Texas.
texas
Texas
Texas.
The answer is not California. For California is not in the southwest. The answer is Texas. The southwest states are Arizona (I live there), New Mexico, Oklahoma, and of course, Texas.
Texas
Portland is the largest city in Maine and is about 50 miles southwest of Augusta, the capital.
Bridgeport is not only the largest city in southwest Connecticut, it is the largest in the whole state.
Cape Leeuwin is in the far southwest of Western Australia, Australia's largest state.
Cape Leeuwin is in the far southwest of Western Australia, Australia's largest state.
The largest (and only-est) Jewish state in history was (and still is) Israel. Israel is located in Southwest Asia, bordering Africa.
We have left all of the manufacturing to developing countries such as China and India. Arizona still has some manufacturing, therefore by default it is probably the largest manufacturing state in the southwest United States.