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ZIP + 4 Centroid/Census to Block Group Geographic Conversion File
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SKU: EA-ZIP
EASI maintains information that relates each residential ZIP+4 to its appropriate Block Group. EASI also identifies the longitude and latitude for the ZIP+4’s. This annual updates is a key component in the EASI update methodology.
This file can be used by direct mailers and others who need to summarize their ZIP+4 information into standard Census geography such as Block Groups or Census Tracts. It can also be used to display on a map of a ZIP+4 analysis.
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ZIP + 4 Centroid/Census to Block Group Geographic Conversion File
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Product Details
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EASI maintains information that relates each residential ZIP+4 to its appropriate Block Group. EASI also identifies the longitude and latitude for the ZIP+4's. This annual updates is a key component in the EASI update methodology. This file can be used by direct mailers and others who need to summarize their ZIP+4 information into standard Census geography such as Block Groups or Census Tracts. It can also be used to display on a map of a ZIP+4 analysis. The record layout is: Position | Name | 1 - 5 | ZIP Code | 6 - 9 | Plus 4 | 10 - 13 | Carrier Route | 14 - 15 | State Alpha | 16 - 20 | County FIPS Code | 21 - 33 | Block Group Code (XXXXXXXXXX.XXX) | 34 - 45 | Census Tract Code (XXXXXXXXXX.XX) | 46 - 55 | Latitude | 56 - 66 | Longitude (First position is minus sign) | 67 - 69 | Match Code (ID's how good a match 100 is the best, to 4, etc.) | 70 - 74 | Average Mailable Households |
The above files are for residential ZIP+4s only; the business-to-business ZIP Codes without population (population is 0) are not included in this file (call for more information). These database files are zipped into 1 file with all the ZIP +4's.
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