Table 1 |
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A Summary of Census ZCTA Characteristics |
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| 1. |
ZCTAs are linked to Census blocks and every tabulation block has a single ZCTA code |
| 2. |
ZCTAs cover all tabulation blocks in the United States and Puerto Rico |
| 3. |
ZCTAs may consist of two or more discontiguous areas |
| 4. |
A ZCTA code represents a five digit ZIP code where possible |
| 5. |
In large undeveloped areas where there are no master address file (MAF) addresses
with five-digit ZIP codes, the ZCTA code assigned is based on the three-digit ZIP
code (e.g. XX for tracts of undeveloped land and HH for water features) |
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Grubesic and Matisziw International Journal of Health Geographics 2006 5:58 doi:10.1186/1476-072X-5-58 |
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