That area has been reported in the Houston Chronicle to have some higher crime rates, but zip codes are fairly large areas and each community is different. Like other post here, you need to check with the Houston Police Departments web site as Realtors do not keep that data.
Now this area is very close to the Energy Corridor with some of the cities largest employers having big offices in this area. Also the expansion of Interstate 10, the adding of the Westpark Toll road make it easy to get around in addition to large nature reserves within a 5 min drive. All good reasons that people might rent your property in the future.
Key is buying at a good price and holding it for a period of time. When selling, you pick when the market is up. I would try to purchase something that had a min 1 car garage and a owner occupancy level over 60%.