Which of the following states does NOT border Mexico?

The state that does not border Mexico is Nevada. The borders of Nevada are adjacent to other states, such as California, Oregon, Idaho, Utah, and Arizona, but it does not share a boundary with Mexico. In contrast, Texas, Arizona, and California all have significant borders with Mexico. Texas has the longest border with Mexico of any state, Arizona shares a border in the southeast, and California has a short border in the southern part of the state. Understanding the geographic relationships between these states and Mexico clarifies why Nevada is the correct answer in this context.