Based on 2022 Argentine Census (INDEC) metropolitan/urban agglomeration figures:
Ratio: ~8.6:1 — not 2:1. The source's "3M vs 1.5M" likely used outdated or city-proper (not metro) numbers.
| Measure | Buenos Aires | Córdoba |
|---|---|---|
| City proper (CABA / Córdoba Capital) | 3.1M | 1.4M |
| Metro / Urban Agglomeration | 15.5M | 1.8M |
The source's "3M vs 1.5M" matches city-proper populations (approx), giving a ~2:1 ratio. But for meaningful comparison, metro areas are standard — yielding ~8.6:1.
So: City-proper ratio ≈ 2:1; Metro ratio ≈ 8.6:1. Always specify which boundary.