City comparison
Philadelphia, PA is about 2,500 miles (4,000 km) from Walnut Creek, CA in a straight line. By road, the drive is roughly 3,100 miles, or about 52 hours (about 5 days at 10 h/day) 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 Philadelphia, PA to Walnut Creek, CA takes about 4 h 59 min, covering roughly 2,500 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.
Philadelphia, PA is on Eastern Time and Walnut Creek, CA is on Pacific Time — a 3-hour difference. When it's noon in Philadelphia, it's 9 a.m. in Walnut Creek, which puts Philadelphia 3 hours ahead.
Standard-time offsets. Daylight saving applies in both cities for most of the year (exceptions: Hawaii and most of Arizona), and the gap between the two stays the same.
Philadelphia has a population of 1,593,208, vs 69,809 in Walnut Creek — about 22.8× larger by population. By land area, Philadelphia covers about 135 sq mi vs 20 sq mi for Walnut Creek.
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 | Philadelphia | Walnut Creek | Difference |
|---|---|---|---|
| Median rent | $1,250/mo | $2,503/mo | 100.2% higher in Walnut Creek |
| Median home value | $215,500 | $972,800 | 351.4% higher in Walnut Creek |
| Median household income | $57,537 | $129,971 | 125.9% higher in Walnut Creek |
| Groceries index | 97.0 | 108.1 | 11.4% higher in Walnut Creek |
| Utilities index | 112.3 | 168.3 | 49.8% higher in Walnut Creek |
| Transportation index | 101.7 | 106.1 | 4.3% higher in Walnut Creek |
| Healthcare index | 102.7 | 106.0 | 3.3% higher in Walnut Creek |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Philadelphia, you'd need $140,777 in Walnut Creek to maintain your standard of living.
Climate, safety, and demographics side by side.
Philadelphia, PA is about 29% cheaper overall than Walnut Creek, CA, based on our cost-of-living index. Housing costs are roughly 74% higher in Walnut Creek than in Philadelphia. If you earn $80,000 in Philadelphia, you'd need about $112,622 in Walnut Creek to keep the same standard of living.