You have a 12% chance of meeting a true St. Louisian in this metropolitan area.
St. Louisians account for 354,361 of the total 2,871,421 citizens of the metropolitan area.
For what it's worth, I feel a general bond with my fellow St. Louisans. In very general terms, I feel like we're all on the same team, aware of the same pluses and minuses that the city has to offer. It doesn't matter which of the 79 neighborhoods of the city you live in, you are a St. Louisian and I can get behind that.