Jess,
Even though you don't like these kingsnakes, they are very beneficial. They help keep the rodent/vermin population in check in your area, thus doing their ecological niche duties.
To discourage encounters, keep the grass mowed and trimmed, and flower beds weeded in the areas you frequent. Don't leave piles of lumber, kids toys or scraps of building material lying about, since these are favorite hiding places for snakes.
My brother had a large black rat snake in his yard in TN. This girl's favorite basking spot was on the split rail fence in front of the house, right next to the gate. His wife, who is deathly afraid of snakes, was very diligent about "snake-proofing" the yard, to no avail. She swore that she could SMELL that ratsnake the minute she stepped outdoors. If it was sunning, she would climb over the fence at a different spot. His wife hated the thought of mice in the house worse than the snake.
However, this mama black rat snake decided to deposit her eggs in a hole at the base of a post. This was more than my sister-in-law could handle, so I ended up relocating the mama snake, and hatching the eggs myself. All lived happily in my yard, the moles disappeared, and my sister-in-law bought a cat to deal with her increased field mouse problem.
If you leave the snakes alone, they will avoid you as well, and provide more service than heartache. Just my opinion.
regards,
althea