City comparison
San Marcos, CA is about 10 miles (10 km) from Vista, CA in a straight line. By road, the drive is roughly 10 miles, or about 7 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 Marcos, CA to Vista, CA takes about 1 min, covering roughly 10 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.
Vista has a population of 98,392, vs 94,360 in San Marcos — about the same size. By land area, San Marcos covers about 25 sq mi vs 19 sq mi for Vista.
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 Marcos | Vista | Difference |
|---|---|---|---|
| Median rent | $2,064/mo | $2,002/mo | 3.1% higher in San Marcos |
| Median home value | $728,800 | $622,900 | 17.0% higher in San Marcos |
| Median household income | $99,413 | $88,715 | 12.1% higher in San Marcos |
| Groceries index | 107.6 | 107.6 | ≈ equal |
| Utilities index | 169.8 | 169.8 | ≈ equal |
| Transportation index | 100.0 | 100.0 | ≈ equal |
| Healthcare index | 100.0 | 100.0 | ≈ 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 San Marcos, you'd need $99,872 in Vista to maintain your standard of living.
Climate, safety, and demographics side by side.
San Marcos and Vista have nearly identical overall cost-of-living indices. If you earn $80,000 in San Marcos, you'd need about $79,897 in Vista to keep the same standard of living.