City comparison
Columbia, MD is about 100 miles (175 km) from Philadelphia, PA in a straight line. By road, the drive is roughly 125 miles, or about 2 h 15 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 Columbia, MD to Philadelphia, PA takes about 13 min, covering roughly 100 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 has a population of 1,593,208, vs 106,600 in Columbia — about 14.9× larger by population. By land area, Philadelphia covers about 135 sq mi vs 32 sq mi for Columbia.
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 | Columbia | Philadelphia | Difference |
|---|---|---|---|
| Median rent | $1,895/mo | $1,250/mo | 51.6% higher in Columbia |
| Median home value | $458,700 | $215,500 | 112.9% higher in Columbia |
| Median household income | $124,537 | $57,537 | 116.4% higher in Columbia |
| Groceries index | 102.0 | 97.0 | 5.2% higher in Columbia |
| Utilities index | 108.8 | 112.3 | 3.2% higher in Philadelphia |
| Transportation index | 101.4 | 101.7 | ≈ equal (Philadelphia slightly higher) |
| Healthcare index | 100.9 | 102.7 | 1.8% higher in Philadelphia |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Columbia, you'd need $96,233 in Philadelphia to maintain your standard of living.
Climate, safety, and demographics side by side.
Philadelphia, PA is about 3.8% cheaper overall than Columbia, MD, based on our cost-of-living index. Housing costs are roughly 8% higher in Columbia than in Philadelphia. If you earn $80,000 in Columbia, you'd need about $76,986 in Philadelphia to keep the same standard of living.