Status:Closed    Asked:Feb 22, 2016 - 04:54 AM

Is "migcounty" in 1940 100% census only available for a for few states, i.e. Alaska, Hawaii and Wyoming?

When I import the 1940 100% census data to Stata, I find that there are non-zero observations for the variable migcounty only for those individuals whose 1940 state of residence is Alaska, Hawaii or Wyoming. The total amount of non-zero observations is less than 0.5% of the population. Is this a problem in how I am reading the IPUMS-generated data file, or are there no data for individuals residing in other states?

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Staff Answer




You have found an error in the 1940 dataset that we did not know about. Thanks for pointing this out! We plan to release a corrected version of the MIGCOUNTY variable in the next couple months. In the meantime, since you identified a significant data error you are now entitled to a shiny, new IPUMS Mug! Please email your address to so that we can send you your prize.

Thank you for helping us maintain these important data resources!


Feb 23, 2016 - 01:12 PM

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