City of Winnipeg Neighbourhood Characterization Areas (NCAs)
Follow the link below. Click on the neighbourhood cluster, and you can see maps of each individual NCA, including major street boundaries.
http://winnipeg.ca/census/2006/
These are custom geographies designed by the City of Winnipeg for planning purposes. They are slightly smaller than Census Tracts and are meant to better reflect 'natural' city neighbourhoods.
Here is an alphabetical list of all NCAs:
http://winnipeg.ca/census/2006/Alpha/