Aside from trapping and destroying them, or killing them outright, I don't think there is a certain way to keep them away. If you have a whole family there, then there is likely some reason why they have stayed around. That means that even if those visitors "disappear", whatever is so attractive around your place will most certainly attract replacements.
The best thing you can do for your flock is to make it as predator proof as possible around their coop and run. Don't rely on chicken wire - it's nowhere near substantial enough to protect your chickens. It would take those pesky raccoons less time to help themselves to a chicken dinner than it took you to unroll the wire. You didn't say whether you plan to have an outdoor run with your coop, but a solid welde wire fence or cyclone fencing reinforced with hardware cloth both running up the sides and then either buried in a 12 inch trench all the way around or formed into a protective apron would be a good start. You'll need solid, substantial walls for your coop, no entry points, and secure latches, preferably that lock with twisting caribiners (and I'm sure I spelled that incorrectly) or something similar. They are quite nimble with those strong claws and will work as hard to get in as you'll need to work to keep them out.
Some folks say that those nite eyes work fine. But raccoons are smart - I would think that with a couple of nights of observation they will figure out quickly that it's just another man-made gizmo. End of deterrence. You will need strong, physical barriers, and that takes some work. I don't believe there is ever such a thing as a 100% predator proof set-up. The minute I become arrogant enough to think that I've defeated all predators with my clever little mind and my precautions, something is going to find a weak spot. I lose. So in addition to building as securely as possible, I add a good dose of common sense and diligence in checking for new weak spots or signs that something has been snooping around.
You are so wise to begin planning your housing now instead of either waiting until the last minute or waiting until your raccoons have already enjoyed a nice meal. Good luck!