City comparison
Cupertino, CA is about 400 miles (650 km) from San Marcos, CA in a straight line. By road, the drive is roughly 500 miles, or about 8 h 15 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 Cupertino, CA to San Marcos, CA takes about 48 min, covering roughly 400 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 Marcos has a population of 94,360, vs 59,763 in Cupertino — about 1.6× larger by population. By land area, San Marcos covers about 25 sq mi vs 11 sq mi for Cupertino.
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 | Cupertino | San Marcos | Difference |
|---|---|---|---|
| Median rent | $3,501/mo | $2,064/mo | 69.6% higher in Cupertino |
| Median home value | $2,000,001 | $728,800 | 174.4% higher in Cupertino |
| Median household income | $223,667 | $99,413 | 125.0% higher in Cupertino |
| Groceries index | 105.1 | 107.6 | 2.4% higher in San Marcos |
| Utilities index | 153.8 | 169.8 | 10.4% higher in San Marcos |
| Transportation index | 100.7 | 100.0 | 0.6% higher in Cupertino |
| Healthcare index | 100.6 | 100.0 | 0.6% higher in Cupertino |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Cupertino, you'd need $90,223 in San Marcos to maintain your standard of living.
Climate, safety, and demographics side by side.
San Marcos, CA is about 9.8% cheaper overall than Cupertino, CA, based on our cost-of-living index. Housing costs are roughly 22% higher in Cupertino than in San Marcos. If you earn $80,000 in Cupertino, you'd need about $72,178 in San Marcos to keep the same standard of living.