We call it pop where I live. I had a friend in college who grew up in Missouri and called it soda.

There used to be a local place in Twin Falls, ID, that bottled their own. They were called The Popp Shopp. They had orange, grape, cola, lemon-lime and root beer. The drinks came in 12 ounce glass bottles, and you would take the empties back for a credit on the next case of 12. They closed in the mid 80's, when I wasn in high school.