City comparison
San Diego, CA is about 700 miles (1,100 km) from Twin Falls, ID in a straight line. By road, the drive is roughly 850 miles, or about 14 hours 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 Twin Falls, ID takes about 1 h 23 min, covering roughly 700 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 52,315 in Twin Falls — about 26.5× larger by population. By land area, San Diego covers about 325 sq mi vs 20 sq mi for Twin Falls.
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 | Twin Falls | Difference |
|---|---|---|---|
| Median rent | $2,080/mo | $952/mo | 118.5% higher in San Diego |
| Median home value | $783,300 | $243,700 | 221.4% higher in San Diego |
| Median household income | $98,657 | $58,024 | 70.0% higher in San Diego |
| Groceries index | 107.6 | 96.9 | 11.1% higher in San Diego |
| Utilities index | 169.8 | 74.9 | 126.6% higher in San Diego |
| Transportation index | 100.0 | 99.5 | 0.6% higher in San Diego |
| Healthcare index | 100.0 | 99.4 | 0.6% higher in San Diego |
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 $60,769 in Twin Falls to maintain your standard of living.
Climate, safety, and demographics side by side.
Twin Falls, ID is about 39.2% cheaper overall than San Diego, CA, based on our cost-of-living index. Housing costs are roughly 146% higher in San Diego than in Twin Falls. If you earn $80,000 in San Diego, you'd need about $48,615 in Twin Falls to keep the same standard of living.