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When you think of the Census Bureau, you might imagine filling out a census or survey form. Maybe you think of the billions of statistics and counts that are available. What you may not realize is that the Census Bureau is as much a geographic and cartographic agency as it is a statistical agency. We produce millions of maps to support our many censuses and surveys. Here are three ways these maps are vital to collecting the information we use to measure our people, places and economy and understanding the statistics we produce.
These maps contain all of the information a field worker needs to get to each house in their survey or census operation. They usually contain streets, rivers, a spot on the map representing each address, and census boundaries, such as census blocks.
We create these maps so you can see what our geographic boundaries look like or see the census geography where you are located. Real estate agents use these types of maps to see what census tract contains a particular house or business. Economic developers use these types of maps to see if their property is in an urban area. Your congressional representative uses these types of maps to see the area they represent.
Maps are a great way to present information visually because they can easily show information about our population. A table shows a list of numbers, such as the population density, but a thematic map visualizes the data, revealing spatial patterns, such as a concentration of people.
The Census Bureau produces maps to illustrate information following the release of decennial census counts and census survey statistics. We have also produced maps for major events, such as the Mississippi River flood in May 2011.
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