Some of the best sources for statistical information (and sometimes a bit of history) by neighborhood:
Neighborhoods in Charlotte - Spec Coll HC107 N82 M46 1976
Housing Quality in Charlotte - Local Docs HD7304 C37 U64 1990
City within a City Neighborhood Assessment - Local Docs HA730 C44 C58 1993
City within a City Quality of Life Index - Local Docs HA730 C44 C583 1997
Charlotte Neighborhood Quality of Life Study- published by UNC Charlotte's Urban Institute/Metropolitan Studies Group every other year starting with 2002 through 2010 - Local Docs HA730 C44 C518. The most recent Neighborhood Quality of Life Study is an interactive website accessible from the Urban Institute's webpage.
Charlotte-Mecklenburg quality of life indicators - Local Docs HN79 N82 M39 1993
Social indicators report - Local Docs HN79 N82 M42 1982
Some of these will also be available electronically. The library catalog records should give you that information.