Definition
FARMIPUM identifies farm households according to the IPUMS-USA definition. Any household containing a person with the occupation "farmer" is coded as a farm, including group quarters.
Farmers are identified as individuals with an OCCHISCO code between 61110 and 61400. In the United States, we also check if there is anyone in the household with an US1880A_0406 code of 100. For the two percent sample of United Kingdom 1851, we use the OCCUK code of 100.
Any household containing a farmer under these definitions is regarded as a farm. FARMIPUM does not require the household to be in a non-urban area. The variable FARM restricts farm status to non-urban areas only, based on the (URBAN) variable.