I popped into this thread partially because I found the question interesting, and partially (perhaps mostly) to hop onto Google, find the demonym for residents of Monte Carlo, and smugly point it out.
Imagine my chagrin at being unable to find any such demonym! There’s certainly Monegasque for Monaco residents, but I couldn’t find one specific to Monte Carlo. So, having been brought low by my own hubris (while simultaneously being hoisted high onto my own petard?), I’m curious–is there any such Monte Carlo-specific demonym? (Pardon the hijack, but the initial question seems well answered.)