There are hogs all over the country, where are you thinking.
Most would never think it, but a self-guided hog hunt on the Tejon Ranch here in Southern California is about the prettiest place on earth that those little boogers call home.
300,000AC of free range elk, deer, turkeys, lions, bobcats, yotes, and of course hogs.
The ranch is about 90 mins north of LA. A truly special place I try and hunt at least twice a year. The license and tag are about $200 total, and depending on whether you can get in on their unguided archery hunts or not, the cost would be about $500-$650 for license, tag, and the "trespass fee".
I have hunted pigs all over the south and Texas, and the scenery and adventure of being basically on your own there is impossible to rival.
My dad has a big lease in Georgia with hogs on it, and is still ticked off that his and my schedule won't let him come here and hunt there this year.
www.hunttejon.com look at their wild pig management hunts and see if your schedule fits with it. I'll gladly tell you all I know and maybe be there that weekend to help get you and your kid on the pigs, and into an adventure you will come back to every year.