Privacy Policy

Data Research Group ("DRG", "we", or "us") takes the privacy and protection of personal information very seriously. The data we presented on the site was obtained from the United States Internal Revenue Service for data integrity.


Several steps were taken to avoid disclosure of information about individual taxpayers. ZIP codes from which fewer than 10 returns were filed were suppressed. The data for these ZIP Codes are not included in the state totals. Also, when an AGI class for a given ZIP code had a frequency of less than 10, it was combined with another AGI class within the same ZIP Code to create a total of 10 or greater. The order in which this was done was from highest AGI class to lowest AGI.


The exception to this rule is when the lowest AGI class had less than 10, the lowest AGI class was combined with the next higher AGI class where the combination of the two classes was greater than or equal to 10.


An additional disclosure protection technique employed was the removal of any return that represented a specified percentage of the total of any particular cell. For example, if one return represented 75% of the value of a given cell, that return was suppressed from the tabulation. The actual threshold percentage used, however, cannot be released. The returns suppressed in this manner are not included in the state totals. We presented the data here as it is, without any filtration, modification, addition and deletion. If you have any concerns, please contact us. We reserve the right to update this privacy policy with or without notice.


We use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click Google ad and content network privacy policy.