According to a recent Washington Post Article (Citation) the number of anti-Muslim hate crimes is still 5x higher than before 9/11.
In pre-9/11 America, hate crimes against the Islamic community were low; from 1996 to 2000 there was an average of 27 hate crime incidents against Muslims per year (less than 2% of all religion-motivated incidents in this time period). In the wake of September 11, the number of hate crime incidents soared to 481 reported incidents in 2001, and has since stayed high, with an average of 158 reported incidents per year (between 2002-2013).
Although hate crimes against Muslims have dramatically increased since 2001, the number of incidents has stayed between 124 and 192 per year from 2002 to 2013 (based on US Bureau of Statistics Uniform Crime Reports). Put simply, anti-Islamic hate crimes are more common now than before 9/11, however since 2002 the number of reported incidents has stayed stable.
Unfortunately, hate crimes against peoples of other traditions are very common too. In 2012, for example, 696 (59.7% of religion-motivated) hate crime incidents were committed against the Jewish community. On top of that, there were over 3000 racially-biased hate crime incidents, over 1000 sexual-orientation-bias incidents, more than 800 incidents based on ethnicity/national origin bias and about 100 incidents committed through disability bias.
Note: many incidents go unreported due to fear of retaliation, cultural/linguistic differences, a lack of familiarity with laws and agencies, and immigration status. The US Bureau of Justice Statistics claim that the amount of hate crimes reported to police have declined from 46% (2003-06) to 35% (2007-11) with one of the main reasons cited as a belief that the ‘police could not or would not help’ (between 2007-11).
If you have been the victim of a hate crime, please report the incident to your District Attorney’s Office or your local police department’s victim services unit.
 U.S Department of Justice, (2015), Uniform Crime Reports; Hate Crime Statistics, (1996,1997, 1998, 1999, 2000, 2001, 2002, 2003 (pdf), 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 (Addendum), 2013), [Access Tables],
Available at: http://www.fbi.gov/about-us/cjis/ucr/ucr-publications#Hate [Accessed: 2015.02.11]
 Langton, L., Planty, M., Sandholtz, N. (2013). Hate Crime Victimization, 2003-2011. NCJ241291. [online]. US Department of Justice. p5-6.
Available at: http://www.bjs.gov/content/pub/pdf/hcv0311.pdf [Accessed: 2015.02.13]