census year
ipums sample identifier
household serial number
original census bureau household serial number
household weight
household cluster for variance estimation
census region and division
household strata for variance estimation
group quarters status
person number in sample unit
person weight
number of own children in the household
marital status
race [general version]
race [detailed version]
hispanic origin [general version]
hispanic origin [detailed version]
educational attainment [general version]
educational attainment [detailed version]
field of degree [general version]
field of degree [detailed version]
usual hours worked per week
wage and salary income