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.
Census Tract 960404 Block Groups. *A census tract is a geographic area defined by the United States Census Bureau and used for the census. A census tract normally covers a smaller area than a city or zip code. On average, a census tract has around 4,200 residents. Census tracts are more uniformly distributed in terms of the number of residents than cities or zip codes. Also, the census tract demographic data is nearly 100% complete vs. less than 70% coverage of demographic data for cities and zip codes.