Like many people, I’ve been inclined to explain Virginia’s decades of explosive population growth in terms of migration and the Federal government’s expansion in Northern Virginia. While that’s certainly part of the equation, “natural increase” has actually driven most of the growth, just as it has across the country. Natural increase simply means more people are born than die in a year. Even in Northern Virginia and Hampton Roads, natural increase is the largest generator of population growth. But “natural increase” does not mean that we are having lots and lots of babies. In fact, it has much more to do with the fact that we had a lot of babies a while back and since then people started living a lot longer.
You hear, on this blog and elsewhere, about the “aging population,” but I wanted to show exactly what that means. Here’s the one gif you need to see to understand population growth in Virginia: