City comparison
Brookhaven, GA is about 850 miles (1,400 km) from San Marcos, TX 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 Brookhaven, GA to San Marcos, TX takes about 1 h 41 min, covering roughly 850 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 Marcos has a population of 67,143, vs 56,848 in Brookhaven — about 1.2× larger by population. By land area, San Marcos covers about 40 sq mi vs 12 sq mi for Brookhaven.
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 | Brookhaven | San Marcos | Difference |
|---|---|---|---|
| Median rent | $1,711/mo | $1,251/mo | 36.8% higher in Brookhaven |
| Median home value | $626,800 | $248,300 | 152.4% higher in Brookhaven |
| Median household income | $114,570 | $47,394 | 141.7% higher in Brookhaven |
| Groceries index | 100.3 | 94.2 | 6.4% higher in Brookhaven |
| Utilities index | 96.1 | 83.2 | 15.5% higher in Brookhaven |
| Transportation index | 97.0 | 96.6 | ≈ equal (Brookhaven slightly higher) |
| Healthcare index | 96.5 | 96.1 | ≈ equal (Brookhaven slightly higher) |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Brookhaven, you'd need $99,914 in San Marcos to maintain your standard of living.
Climate, safety, and demographics side by side.
Brookhaven and San Marcos have nearly identical overall cost-of-living indices. Housing costs are roughly 5% higher in San Marcos than in Brookhaven. If you earn $80,000 in Brookhaven, you'd need about $79,931 in San Marcos to keep the same standard of living.