City comparison
Castle Rock, CO is about 650 miles (1,000 km) from Dallas, TX in a straight line. By road, the drive is roughly 800 miles, or about 13 hours 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 Castle Rock, CO to Dallas, TX takes about 1 h 17 min, covering roughly 650 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.
Castle Rock, CO is on Mountain Time and Dallas, TX is on Central Time — a 1-hour difference. When it's noon in Castle Rock, it's 1 p.m. in Dallas, which puts Castle Rock 1 hours behind.
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.
Dallas has a population of 1,300,642, vs 74,065 in Castle Rock — about 17.6× larger by population. By land area, Dallas covers about 340 sq mi vs 35 sq mi for Castle Rock.
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 | Castle Rock | Dallas | Difference |
|---|---|---|---|
| Median rent | $1,810/mo | $1,305/mo | 38.7% higher in Castle Rock |
| Median home value | $577,500 | $270,700 | 113.3% higher in Castle Rock |
| Median household income | $135,985 | $63,985 | 112.5% higher in Castle Rock |
| Groceries index | 101.2 | 101.7 | ≈ equal (Dallas slightly higher) |
| Utilities index | 91.2 | 89.3 | 2.2% higher in Castle Rock |
| Transportation index | 99.9 | 98.5 | 1.4% higher in Castle Rock |
| Healthcare index | 99.9 | 99.7 | ≈ equal (Castle Rock slightly higher) |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Castle Rock, you'd need $88,990 in Dallas to maintain your standard of living.
Climate, safety, and demographics side by side.
Dallas, TX is about 11% cheaper overall than Castle Rock, CO, based on our cost-of-living index. Housing costs are roughly 26% higher in Castle Rock than in Dallas. If you earn $80,000 in Castle Rock, you'd need about $71,192 in Dallas to keep the same standard of living.