Finding the second cities in tickets sales for NFL teams

Vivid Seats looked at ticket sales for NFL teams by location and found the place with the second-most ticket sales could vary:

Naperville represents the No. 2 most popular market for the fan base of a certain team from a certain town, known as Da Bears, according to ticket sales from Vivid Seats

It should come as no surprise that outside Green Bay, Milwaukee has the biggest fan base of Packers fans…

According to Vivid Seats, the second city with the highest overall percentage of ticket orders for its team was Colorado Springs, Colorado…

The Patriots’ fan base spans across New England, and Vivid Seats reports Quincy, Massachusetts, is the team’s second city. Providence, Rhode Island, isn’t far behind, and Nashua, New Hampshire, and Saco, Maine, are other hotbeds of Patriots fans…

For the Oakland Raiders, its No. 2 city is Sacramento, California, and Erie, Pennsylvania, comes in second to Pittsburgh for the Steelers.

A quick hypothesis: the distribution of ticket sales by NFL team is largely a function of the population of communities and distance from the home city of the team or the city where the team’s stadium is located.

These factors could be mediated by other influences. The relative wealth of communities could matter as NFL tickets are not cheap. The distance from the stadium may not be the best measure compared to access or time needed to get to the venue. Furthermore, the analysis suggests some fan bases draw from secondary cities in a region, like Providence for the Patriots or Sacramento for the Raiders.

With these factors at play, would the distribution of NFL ticket buyers largely reflect inequality across metropolitan regions or do ticket sales cut across racial, ethnic, and class divides?