City comparison
San Jose, CA is about 2,500 miles (4,100 km) from Union City, NJ in a straight line. By road, the drive is roughly 3,200 miles, or about 53 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 San Jose, CA to Union City, NJ takes about 5 h 5 min, covering roughly 2,500 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.
San Jose, CA is on Pacific Time and Union City, NJ is on Eastern Time — a 3-hour difference. When it's noon in San Jose, it's 3 p.m. in Union City, which puts San Jose 3 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.
San Jose has a population of 1,001,176, vs 67,258 in Union City — about 14.9× larger by population. By land area, San Jose covers about 180 sq mi vs 1.3 sq mi for Union City.
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 | San Jose | Union City | Difference |
|---|---|---|---|
| Median rent | $2,526/mo | $1,415/mo | 78.5% higher in San Jose |
| Median home value | $1,149,600 | $448,000 | 156.6% higher in San Jose |
| Median household income | $136,010 | $59,967 | 126.8% higher in San Jose |
| Groceries index | 105.1 | 109.4 | 4.1% higher in Union City |
| Utilities index | 153.8 | 124.5 | 23.5% higher in San Jose |
| Transportation index | 100.7 | 105.0 | 4.3% higher in Union City |
| Healthcare index | 100.6 | 105.7 | 5.1% higher in Union City |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in San Jose, you'd need $81,570 in Union City to maintain your standard of living.
Climate, safety, and demographics side by side.
Union City, NJ is about 18.4% cheaper overall than San Jose, CA, based on our cost-of-living index. Housing costs are roughly 45% higher in San Jose than in Union City. If you earn $80,000 in San Jose, you'd need about $65,256 in Union City to keep the same standard of living.