City comparison
Newark, CA is about 425 miles (700 km) from San Diego, CA in a straight line. By road, the drive is roughly 550 miles, or about 8 h 45 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 Newark, CA to San Diego, CA takes about 51 min, covering roughly 425 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 Diego has a population of 1,383,987, vs 47,470 in Newark — about 29.2× larger by population. By land area, San Diego covers about 325 sq mi vs 14 sq mi for Newark.
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 | Newark | San Diego | Difference |
|---|---|---|---|
| Median rent | $2,644/mo | $2,080/mo | 27.1% higher in Newark |
| Median home value | $1,034,900 | $783,300 | 32.1% higher in Newark |
| Median household income | $159,465 | $98,657 | 61.6% higher in Newark |
| Groceries index | 108.1 | 107.6 | ≈ equal (Newark slightly higher) |
| Utilities index | 168.3 | 169.8 | 0.9% higher in San Diego |
| Transportation index | 106.1 | 100.0 | 6.0% higher in Newark |
| Healthcare index | 106.0 | 100.0 | 6.0% higher in Newark |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Newark, you'd need $93,660 in San Diego to maintain your standard of living.
Climate, safety, and demographics side by side.
San Diego, CA is about 6.3% cheaper overall than Newark, CA, based on our cost-of-living index. Housing costs are roughly 10% higher in Newark than in San Diego. If you earn $80,000 in Newark, you'd need about $74,928 in San Diego to keep the same standard of living.