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 type of place (a concentration of population) identified by the United States Census Bureau for statistical purposes.CDPs are delineated for each decennial census as the statistical counterparts of incorporated places such as cities, towns and villages. census-designated place (CDP) is a type of place (a concentration of population) identified by the United States Census Bureau for statistical purposes.