Job location plays a significant role in determining the salary of diploma holders in aeronautical engineering. Positions in metro areas or cities with developed aviation hubs, like Bengaluru, Hyderabad, or Mumbai, typically offer higher salaries due to higher living costs and the presence of large aerospace companies. Conversely, positions in smaller towns or remote areas may offer lower salaries but can provide other benefits like lower living costs and more accessible opportunities for local employment. Candidates should consider location-based salary variations when choosing job opportunities.