@Dominions Son
1. What do you call a small town. To me it's a population in hundreds, not thousands.
2. The OP's specification, wasn't just small town, it was small poor town. To me that says not only population in the hundreds, but a median income barely above or below the poverty line.
I'm not specific about the size of the town or how poor it is. I leave that to the imagination of the reader. I introduce the town as:
Another change in the speed limit had him travelling down Main Street at thirty-five miles per hour. Cactus Point wasn't much of a town. Buildings needed painting and Main Street lacked the arts and craft shops many small towns in Arizona had. No one would confuse Cactus Point for a tourist stop.
And shortly after:
Too small to have its own police, Cactus Point relied on the county sheriff's deputiesβand the local mechanic, Buck Ka-e-te-nay. The sheriff didn't have enough deputies to police the small town so, with the approval of Cactus Point's mayor, made Buck a volunteer deputy.
And then later I mention from the POV of a woman driving to the U.S. from Mexico:
The same would be true on the United States side. She had driven it often and it was always the same. All the cars would go one way and she'd go the other way to Cactus Point. At least Cactus Point had the mine, not that it produced much ore anymore.