HUD has STILL not posted the NSP data in any useful form, unless you like to pick census tracts off of a map.
HERE is the latest from HUDUSER on the status of the data (and data obviously exists, 'cause that is what the maps are based upon):
"Watch this space for further developments! This NSP Mapping tool currently only allows users to explore the information. Enhanced capacity will include:
- Data download capacity
- Ability to create user accounts and save geographic configurations
- Ability to submit threshold information to HUD and receive an application number"
C'mon, get it together, HUD homies.