City comparison
San Mateo, CA is about 30 miles (40 km) from San Ramon, CA in a straight line. By road, the drive is roughly 30 miles, or about 31 min behind the wheel at highway speeds.
Driving distance is a rough estimate (great-circle × 1.25); driving time assumes a 60 mph blended average. Real trips run 10–20% longer with stops.
A direct flight from San Mateo, CA to San Ramon, CA takes about 3 min, covering roughly 30 miles in a straight line. Connecting itineraries with a layover typically add 1–3 hours.
Block-to-block estimate at ~500 mph cruise, including taxi, climb, and descent — what an airline would publish, not pure airborne time.
San Mateo has a population of 104,165, vs 86,119 in San Ramon — about 1.2× larger by population. By land area, San Ramon covers about 20 sq mi vs 12 sq mi for San Mateo.
Population from US Census ACS. Land area from the Census Gazetteer (city proper, excluding inland water).
Cost indices by category, with the US city average (100) marked.
Index: 100 = US city average. Lower is more affordable.
Side-by-side costs, salaries, and sub-category indices.
| Metric | San Mateo | San Ramon | Difference |
|---|---|---|---|
| Median rent | $2,971/mo | $2,768/mo | 7.3% higher in San Mateo |
| Median home value | $1,508,900 | $1,254,900 | 20.2% higher in San Mateo |
| Median household income | $149,152 | $190,829 | 27.9% higher in San Ramon |
| Groceries index | 108.1 | 108.1 | ≈ equal |
| Utilities index | 168.3 | 168.3 | ≈ equal |
| Transportation index | 106.1 | 106.1 | ≈ equal |
| Healthcare index | 106.0 | 106.0 | ≈ equal |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in San Mateo, you'd need $99,596 in San Ramon to maintain your standard of living.
Climate, safety, and demographics side by side.
San Ramon, CA is about 0.4% cheaper overall than San Mateo, CA, based on our cost-of-living index. If you earn $80,000 in San Mateo, you'd need about $79,677 in San Ramon to keep the same standard of living.