I live just south of Birmingham.
You should be able to click on the Hummingbird website look up the chart that will cover your state and then it will give you a list of the lakes that are included with that particular chip. I live in Alabama so the south eastern section is what I use and it has hundreds of lakes down here.
I have both Lakemaster and the Navionicxs but I prefer the Lakemaster. I can see the detail much better and I like the way I can change the colors.