City comparison
Folsom, CA is about 450 miles (750 km) from San Diego, CA in a straight line. By road, the drive is roughly 600 miles, or about 9 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 Folsom, CA to San Diego, CA takes about 55 min, covering roughly 450 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 81,077 in Folsom — about 17.1× larger by population. By land area, San Diego covers about 325 sq mi vs 28 sq mi for Folsom.
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 | Folsom | San Diego | Difference |
|---|---|---|---|
| Median rent | $2,164/mo | $2,080/mo | 4.0% higher in Folsom |
| Median home value | $673,000 | $783,300 | 16.4% higher in San Diego |
| Median household income | $134,935 | $98,657 | 36.8% higher in Folsom |
| Groceries index | 105.1 | 107.6 | 2.4% higher in San Diego |
| Utilities index | 148.9 | 169.8 | 14.0% higher in San Diego |
| Transportation index | 100.7 | 100.0 | 0.6% higher in Folsom |
| Healthcare index | 100.6 | 100.0 | 0.6% higher in Folsom |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Folsom, you'd need $117,308 in San Diego to maintain your standard of living.
Climate, safety, and demographics side by side.
Folsom, CA is about 14.8% cheaper overall than San Diego, CA, based on our cost-of-living index. Housing costs are roughly 33% higher in San Diego than in Folsom. If you earn $80,000 in Folsom, you'd need about $93,847 in San Diego to keep the same standard of living.