City comparison
Cypress, CA is about 20 miles (30 km) from Diamond Bar, CA in a straight line. By road, the drive is roughly 20 miles, or about 22 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 Cypress, CA to Diamond Bar, CA takes about 2 min, covering roughly 20 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.
Diamond Bar has a population of 54,534, vs 49,955 in Cypress — about the same size. By land area, Diamond Bar covers about 15 sq mi vs 6.6 sq mi for Cypress.
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 | Cypress | Diamond Bar | Difference |
|---|---|---|---|
| Median rent | $2,309/mo | $2,332/mo | 1.0% higher in Diamond Bar |
| Median home value | $825,800 | $829,000 | 0.4% higher in Diamond Bar |
| Median household income | $117,461 | $106,881 | 9.9% higher in Cypress |
| 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 Cypress, you'd need $100,051 in Diamond Bar to maintain your standard of living.
Climate, safety, and demographics side by side.
Cypress and Diamond Bar have nearly identical overall cost-of-living indices. If you earn $80,000 in Cypress, you'd need about $80,041 in Diamond Bar to keep the same standard of living.