City comparison
Killeen, TX is about 125 miles (200 km) from San Antonio, TX in a straight line. By road, the drive is roughly 150 miles, or about 2 h 30 min 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 Killeen, TX to San Antonio, TX takes about 15 min, covering roughly 125 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 Antonio has a population of 1,445,662, vs 153,708 in Killeen — about 9.4× larger by population. By land area, San Antonio covers about 500 sq mi vs 55 sq mi for Killeen.
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 | Killeen | San Antonio | Difference |
|---|---|---|---|
| Median rent | $1,084/mo | $1,189/mo | 9.7% higher in San Antonio |
| Median home value | $175,400 | $198,000 | 12.9% higher in San Antonio |
| Median household income | $57,086 | $59,593 | 4.4% higher in San Antonio |
| Groceries index | 94.2 | 94.2 | ≈ equal |
| Utilities index | 82.5 | 83.3 | 1.0% higher in San Antonio |
| Transportation index | 96.6 | 96.6 | ≈ equal |
| Healthcare index | 96.1 | 96.1 | ≈ equal |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Killeen, you'd need $107,816 in San Antonio to maintain your standard of living.
Climate, safety, and demographics side by side.
Killeen, TX is about 7.2% cheaper overall than San Antonio, TX, based on our cost-of-living index. Housing costs are roughly 20% higher in San Antonio than in Killeen. If you earn $80,000 in Killeen, you'd need about $86,253 in San Antonio to keep the same standard of living.