City comparison
Aurora, CO is about 20 miles (30 km) from Thornton, CO in a straight line. By road, the drive is roughly 20 miles, or about 23 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 Aurora, CO to Thornton, CO 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.
Aurora has a population of 387,349, vs 141,799 in Thornton — about 2.7× larger by population. By land area, Aurora covers about 165 sq mi vs 37 sq mi for Thornton.
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 | Aurora | Thornton | Difference |
|---|---|---|---|
| Median rent | $1,651/mo | $1,758/mo | 6.5% higher in Thornton |
| Median home value | $409,700 | $445,200 | 8.7% higher in Thornton |
| Median household income | $78,685 | $95,064 | 20.8% higher in Thornton |
| Groceries index | 101.2 | 101.2 | ≈ equal |
| Utilities index | 91.2 | 91.2 | ≈ equal |
| Transportation index | 99.9 | 99.9 | ≈ equal |
| Healthcare index | 99.9 | 99.9 | ≈ 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 Aurora, you'd need $100,270 in Thornton to maintain your standard of living.
Climate, safety, and demographics side by side.
Aurora and Thornton have nearly identical overall cost-of-living indices. If you earn $80,000 in Aurora, you'd need about $80,216 in Thornton to keep the same standard of living.