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Welcome to the CDXZipStream July 2011 Newsletter


This month's newsletter reviews how to get population estimates for a radius area around a zip code, and answers one of our most frequency asked questions:  how do I transfer CDXZipStream to my new computer?

There are three new blog articles for July: 

- Five Handy Tips all CDXZipStream Users Should Know    

Population GraphicPopulation Estimates for a Radius Area


Population estimation for a radius area is a straightforward task with CDXZipStream, combining the use of several calculations to get the final result.  This approach can be used not only for estimating total population within a radius, but for other population demographics based on age, gender, race, household data, etc.


First, use the right-click function CDXRadius to obtain the list of zip codes located within the radius of the target zip code.  Just right-click on any cell in your Excel worksheet, select "CDXZipStream Functions", then select "Insert CDXRadius Function".  Input the target zip code (at the center of the radius) along with the radius distance in miles or kilometers.  Click OK, and the list of zip codes within the radius will be returned to the worksheet.


Next, use the CDXZipStream button to obtain population data for each zip code.  Use your cursor to select the first zip code in the returned list, click on the CDXZipStream button on the main toolbar, and select the variable you need, such as Population or PopulationEstimate.  Click "Get Data", and CDXZipStream will return the requested data for each zip code in the list.  You can now use Excel's SUM function to add all the results.  For example, population data returned to cells C10 through C20 can be added together using the formula: =SUM(C10:C20).


Note: The variable Population listed in CDXZipStream data feeds is the population based on the 2000 Census.  The variable PopulationEstimate is calculated based on the current number of households the USPS delivers to in each zip code, multiplied by the average number of persons per household from the 2000 Census.  This value has been found to be a very accurate estimate of the population in each zip code.  Since the USPS updates the number of households monthly, PopulationEstimate is an excellent current snapshot of U.S. population.

FAQ:  How do I transfer CDXZipStream to my new computer?


 Transferring CDXZipStream to a new computer is easy.  Just follow the steps below:


1. Download and install the CDXZipStream demo on the new computer.

2. When installation is complete and Microsoft Excel opens, press the third button from the left on the CDXZipStream toolbar called "Licenses and Software Updates."  (If you are using Excel 2007 or 2010, the CDXZipStream toolbar is located under the "Add-Ins" tab.)

3. Press the "Buy Now" button followed by pressing "Generate Keycode" and log into our web site using the username and password you received with your original purchase.  If you did not retain your original purchase information please contact us at

4.  A web page allowing you to generate a new keycode should appear with your new Computer ID automatically entered.  This computer ID is unique for each PC and your registration code is based on it.  Then press "Next" to generate your new registration key.

5.  Copy your new keycode from the box that appears and press the "x" in the upper right corner to minimize your browser.

6. Paste the copied code into the "keycode" section of the CDXZipStream Purchase and Registration" box and press OK.  (This is the box where you pressed the "Generate Keycode" button.)  CDXZipStream will now be fully activated on your computer.

You can also use your online account to purchase data updates or upgrade your software to a higher version.  Purchase history is also available from the "Download Data files" section of your account.
Update: The instructions above are intended for the 32 bit classic version of CDXZipStream. Our latest version and the current demo on the web site have a different installation and activation method. This new version of CDXZipStream has an updated user interface, supports 64 bit Excel and can work with Bing Maps as well as Mappoint. Please refer to our blog article How to Reinstall CDXZipStream on a New Computer for updated instructions as well as screen shots of the installation process.

July Data Updates


CDXZipStream data feeds were updated as of July 26.  There were 92 changes to the zip code database.  If you would like to update your database to reflect these changes, click on the "License Information and Software Updates" icon on the CDXZipStream toolbar, and select "Data Updates" to login to your account.  If you've forgotten your user name or password, please contact us at

Your online account can be used to upgrade your version, activate your copy of CDXZipStream, purchase enhancements or download data updates. Please contact us a with any issues accessing your data.

We hope you find the information here helpful for you and your organization.  Feel free to contact us with your feedback and suggestions by replying to this email.

The Team at CDX Technologies  


July 2011

Map of the World

In This Issue

 Population Estimates for a Radius Area


FAQ: How do I transfer CDXZipStream to my new computer?


July Data Updates