LEHD data from the Census is now updated on PolicyMap for 2014. Now including Massachusetts!
What are Zip Code Tabulation Areas?
PolicyMap now has Zip Code Tabulation Areas. They’re like regular Zip Codes, except made by the Census instead of the USPS.
Difficult to Develop Data: HUD Difficult to Develop Areas
Difficult to Develop Areas (DDAs) are used by LIHTC users in areas with high costs. This year, DDAs were particularly challenging to show on a map.
Tips on ZIPs – Part III: ZIP code Boundaries
Although ZIP codes were enumerated based on regional sorting facilities, geographic boundaries do not technically exist.