City comparison
Antelope, CA is about 900 miles (1,400 km) from Castle Rock, CO in a straight line. By road, the drive is roughly 1,100 miles, or about 18 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 Antelope, CA to Castle Rock, CO takes about 1 h 46 min, covering roughly 900 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.
Antelope, CA is on Pacific Time and Castle Rock, CO is on Mountain Time — a 1-hour difference. When it's noon in Antelope, it's 1 p.m. in Castle Rock, which puts Antelope 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.
Castle Rock has a population of 74,065, vs 47,629 in Antelope — about 1.6× larger by population. By land area, Castle Rock covers about 35 sq mi vs 6.8 sq mi for Antelope.
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 | Antelope | Castle Rock | Difference |
|---|---|---|---|
| Median rent | $1,937/mo | $1,810/mo | 7.0% higher in Antelope |
| Median home value | $433,400 | $577,500 | 33.2% higher in Castle Rock |
| Median household income | $92,117 | $135,985 | 47.6% higher in Castle Rock |
| Groceries index | 105.1 | 101.2 | 3.8% higher in Antelope |
| Utilities index | 148.9 | 91.2 | 63.3% higher in Antelope |
| Transportation index | 100.7 | 99.9 | 0.8% higher in Antelope |
| Healthcare index | 100.6 | 99.9 | 0.7% higher in Antelope |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Antelope, you'd need $99,983 in Castle Rock to maintain your standard of living.
Climate, safety, and demographics side by side.
Antelope and Castle Rock have nearly identical overall cost-of-living indices. Housing costs are roughly 11% higher in Castle Rock than in Antelope. If you earn $80,000 in Antelope, you'd need about $79,987 in Castle Rock to keep the same standard of living.