City comparison
Phoenix, AZ is about 600 miles (1,000 km) from Union City, CA 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 Phoenix, AZ to Union City, CA takes about 1 h 15 min, covering roughly 600 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.
Phoenix, AZ is on Mountain Time and Union City, CA is on Pacific Time — a 1-hour difference. When it's noon in Phoenix, it's 11 a.m. in Union City, which puts Phoenix 1 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.
Phoenix has a population of 1,609,456, vs 69,502 in Union City — about 23.2× larger by population. By land area, Phoenix covers about 520 sq mi vs 19 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 | Phoenix | Union City | Difference |
|---|---|---|---|
| Median rent | $1,322/mo | $2,593/mo | 96.1% higher in Union City |
| Median home value | $340,200 | $1,006,600 | 195.9% higher in Union City |
| Median household income | $72,092 | $138,013 | 91.4% higher in Union City |
| Groceries index | 95.8 | 108.1 | 12.8% higher in Union City |
| Utilities index | 96.2 | 168.3 | 75.0% higher in Union City |
| Transportation index | 104.1 | 106.1 | 1.9% higher in Union City |
| Healthcare index | 104.0 | 106.0 | 1.9% 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 Phoenix, you'd need $137,993 in Union City to maintain your standard of living.
Climate, safety, and demographics side by side.
Phoenix, AZ is about 27.5% cheaper overall than Union City, CA, based on our cost-of-living index. Housing costs are roughly 63% higher in Union City than in Phoenix. If you earn $80,000 in Phoenix, you'd need about $110,394 in Union City to keep the same standard of living.