City comparison
Frederick, MD is about 2,300 miles (3,700 km) from Rocklin, CA in a straight line. By road, the drive is roughly 2,900 miles, or about 48 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 Frederick, MD to Rocklin, CA takes about 4 h 39 min, covering roughly 2,300 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.
Frederick, MD is on Eastern Time and Rocklin, CA is on Pacific Time — a 3-hour difference. When it's noon in Frederick, it's 9 a.m. in Rocklin, which puts Frederick 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.
Frederick has a population of 78,390, vs 71,676 in Rocklin — about the same size. By land area, Frederick covers about 24 sq mi vs 20 sq mi for Rocklin.
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 | Frederick | Rocklin | Difference |
|---|---|---|---|
| Median rent | $1,614/mo | $2,109/mo | 30.7% higher in Rocklin |
| Median home value | $343,800 | $637,200 | 85.3% higher in Rocklin |
| Median household income | $89,981 | $116,006 | 28.9% higher in Rocklin |
| Groceries index | 103.8 | 105.1 | 1.3% higher in Rocklin |
| Utilities index | 106.4 | 148.9 | 40.0% higher in Rocklin |
| Transportation index | 102.0 | 100.7 | 1.3% higher in Frederick |
| Healthcare index | 101.5 | 100.6 | 0.9% higher in Frederick |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Frederick, you'd need $100,025 in Rocklin to maintain your standard of living.
Climate, safety, and demographics side by side.
Frederick and Rocklin have nearly identical overall cost-of-living indices. Housing costs are roughly 6% higher in Frederick than in Rocklin. If you earn $80,000 in Frederick, you'd need about $80,020 in Rocklin to keep the same standard of living.