Here is a home in Texas my mother in law is selling, has a house with septic, and well water, as well as a small cabin they were working making a guest house that hasn't been finished yet. She has been growing crops in several spots until this year. If you add solar panels it would be completely off grid.
https://www.zillow.com/homedetails/45-County-Road-2360-Marietta-TX-75566/87214184_zpid/
https://www.zillow.com/homedetails/45-County-Road-2360-Marietta-TX-75566/87214184_zpid/