- #US ZIP CODE SHAPEFILE ZIP FILE#
- #US ZIP CODE SHAPEFILE SOFTWARE#
- #US ZIP CODE SHAPEFILE CODE#
- #US ZIP CODE SHAPEFILE PLUS#
Choose ‘Graduated’ from the pull down menu at the top of the window. In the csv file this is the field Id2 and in the shapefiles this is the field GEOID. We will be joining the data and the shapefiles through the same geoid in each file.
#US ZIP CODE SHAPEFILE PLUS#
Press the green plus button at the bottom of the window. Your window should now have two new items in the Layers section in the bottom right corner. We will now join the shapefiles and the data.ĭouble click on the Tract layer. Make sure you select ‘No geometry (attributes only table)’ Now go to Layer > Add Layer > Layer from Delimited File. Open QGIS. In the top toolbar, go to Layer > Add Layer > Vector File and ‘Browse’. You can make a csvt file by using a text editor and saving as a csvt. This will let QGIS do calculations on numerical data. Step 3.1: Before combining the files, you need to create a csvt file in the same directory as your csv file with the types of data in your csv file. Step 3: Combining the data and Shapefiles (the actual mapping part!) The codes for different states can be found here. I have found that the Web Interface feature sometimes does not work. There are two ways to download the shapefiles. The United States keep a collection of shapefiles called TIGER/Line Shapefiles which correspond to the geographic divisions of the Census data. The shapefile is a popular vector format for storing the shape, location, and attributes of geographic features.
#US ZIP CODE SHAPEFILE ZIP FILE#
Extract the zip file and use the csv file XXX_with_ann.csv Choosing ‘Modify Table’ will allow the data to be filtered.Ĭhoose ‘Download’ and use the preset options. Since we are only mapping one table, it will be best to modify this table first before downloading the data. The search tool should show a table like above. The files used in this tutorial: CSV | Shapefiles Step 1: Retrieving the data
#US ZIP CODE SHAPEFILE SOFTWARE#
QGIS is an open source mapping software that can be downloaded here. This tutorial will create a heat map of educational attainment in Indiana at the census tract level using the 2010-2014 ACS Survey Estimates. Data can be filtered by topic or geography. The best way to search for data is to use the Advanced Search tool at American FactFinder. The data is accessible through American FactFinder and is grouped into different categories. The ZCTA boundaries in this release are those delineated following the 2010 Census.Many different types of information is available in the census data.
#US ZIP CODE SHAPEFILE CODE#
Some ZIP Codes may not have a matching ZCTAīecause too few addresses were associated with the specific ZIP Code or the ZIP Code was not the most frequently occurring ZIP Code within any of the
Uses the most frequently occurring ZIP Code to assign blocks, a ZCTA may not exist for every USPS ZIP Code. These codes may contain leading zeros.īlocks that do not contain addresses but are surrounded by a single ZCTA (enclaves) are assigned to the surrounding ZCTA. The most frequently occurring ZIP Code also becomes the five-digit numeric code of the Occurring ZIP Code for the addresses contained within that block. Tabulation blocks are assigned to a ZCTA based on the most frequently The Census Bureau uses tabulation blocks as the basis for defining each ZCTA. The USPS makes periodic changes to ZIP Codes to support more efficient Should not use ZCTAs to identify the official USPS ZIP Code for mail delivery. Virgin Islands once each decade following the decennial census. Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. The Census Bureau delineates ZCTA boundaries for the United States, Puerto Rico, American
Postal Service (USPS) ZIP Code service areas that the Census BureauĬreates to present statistical data for each decennial census. ZIP Code Tabulation Areas (ZCTAs) are approximate area representations of U.S.
Set, or they can be combined to cover the entire nation. The MTDB representsĪ seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the