The city's growth has also brought air quality problems and an increase in violent crime.
The city also has a higher rate of violent crime than the national average.
The West led the increase in violent crime, up 4.7 percent.
Despite the recent changes, violent crime still remains a problem in the area.
And violent crime is up this year by 14.5 percent through May.
What are you going to do about drugs and violent crime?
But in the nation as a whole, violent crime fell just 6.5 percent from 1990 through 1995.
In 2009 the community had a large amount of violent crime.
Violent crime increased last year for the first time in four years, up 2.5 percent from 2004.
A third of the largest schools, those with 1,000 students or more, had at least one serious violent crime.
