Ongata Rongai, Kenya

Rapid urbanization has turned this former Maasai hamlet into a crowded, fast-growing Nairobi suburb of around 172,590 people. The education sector has been hit hard by the government's land grabs for affordable housing, disappointing locals. And with Ongata Rongai lying along wildlife corridors, human-animal conflicts are an ever-present concern, including occasional lion sightings in residential areas. Overall, this is a congested, under-serviced community that may appeal to those willing to tolerate the bureaucratic headaches and safety risks in exchange for proximity to Kenya's capital.