City comparison
San Diego, CA is about 80 miles (125 km) from Santa Ana, CA in a straight line. By road, the drive is roughly 100 miles, or about 1 h 30 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 Diego, CA to Santa Ana, CA takes about 9 min, covering roughly 80 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 311,379 in Santa Ana — about 4.4× larger by population. By land area, San Diego covers about 325 sq mi vs 27 sq mi for Santa Ana.
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 Diego | Santa Ana | Difference |
|---|---|---|---|
| Median rent | $2,080/mo | $1,885/mo | 10.3% higher in San Diego |
| Median home value | $783,300 | $624,000 | 25.5% higher in San Diego |
| Median household income | $98,657 | $84,210 | 17.2% higher in San Diego |
| Groceries index | 107.6 | 106.4 | 1.1% higher in San Diego |
| Utilities index | 169.8 | 155.6 | 9.2% higher in San Diego |
| Transportation index | 100.0 | 104.4 | 4.3% higher in Santa Ana |
| Healthcare index | 100.0 | 104.3 | 4.3% higher in Santa Ana |
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 Diego, you'd need $97,096 in Santa Ana to maintain your standard of living.
Climate, safety, and demographics side by side.
Santa Ana, CA is about 2.9% cheaper overall than San Diego, CA, based on our cost-of-living index. Housing costs are roughly 6% higher in San Diego than in Santa Ana. If you earn $80,000 in San Diego, you'd need about $77,677 in Santa Ana to keep the same standard of living.