Like many cities, Mobile, Ala., didn't even know how many blighted properties it had. Instagram offered a cheap and simple way to start figuring that out.
In many urban centers, families are finding themselves priced out of the market for housing large enough to accommodate them. Some cities are trying to fix the problem, but it’s not easy.
The percent of American households with children has slowly declined over the past decade.
Most incumbents won re-election, while several cities elected their first female or openly gay mayors.