City comparison
Castro Valley, CA is about 20 miles (40 km) from Daly City, CA in a straight line. By road, the drive is roughly 30 miles, or about 27 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 Daly City, CA takes about 3 min, covering roughly 20 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.
Daly City has a population of 103,648, vs 65,444 in Castro Valley — about 1.6× larger by population. By land area, Castro Valley covers about 17 sq mi vs 7.7 sq mi for Daly City.
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 | Daly City | Difference |
|---|---|---|---|
| Median rent | $2,383/mo | $2,554/mo | 7.2% higher in Daly City |
| Median home value | $1,013,900 | $1,073,100 | 5.8% higher in Daly City |
| Median household income | $132,174 | $114,910 | 15.0% higher in Castro Valley |
| 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 Castro Valley, you'd need $100,342 in Daly City to maintain your standard of living.
Climate, safety, and demographics side by side.
Castro Valley, CA is about 0.3% cheaper overall than Daly City, CA, based on our cost-of-living index. If you earn $80,000 in Castro Valley, you'd need about $80,273 in Daly City to keep the same standard of living.