Then usable tread depth is compared to remaining tread depth in order to calculate tread wear percentages. For example, a tire that started with 10/32 of original tread depth and has worn off 4/32 (down to 6/32 of remaining tread depth) is 50% worn.
1 If you know the census tract number: Use the IRS list of 2014 Qualified Census Tracts by county. 2  If you have a street address: Visit HUD's interactive QCT Map and enter the property address to view what Census Tract the property is located.
A Census-designated place (CDP) is a categorization used by the United States Census for the purpose of collecting and tabulating data. Census-designated places are locally recognized communities with population clusters which lack legal status such as incorporation within the states where they are located.here are no firm population thresholds for a CDP; generally, they have populations of around 3,500. Several characteristics differentiate a Census-designated place from other âplacesâ or centers of population. The first is the lack of incorporation.