You might want to ask the owner (when you place an offer) to provide a CLUE report. That will have any claim history on the property.
You can also do a preliminary search at
Perhaps you don't need to be in a flood zone to get flooded. That's why a CLUE report could help.
If you don't have a REALTOR yet I would like to invite your to review my profile. Feel free to contact me if you feel I could be a fit on your needs. I will happy to go over your goals. By the way I am a 77433 resident too and I have flood coverage even if I am not in a flood area. You just never know.