Apparently SF has even added 50% more people than Jacksonville since the 2010 Census, and considering it's basically the first time the city has allowed significant new construction in decades I believe it.
Actually, when you look at all the major cities in the top 30 or 40, Indy and Jax adding 14,000 apiece are ahead of only Detroit, Baltimore, Memphis, Louisville, Milwaukee, and a few other obvious suspects. Cities half of Jax's population apparently still added more people. Yikes. Considering that the weather and cost of living in Jax are the same as in SJC and there is still abundant land (basically more land to grow than any other city on that list), this is potentially an eye opening problem.