City comparison
Castro Valley, CA is about 30 miles (50 km) from San Jose, CA in a straight line. By road, the drive is roughly 40 miles, or about 39 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 Castro Valley, CA to San Jose, CA takes about 4 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 Jose has a population of 1,001,176, vs 65,444 in Castro Valley — about 15.3× larger by population. By land area, San Jose covers about 180 sq mi vs 17 sq mi for Castro Valley.
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 | Castro Valley | San Jose | Difference |
|---|---|---|---|
| Median rent | $2,383/mo | $2,526/mo | 6.0% higher in San Jose |
| Median home value | $1,013,900 | $1,149,600 | 13.4% higher in San Jose |
| Median household income | $132,174 | $136,010 | 2.9% higher in San Jose |
| Groceries index | 108.1 | 105.1 | 2.9% higher in Castro Valley |
| Utilities index | 168.3 | 153.8 | 9.4% higher in Castro Valley |
| Transportation index | 106.1 | 100.7 | 5.4% higher in Castro Valley |
| Healthcare index | 106.0 | 100.6 | 5.4% higher in Castro Valley |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Castro Valley, you'd need $102,352 in San Jose to maintain your standard of living.
Climate, safety, and demographics side by side.
Castro Valley, CA is about 2.3% cheaper overall than San Jose, CA, based on our cost-of-living index. Housing costs are roughly 9% higher in San Jose than in Castro Valley. If you earn $80,000 in Castro Valley, you'd need about $81,882 in San Jose to keep the same standard of living.