If you decide to try to live in a more rural area, when you look for an agent, look for one that is from a small town and/or is accustomed to showing non-suburban houses.
We had an agent recommended to us when we moved here and she was just awful. She didn't understand that we would rather live in a shack in the country than be stuck in a move-in ready house in a neighborhood where we were restricted on everything. All she wanted to do was show us houses that we couldn't afford and wouldn't want to live in anyway. When we insisted that she put a bid down on a house in the country (fixer-upper) she literally dumped us as clients because she didn't want us to buy the house - kept saying we would hate it and blame her. Fortunately a nice realtor from one of the small towns near the property understood us better and was more than happy to help us get country property and all the info for the area that we needed.
Most Texas appraisal districts are online also, so you can check out property taxes for houses you might be interested in.