo County Assessor-Controller and Santa Clara County Assessor Tax Rate Area tables); homeowner's insurance at $300/month (illustrative). Actual payments depend on your specific loan terms, credit profile, down payment, and parcel-level tax rate. Consult a licensed lender for a formal estimate.
PG&E serves the entire Peninsula under rates filed with the California Public Utilities Commission. Whether you live in Millbrae or Menlo Park, your electric and gas rates are identical. The E-1 Residential Electric rate schedule and G-1 Residential Gas rate schedule are the same tariffs for every PG&E residential customer from Daly City to San Jose.
The E-1 rate averages approximately $0.31–$0.43/kWh in tiers for a household using 500–700 kWh/month, per the E-1 tariff schedule PG&E files with the CPUC. Natural gas costs rise significantly in winter in homes with gas heat. Water rates are set by local water districts and do vary, but not on a simple city-to-city basis — a parcel in Atherton may be served by one district and an adjacent parcel by another. Budget utilities at roughly $400/month for a moderately-sized Peninsula home as a starting estimate, and verify with PG&E and your local water district for your specific address.
Housing is overwhelmingly the driver. Groceries, utilities, and transportation vary minimally city to city within the Peninsula — PG&E rates are uniform across their service territory, and major grocery chains price similarly from Millbrae to Menlo Park. The gap between San Mateo and Atherton is almost entirely explained by a $10 million difference in median single-family home price, which flows through to mortgage payments, property taxes, and insurance. Two households in the same income bracket making different city choices can see a $50,000+ annual difference in ownership costs.
Proposition 13 (Article XIII A of the California Constitution, enacted 1978) limits the annual property tax base rate to 1% of assessed value and caps annual increases at 2% per year until the property transfers. When a home sells, it is reassessed at the purchase price. Peninsula cities and school districts layer voter-approved bond levies on top of the 1% base. In San Mateo County the effective total rate is typically 1.05% to 1.25%; in Santa Clara County, 1.10% to 1.30%, per Tax Rate Area tables published by the respective county assessors. The precise rate depends on which school district, water district, and special district bonds apply to the parcel — ask your agent for the specific Tax Rate Area code when you are in contract.
No. PG&E's tariff schedules filed with the California Public Utilities Commission apply uniformly across their entire service territory. The E-1 Residential Electric rate and G-1 Residential Gas rate are identical whether you live in Millbrae or Los Altos Hills. Utility costs are not a meaningful differentiator between Peninsula cities and should not factor into a city comparison — they factor into total budget, but equally across the board.
Using Fannie Mae's back-end debt-to-income guideline of 43% (Fannie Mae Selling Guide B3-6-02, for conventionally underwritten loans with no other debt obligations), a buyer would need approximately $59,000 per month in qualifying gross income ($708,000 per year) to support the estimated $25,400 monthly ownership cost at Palo Alto's $4.17 million median at 20% down and 6.5% financing. At San Mateo's $2.175 million median, the same 43% DTI implies approximately $31,200 per month ($374,000 per year). Two-income tech households often qualify via combined base salaries plus documented RSU income. These are illustrative — actual qualification depends on down payment, existing debts, credit score, and lender guidelines.
Every city on this list has a neighborhood that fits a different set of priorities. Lisa has closed transactions across the Peninsula and can walk you through what ownership actually costs — and what you get for it — in each city you are considering.
Talk to Lisa