States have been placed in the following. categories: Known- where states have either declared their programs or there is clear evidence of chemical or biological weapons possession. Probable- where states have been publicly named by government or military officials as probable chemical or biological weapons.
It is much more complicated than this, and hopefully you can see that the answer to your question is based on many variables. There are many ranches in Texas that are greater thn 50,000 acres, some as large as 250,000 acres, and a handful larger than that. A common sized ranch would be around 500 acres.
How much land is needed will be predicated on the goals of the individual alpaca farm. (See our Checklist for new Alpaca Owners) A five acre parcel can provide four acres of pasture, which will sustain 20-30 alpacas with proper pasture management. Keep in mind though, if these are breeding females the load on the pasture will be greater due to the production of cria.