Status:Closed    Asked:Aug 12, 2013 - 01:55 AM

Why is there Ancestry variation between IPUMS and US census Factfinder?

For ACS Ancestry data, 1st response (2007-2011, ACS 5-year sample). I compared the summarized microdata from your site to the summarys generated by Factfinder at the US census site. I expected them to be the same, but they are not. I know groups with under 10,000 people are rolled up for privacy issues, but is that the only thing that causes these variances?

example for the whole US:

ANCESTR1D IPUMS Census summary

----------- ------ ---------------
Somalian 105,927 102,503

Kenyan 41,960 45,089

Its also not clear exactly what Ancestry group the omited ones are rolled up to.

Do you have the same question? Follow this Question

Staff Answer

I think what you are seeing is due to the fact that the ACS PUMS files include only a portion of the cases used in the summary files. In fact, PUMS estimates for basic demographic characteristics such as sex differ slightly from FactFinder as well. Please see the link below for more details.



Aug 12, 2013 - 10:34 AM

Report it


when trying to declare the IPUMS data as panel on stata there are repeated ti...
2010 5-year PUMA definition
Where can I find city populations, by age, San Diego, New Orleans, Atlanta, C...
Hi, it has been over 4 hours for my data extract and I was wondering if there...
When I take several Nov Supplements, the weighted number of voters equals pub...
Are there aggregate categories for OCC/OCCLY in CPS?
Login   |   Register

Recently Active Members

View More »

Share |