February 10, 2019


Census Public Use Microdata Area (PUMA) Reference Maps – Illinois. The total number of map sheets is listed next to each entity name. The version of Public Use Microdata Areas (PUMAs) is the lowest level of PUMA can be downloaded from the Census Bureau’s Reference Map. The version of Public Use Microdata Areas (PUMAs) is the lowest level of geography identified in the census 5% sample and the For example, in the 3-year ACS sample, PUMA codes are reported for State, PUMA and Super-PUMA Maps, Detailed contents of PUMAs and super-PUMAs.

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As mentioned, they were first used in ACS summary data products starting with vintage released in calendar year United States Census Bureau geography. The last column, county to puma12 alloc factor, is the allocation factor going the other way. Notice that there are missing values in Column L for all counties of populations of less than 65, Export it as a csv database file.

Typically, larger measured in land area and more rural PUMAs have codes that end with “00”. This will not make a very nice thematic map, although it would allow one to publish annual characteristics. These are just the lines adea the report dealing with the first five values of the source geocode, which is called puma12 in Geocorr.

2000 PUMAs and Super-PUMAs

Our purpose here is to describe these entities and refer you to resources that will help you to understand and use them. Starting withthey can only comprise congiguous counties or census tracts.


If you click on the listing report format link you should see a report, the first few lines of which should look like this: This example shows us how to relate the PUMA areas to counties. For help, here is the input file used in this example. The dataset also contains a set of key indicator variables from a recent set of ACS summary data. They are similar to census tracts in this regard.

In fact, as you scan the lines of the report, you can see there are a dozen counties listed that have a value of 1. So PUMAs now have names. Because they are required to have a minimum population of , all PUMA areas exceed the 65, population threshold, thus insuring that there will be single-year ACS data for them published each year.

Creating County-Level Statistics from Public Use Microdata Areas (PUMAS)

It provides information regarding the PUMA’s location by indicating intersections with other more familiar geographies. There have been some very noteable changes.

In your browser a page will be generated summarizing the results and providing hyperlinks to the two output Files. PUMAs may not cross state boundaries. A reference information section provides general links to various related documents and sites.

See more detailed discussion, below. PUMAs are assigned 5-digit codes that are micdodata within state. PUMAs were first created for the Census. They are the only sub-state geographic identifiers on the PUMS records.

From the Select one or more target geographies: The differences are not just in the specific geographic boundaries, but in the guidelines used to create them as well. And, urban areas with multi-PUMA counties show up as dark blobs.

Block Block group Tract. In the data files, if a record is based on a survey conducted in or then the variable puma00 is defined, and puma10 has a value of ; otherwise survey taken in you get a value of for puma00 and a useful value for puma Congressional district County list Alaska census area Independent city Municipio Place Census-designated Public use microdata area School district lists State legislative district Urban growth area.


Starting withthe local agencies that participated in the PUMA boundary suggestion program were asked to provide suggested names for these areas.

All About Public Use Microdata Areas (PUMAs)

And in a bit over 5 percent of the time, counties and PUMAs share exactly the same definition – at least based on the current definitions. The SAS data set version is accessible using our Dexter utility access corrlst. Urban areas get their own separate inset maps.

There is no way to show that detail on a US-based map. PUMAs allow the Census to publish census data for sub-state areas throughout every state. To help you see what these data look like we generated a nicely formatted listing of the Missouri subset of this data set. Likewise, the percent of ACS questionnaires that were returned by mail is only available from the microdata files.


Each PUMA contains at leastpeople. For background of the details of California, see the spreadsheet or map that shows the sizes of California counties, based on Census Estimates.

Download a table from American Factfinder. To do this, invoke the application and fill out the form as follows: