As of 2025, San Antonio is the seventh largest city in the United States.

However, given the current atmosphere, it is quite interesting to see whether it will rise to sixth place or fall to eighth.

The city currently in sixth place is Philadelphia, and the difference is only about 50,000 people. In contrast, there is a gap of more than 120,000 people with the eighth place city, San Diego. San Diego is currently experiencing a population outflow due to high rental costs, so just looking at the numbers, it seems that San Antonio has a slightly higher chance of rising than falling.

San Antonio has been continuously increasing its population over the past few years. It is one of the fastest-growing cities in Texas, and housing costs are relatively affordable compared to other major cities, leading to a steady influx of young people and families.

Moreover, as large corporations move south to avoid the skyrocketing land prices and rents in Austin, job opportunities in San Antonio are also increasing, significantly contributing to population growth. The development of new towns on the outskirts of the city is also active, rapidly increasing the demand for suburban housing.

In contrast, Philadelphia is experiencing a declining population trend. While it still has climate and cultural attractions, the structural limitations of an old city are evident. Issues such as public safety and high tax burdens are significant, and there is a strong tendency for young people to move to the southern regions for jobs.

If this trend continues, there is a good chance that San Antonio will surpass Philadelphia and rise to sixth place. Current trends suggest that this could happen within 2 to 3 years.

Of course, the ranking of cities is not determined solely by population numbers. Economic conditions, job structures, immigration influx, and the city's attractiveness all play a complex role. For San Antonio to maintain its growth, it must also address issues such as transportation, public safety, education, and infrastructure. Simply increasing the population can lead to urban fatigue.

On the San Diego side, the high cost of living and housing prices in California limit external influx, and many people are moving out of state. Therefore, the possibility of San Antonio falling to eighth place seems almost nonexistent at this point.

Ultimately, in the next few years, San Antonio is likely to rise to the sixth largest city in the United States.

If the current growth trend continues and Philadelphia's decline persists, the change in ranking will be a matter of time. This city is still expanding, and the unique energy and practical appeal of Texas are driving this momentum.

It seems that the saying that the center of the United States is gradually moving south is not without merit.