ZCTA boundaries are fixed for the intercensal period 2010 through 2020. These were introduced with the Census 2000 and continued with the 2010 Census and 5 year American Community Survey data sets. The Census Bureau uses tabulation blocks as the basis for defining each ZCTA. each individual cutter. ZCTA boundaries are fixed for the intercensal period 2010 through 2020. The three-digit ZCTA code and an "XX" suffix are applied to a large land area (generally larger than 25 square miles) where we had insufficient information to determine the five-digit codes. SF30001.LOGRECNO = SF30006.LOGRECNO Linking the USPS's ZIP codes to US counties is tedious: ZIP codes do not resemble spatial entities; they are created for delivering mails. It is possible to use area-weighted methods to apportion statistics from ZCTAs to ZIP code areas. zip.demog1$diff.pcthispanic <- with(zip.demog1, pct.hispanic - zip.pct.hispanic) The following set of 3 images demonstrates this. Box and large volume customer ZIP Codes may not correspond to residence location of census population using that ZIP Code- use with caution! mdb <- odbcConnectAccess("zip_zcta.mdb") The USPS ZIP Codes identify the individual post office or metropolitan area delivery station associated with mailing addresses. Now evaluate results. Draw your attention to ZIP 98166 (Figure 1) & ZCTA 98116 (Figure 2) at the northwest corner of the map. ZCTAs are geographic areas defined as sets of Census 2010 census blocks closely resembling USPS ZIP codes (lines, not areas). About ZIP Codes. dat.zcta$zip.totalincome <- with(dat.zcta, medhhinc * zip.numhh), # now sum each proportionalized variable per ZIP This file links Ztca regions — the Census version of ZIP codes, to counties, by associating a Zcta with the county that contains the Zctas centroid. ZCTA (2000) ZIP Code (GDT 2000) Number of Polygons 2,450 1,599. P.O. Below is the crosswalk that is currently being used for data from the 2019 UDS report, patients by ZIP Code table to convert those ZIP Codes to ZCTAs. A key feature of these data is that the same set of subject matter are also tabulated for wide-ranging smaller … ZCTA - ZIP Code Tabulation Areas. This dataset contains model-based ZIP Code tabulation Areas (ZCTA) level estimates for the PLACES project 2020 release in GIS-friendly format. Below is the crosswalk that is currently being used for data from the 2019 UDS report, patients by ZIP Code table to convert those ZIP Codes to ZCTAs. mdb <- odbcConnectAccess("SF3_zcta.mdb") The reason that there is not one ZCTA for every ZIP Code is that only populated areas are included in the Census data, and thus ZIP Codes that only serve PO Boxes have no corresponding ZCTA. We do not have demographic data for ZIP code areas. Say census block A is all ZIP code 99001 so their ZCTA is also 99001, and census block B is mostly ZIP code 99002 with a little 99001 so their ZCTA is 99002. For example, ZCTA code "290XX" will represent the generic 3-digit ZIP Code290 where no 5-digit ZIP Code was available. Copyright 2020 by the American Academy of Family Physicians. Topological Disruption: Shown is ZIP code area 13308 and its companion 13308 ZCTA for Blossvale, NY. zip.demog1$diff.population <- with(zip.demog1, population - zip.population), # a plot of recalculated (ZIP) vs original (ZCTA) values Not all Zip Codes have corresponding ZCTA's. ORDER BY SF3GEO.ZCTA5; # handle proportions of The three-digit ZCTA code and an "XX" suffix are applied to a large land area (generally larger than 25 square miles) where we had insufficient information to determine the five-digit codes.
zcta to zip code 2021