Status:Closed    Asked:Nov 21, 2017 - 11:29 AM

Why is the income wage variable incwage-capped? and how is the cap determined? 2016: 504,000, 2015:483,000...

In the ACS survey, I noticed that the income wage variable- incwage- is capped. In 2016, it was capped at $504,000, at 2015 at $483,000. how was the capping level determined? why is there a cap at all? thanks for your help answering my questions.

Do you have the same question? Follow this Question

Staff Answer


Jeff Bloem


Income values are top-coded in order to preserve confidentiality within public use data. Above some threshold of income there are fewer and fewer individuals, and therefore without top-codes it could be possible to identify individuals in the public use data. In order to prevent this from happening the U.S Census Bureau implements a top-coding scheme. The specific top-code value depends on the specific sample of data you are using. These details can be seen on the Codes Tab. In particular, in ACS samples, the top-code represents the average income of those within the 99.5th percentile within each state.


Nov 21, 2017 - 12:32 PM

Report it


Hi is there a way to get the foreign born population for a city (Elizabeth, N...
Why is there no age variable prior to 2008 anymore in CPS?
Is there a way that I can convert a DAT file to a STATA file? If so, how is t...
Underlying files for CPS Education Supplements (October)?
Income varialbe values & US variable
Why there is no data for 'VLHALLORG"
Login   |   Register

Recently Active Members

View More »

Share |