Enhanced Violent Crime Community Policing Act of 2011 - Amends the Omnibus Crime Control and Safe Streets Act of 1968 to: (1) allow the use of public safety and community policing grants to hire and train new career law enforcement officers for deployment in communities with high incidences of violent crime; (2) direct the Attorney General to make grants to local governments to hire and train new career law enforcement officers for deployment in high crime areas to enhance community policing in such areas; and (3) authorize the Attorney General to give preference to grant applications for the hiring and training of new career law enforcement officers for deployment in high crime areas. Specifies that grant amounts shall provide for a 5% to 10% increase in the size of a grantee's sworn police force.