This is a list of some of the older, not still made but probably not hard to find, handheld scanners. And there's always a base model for the same radio if you wanted to get a base scanner and just listen at home.
Uniden:
BC296D handhel
BCD396XT handheld
The first one operates along the lines of older scanners where you have channels and banks. The second one has what's called a dynamic memory and it allows you to program in a lot more and you're not limited to just a certain number of channels for each bank. Both of them are discontinued but they usually can be found secondhand.
Uniden base models:
BC796D
BC996XT
If you were looking for something newer that is still being manufactured sold and is new/in stock, you might try something like the Uniden BCD325P2 for the handheld or the BCD996P2 for the base scanner. There are a lot of different models out there and there are other brands like Whistler also. I personally like the Uniden scanners much better and I think they're much more packed with smart ways of doing things and options on their radios. They are definitely more user-friendly in my opinion. Others may mention some other digital scanners that they like? But I do think most people prefer Uniden's radios.
If it's just going to be used in the surrounding area you mentioned, I would take a look at radioreference.com and look at the database to see what any counties you might be interested in monitoring have for frequencies. P25 is the digital protocol and a lot of counties do have both digital and analog still in use. The first scanners I mentioned, the older ones that are no longer manufactured, would be limited if you were to go somewhere different where they have more modern radio systems and current trunk radio systems. So if you plan on doing any traveling with it, you have to consider that also. In some areas, like where I live in the D/FW area, none of these radios would work good for me anymore since everything around here is becoming P25 Phase 2 TRS types of radio systems. And unfortunately that makes it where I have to spend a lot more money on the scanners I get just so that they'll be able to monitor the public safety traffic. I missed the good old days of not having to worry so much about the cost of a new radio
But it does look like, at least in Garza County, that a simple and older P25 scanner will do the trick for you.
I'm sure some more people will likely mention some radios they think would be good also. Good luck!
Brian
COMMSCAN