City comparison
Costa Mesa, CA is about 40 miles (70 km) from Santa Monica, CA in a straight line. By road, the drive is roughly 50 miles, or about 52 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 Costa Mesa, CA to Santa Monica, CA takes about 5 min, covering roughly 40 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.
Costa Mesa has a population of 111,490, vs 92,168 in Santa Monica — about 1.2× larger by population. By land area, Costa Mesa covers about 16 sq mi vs 8.4 sq mi for Santa Monica.
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 | Costa Mesa | Santa Monica | Difference |
|---|---|---|---|
| Median rent | $2,268/mo | $2,227/mo | 1.8% higher in Costa Mesa |
| Median home value | $959,800 | $1,654,800 | 72.4% higher in Santa Monica |
| Median household income | $104,981 | $106,797 | 1.7% higher in Santa Monica |
| Groceries index | 106.4 | 106.4 | ≈ equal |
| Utilities index | 155.6 | 155.6 | ≈ equal |
| Transportation index | 104.4 | 104.4 | ≈ equal |
| Healthcare index | 104.3 | 104.3 | ≈ 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 Costa Mesa, you'd need $99,913 in Santa Monica to maintain your standard of living.
Climate, safety, and demographics side by side.
Costa Mesa and Santa Monica have nearly identical overall cost-of-living indices. If you earn $80,000 in Costa Mesa, you'd need about $79,930 in Santa Monica to keep the same standard of living.