Chiguayante, Chile

If you're considering a move to Chiguayante, brace yourself for a population of over 85,000 crammed into just 28 square miles. The city has seen a staggering 44% growth spurt in the past decade, straining local resources. Bureaucracy is a persistent headache, with the commune administered by a municipal council and directly-elected mayor. On the plus side, nearly all residents live in urban areas, providing access to amenities.

Overall, Chiguayante seems best suited for those seeking an affordable, high-density lifestyle in greater Concepción - though the breakneck pace of development may be a turnoff for some.