Missouri Census Data Center

Demographic Profile 3 ("dp3_2k") Usage Notes


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Overview

These reports represent the Missouri Census Data Center's attempt to distill the most frequently accessed data items from the 2000 decennial census. The reports are based entirely on data published by the U.S. Census Bureau as part of its Summary File 3 data tabulation. (This is the origin of the "3" in the report title.) As such, the data are based on the information collected on the census long form questionnaire. A companion set of reports based on Summary File 1 (the "dp1_2k" series) was also created by the MCDC. However, there is very little data in those reports that is not also available here. These reports are much longer than their dp1_2k counterparts, reflecting the much greater breadth of information collected on SF3 versus SF1 (long form questionnaire versus short form). We have organized the data items into 29 loosely-related subcategories, or tables. The order of the tables roughly parallels the order of the full SF3 tables upon which they are based.

Header Lines

These reports contain two header lines. The first is constant - "MCDC Demographic Profile 3, 2000 Census"; the second identifies the geographic area being summarized. It begins with the name of the area (if applicable) and then the standard geographic code used to identify the area is displayed. If available, a FIPS code will be used. Dashes are inserted between portions of these geocodes. For example, the geocode for a place will consist of the 2-digit FIPS state code, a dash, and then the 5-digit FIPS place code.

General Layout of Tables

We have employed a 2-panel ("newspaper column") format in an attempt to deliver more information with less scrolling. The numbered "tables" go down the left column (tables 1-15) and then continue at the top of the right panel. Despite our efforts to make this a very compact "just the highlights" report, users will note that they need to scroll down the equivalent of about 7 or 8 full screens to see all the data. This can be reduced somewhat by setting your browser's font size to a smaller value.

The lines of the table consist of Table Header lines identifying the subject matter and "universe" (i.e. the kind of entities being counted or measured). These are highlighted with a gray background. The first table header line is a hyperlink to the metadata where you can get more detailed information about the variables in that table. The detail lines of the table are divided into 4 columns. The Subject column identifies the data displayed on the line. Indentation is used to indicate subordinate data. For example, in Table 24, "Owner Occupied Units" is indented within "Occupied Housing Units". Typically, the first detail line in a table contains the total universe count and is displayed in bold. All items that count or measure the entire table universe are left justified and bolded.

The Number column contains the count or other measure (mean, median or occasionally a percentage). The Percent column will be filled in if and only if the item is a count. It is usually (but not always) a percentage of the next higher level count. Thus, in Table 16 (as shown here)

16. Employment Status
     Universe: Persons over 16
Over 16 Yrs of Age 1,242 80.2 P43
    Civilian Labor Force 897 72.2  
      Unemployed Persons 35 3.9  
      Civ. Labor Force, Female 425 47.4  
        Unemployed Females 28 6.6  
    Over 16 Not in Labor Force 343 27.6  
the Percent value in the "Civilian Labor Force" line is 72.2, which is 897 as a percent of 1242 (the count of persons over 16 on the previous line.) The next line, Unemployed Pesons, is indented within Civilian Labor Force. The Percent value there is 3.9, which is 35 as a percent of 897. Each time we indent another level the percentages use the previous level totals as the new denominator. The Percent figure on the first line of Table 16 (80.2 in the example) is, of course, based on using Total Population as the denominator. If this seems too confusing, you can also follow the links to the metadata (on the Table Header lines, or there is a link to the full report in pdf format at the bottom of the report) and it will show for each line of the report a column labeled "Universe Variable". If there is a Percent entry for that line then a value will be displayed in this column. It will be a value that will match a value shown in the "Variable Name" column of the report. For example, in Table 5 the row for Families (i.e. with "Families" appearing in the column labeled "Variable Name") the entry in the Universe Variable column is "TotHHs". This refers to the variable defined in the previous line of the report, Total Households. So the Percent entry in this line of the report represents the number of families as a percent of the total households.

The SF3 Table column is a link to the table(s) on the full Summary File 3 dataset that was/were used to derive the data shown for this line (and usually subsequent lines) of the dp3_2k table. In many cases the "parent table" is a single-item table which we just copied to create the extract variable. In these cases, we identify the table but we do not make it a hyperlink (why waste time and resources displaying a table that is exactly the same as what you already have?) In most cases the table number(s) are hyperlinks which you can click on to see a display of the complete source table.

Printing the Tables and the Panels Parm

These tables have been optimized for quick and relatively compact display in your browser. Hard copy printouts are possible, but not optimally formatted. If your browser supports a "shrink to fit" option you can use this to display the profiles in portrait orientation on standard letter size paper. (We can do this with the Firefox browser but we have not been able to do so with the IE 6.0 browser; the latter has a Shrink-to-fit option -- under Preferences /Effects, hidden under the "Print On" option as a sub-option -- but it does not seem to work.) If you are unable to use shrink-to-fit then you should specify landscape orientation to avoid having the right panel data truncated. With default settings using the IE browser it takes 7 landscape pages to display a profile. (It takes only 4 and looks much better using Firefox in portrait.) The page breaks do not honor table boundaries, so you need to arrange your printed pages to view complete tables on the printout.

Another alternative is to specify the panels parameter to have the tables display in single-panel (versus the default two-panel or "Newspaper Column") format. This format is more convenient for printing, though it will require more pages. To get single panel format append the parameter spec

&pa=1
to the end of the URL in the Address/Location box of your browser. (You can also code &panel=1 or &panels=1.)

Downloading the Data

At the bottom of the report you will see a row of hyerlinks to important related pages. The second of these is "Extract Data via Dexter". This refers to the MCDC's
Dexter web application for accessing our data collection. This hyperlink bypasses the usual explore-the-directory phase of accessing a dataset, and takes you directly to the dexter (data extraction utility application) first screen with the appropriate dataset already selected. The page includes a link to a Dexter Quick Start Guide, appropriate for first-time users, as well as to more detailed online help for usijg the application. You may need to specify a filter to avoid getting data for the entire dataset (this would typically involve coding a filter based on SumLev and/or State variables.) You will also have the opportunity to select variables, so you do not have to take the entire 417 variables (more or less -- it varies slightly with geographic level). In fact, if you are creating a csv file to load into Excel, you must limit the extraction to 256 variables or less since that is all Excel can handle. There is also a 65,xxx row limit in Excel, so you may have to code filters and break the data into subsets.

Related Applications

For most geographic levels there will also be a hyperlink at the bottom of the report labeled "Related Applications". This link will take you to our intermediate "applinks" application that will allow you to choose from a menu of other reports/applications available for the geographic area. For example, you will be able to link to the corresponding "dp1_2k" report (SF1-based profile) and a comparable report based on 1990 census data (for many, but not all geographic areas nationwide). Some of these applications will only be available for Missouri and/or Missouri, Illinois and Kansas.

More Detailed Data

There is a lot more data available from the 2000 decenial census and even from Summary File 3. It is way beyond the scope of this document to go into details -- a good place to start would be at the Census Bureau's
Census 2000 Gateway page. This will lead you to American Fact Finder, where you can get just about everything that is available. For more data from the Missouri Census Data Center you might want to check out the Readme file in our sf32000 data directory.

More Detailed SF3 Tables Using sf3tabgen

If you are not familiar with all the tables available on Summary File 3 see the Table Outlines chapter of the complete SF3 Technical Documentation.
Once you have found just what table(s) you are interested in, you can use our sf3tabgen utility application -- the one that we link to when you click on one of the "SF3 Table" links in this application. When you are browsing a displayed table by using one of those links, look at the URL displayed in the "Address" window. It will look something like this: ...&_service=sasapp&dataset=usplaces&tables=P43&logrecno=91337. This happens to be a link to display table P43 for Adair city, Iowa. What you should know is that you can display ANY table for Adair City (i.e. the current selected area) by simply replacing the "P43" in this URL with any list of valid table numbers. For example, you could edit the URL so that it now reads
...&_service=sasapp&dataset=usplaces&tables=H9+HCT5+P17+PCT22&logrecno=91337. Then hit enter to submit the new URL and in a few seconds you should see a display of the new set of 4 tables that you just entered. (You need to enter the table numbers in ascending order, with H tables preceeding P tables to avoid getting an error message. Note the use of the "+" symbol to separate the table codes.)

This file last modified Wednesday January 17, 2007, 16:16:21


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The   Missouri Census Data Center   is a sponsored program of the Missouri State Library within the office of the Missouri Secretary of State. The MCDC has been a partner in the U.S. Census Bureau's   State Data Center  program since 1979.

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