Just FYI, but the further northeast you go from Houston, the cheaper land and houses are. Do you want to live in a town or a mid-size city, or a place in the country?
I live outside Mexia, (30 miles west of I-45, south of Dallas, north of Huntsville) and the amount of house and land you can get for under $200K is astonishing.
There was a house up the road from me, in town, sound but needed cosmetic upgrades, a 3/2 if I recall, with a fenced yard and fenced, 15-acre pasture including a wet-weather creek, for sale. Asking price? $65K!!!! Oh, and it sat there for awhile before somebody bought it.
If you want a real spread, you can get a dozen to 20 acres and an OK house for under $100K in deep northeast Texas (toward Texarkana), but it would be quite a haul to the big city from there.
Good luck with your hunt!