In the United States, a colonia is a type of unincorporated, low-income, slum area located along the Mexico–United States border region that emerged with the advent of informal housing. These colonias consist of peri-urban subdivisions of substandard housing lacking in basic services such as potable water, electricity, paved roads, proper drainage, and waste management. Often situated in geographically inferior locations, such as former agricultural floodplains, colonias suffer from associated issues like flooding. Furthermore, urbanization practices have amplified the issues, such as when developers strip topsoil from the ground in order to subdivide land, the resulting plains become breeding grounds for mosquitoes and disease. Traditional homeownership financing methods are rare amongst colonias residents, and therefore these areas consist of ramshackle housing units built incrementally with found material on expanses of undeveloped land. Colonias have a predominant Latino population where 85 percent of those Latinos under the age of 18 are United States citizens. The U.S. has viewed border communities as a place of lawlessness, poverty, backwardness, and ethnic difference.