City comparison
Diamond Bar, CA is about 20 miles (30 km) from Lakewood, CA in a straight line. By road, the drive is roughly 30 miles, or about 26 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 Diamond Bar, CA to Lakewood, 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.
Lakewood has a population of 81,499, vs 54,534 in Diamond Bar — about 1.5× larger by population. By land area, Diamond Bar covers about 15 sq mi vs 9.4 sq mi for Lakewood.
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 | Diamond Bar | Lakewood | Difference |
|---|---|---|---|
| Median rent | $2,332/mo | $2,233/mo | 4.4% higher in Diamond Bar |
| Median home value | $829,000 | $695,200 | 19.2% higher in Diamond Bar |
| Median household income | $106,881 | $113,030 | 5.8% higher in Lakewood |
| 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 Diamond Bar, you'd need $99,782 in Lakewood to maintain your standard of living.
Climate, safety, and demographics side by side.
Diamond Bar and Lakewood have nearly identical overall cost-of-living indices. If you earn $80,000 in Diamond Bar, you'd need about $79,826 in Lakewood to keep the same standard of living.