Home / Central Data Catalog / USA_1990_PHC_V01_M_V7.5_A_IPUMS
central

1990 Census of Population and Housing - IPUMS Subset

United States, 1990
Get Microdata
Reference ID
USA_1990_PHC_v01_M_v7.5_A_IPUMS
Producer(s)
U.S. Census Bureau, IPUMS
Metadata
Documentation in PDF DDI/XML JSON
Study website
Created on
Sep 03, 2025
Last modified
Sep 03, 2025
Page views
5705

Data file: USA1990_PHC-P-H.dat

Person records

Cases: 12501046

Variables

PERNUM
Person number
PERWT
Person weight
MOMLOC
Mother's location in household
POPLOC
Father's location in household
SPLOC
Spouse's location in household
PARRULE
Rule for linking parent
SPRULE
Rule for linking spouse
STEPMOM
Probable stepmother
STEPPOP
Probable stepfather
POLYMAL
Man with more than one wife linked
POLY2ND
Woman is second or higher order wife
FAMUNIT
Family unit membership
FAMSIZE
Number of own family members in household
NCHILD
Number of own children in household
NCHLT5
Number of own children under age 5 in household
ELDCH
Age of eldest own child in household
YNGCH
Age of youngest own child in household
RELATE
Relationship to household head [general version]
RELATED
Relationship to household head [detailed version]
AGE
Age
AGE2
Age, grouped into intervals
SEX
Sex
MARST
Marital status [general version]
MARSTD
Marital status [detailed version]
CHBORN
Children ever born
NATIVITY
Nativity status
BPLCOUNTRY
Country of birth
CITIZEN
Citizenship
BPLUS
State of birth, United States
RACE
Race or color
RACEUS
Race, United States
INDIG
Member of an indigenous group
ANCEST
Ancestry, U.S. and Puerto Rico
HISPAN
Hispanic origin, U.S. and Puerto Rico
SPEAKENG
Speaks English
LANGUS
Language spoken at home, United States
SCHOOL
School attendance
EDATTAIN
Educational attainment, international recode [general version]
EDATTAIND
Educational attainment, international recode [detailed version]
EDUCUS
Educational attainment, United States
EMPSTAT
Activity status (employment status) [general version]
EMPSTATD
Activity status (employment status) [detailed version]
LABFORCE
Labor force participation
OCCISCO
Occupation, ISCO general
OCC
Occupation, unrecoded
OCC95US
Occupation 1950 basis, U.S.
INDGEN
Industry, general recode
IND
Industry, unrecoded
IND95US
Industry 1950 basis, U.S.
CLASSWK
Status in employment (class of worker) [general version]
CLASSWKD
Status in employment (class of worker) [detailed version]
WRKMTHS
Months worked last year
HRSWORK1
Hours worked per week
HRSWORK2
Hours worked per week, categorized
HRSUSUAL1
Usual hours worked per week
HRSUSUAL2
Usual hours worked per week, categorized
WRKAVAIL
Available to work
TRNWRK
Means of transportation to work or school
INCTOT
Total income
INCEARN
Earned income
INCWAGE
Wage and salary income
INCSELF
Self-employment income
INCWEL
Income from anti-poverty or welfare programs
INCRET
Retirement or pension income
MIGRATE5
Migration status, 5 years
GEOMIG1_5
1st subnational geographic level of residence 5 years prior to survey, world [consistent boundaries over time]
MIGYRS2
Years residing in current dwelling
MIGHOUSE
Same house 5 years ago
MIG1_5_US
State of residence 5 years ago, United States; consistent boundaries, GIS
DISCARE
Personal care limitation
DISINDEP
Independent mobility difficulty
DISWORK
Work disability
US1990A_PERNUM
Person number in sample unit
US1990A_PERWT
Person weight
US1990A_MOMLOC
Mother's location in the household
US1990A_STEPMOM
Probable step/adopted mother
US1990A_MOMRULE
Rule for linking mother
US1990A_POPLOC
Father's location in the household
US1990A_STEPPOP
Probable step/adopted father
US1990A_POPRULE
Rule for linking father
US1990A_SPLOC
Spouse's location in household
US1990A_SPRULE
Rule for linking spouse
US1990A_FAMSIZE
Number of own family members in household
US1990A_NCHILD
Number of own children in household
US1990A_NCHLT5
Number of own children under age 5 in household
US1990A_FAMUNIT
Family unit membership
US1990A_ELDCH
Age of eldest own child in household
US1990A_YNGCH
Age of youngest own child in household
US1990A_NSIBS
Number of own siblings in household
US1990A_RELATE
Relationship to household head
US1990A_AGE
Age
US1990A_SEX
Sex
US1990A_RACE
Race
US1990A_MARST
Marital status
US1990A_CHBORN
Children ever born
US1990A_BPL
Birthplace
US1990A_ANCESTR1
Ancestry, first response
US1990A_ANCESTR2
Ancestry, second response
US1990A_CITIZEN
Citizenship status
US1990A_HISPAN
Hispanic origin
US1990A_YRIMMIG
Year of immigration
US1990A_YRSUSA2
Years in the United States, intervalled
US1990A_LANGUAGE
Language spoken
US1990A_SPEAKENG
Speaks English
US1990A_SCHOOL
School attendance
US1990A_EDUC99
Educational attainment, 1990
US1990A_EDUCREC
Educational attainment recode
US1990A_SCHLTYPE
Public or private school
US1990A_EMPSTAT
Employment status
US1990A_LABFORCE
Labor force status
US1990A_OCC1950
Occupation, 1950 basis
US1990A_OCC
Occupation
US1990A_OCCSCORE
Occupational income score
US1990A_SEI
Duncan Socioeconomic Index
US1990A_IND1950
Industry, 1950 basis
US1990A_IND
Industry
US1990A_CLASSWKR
Class of worker
US1990A_WKSWORK1
Weeks worked last year
US1990A_WKSWORK2
Weeks worked last year, intervalled
US1990A_HRSWORK1
Hours worked last week
US1990A_HRSWORK2
Hours worked last week, intervalled
US1990A_UHRSWORK
Usual hours worked per week
US1990A_YRLASTWK
Year last worked
US1990A_WORKEDYR
Worked last year
US1990A_ABSENT
Absent from work last week
US1990A_LOOKING
Looking for work
US1990A_AVAILBLE
Available for work
US1990A_INCTOT
Total personal income
US1990A_INCWAGE
Wage and salary income
US1990A_POVERTY
Poverty status
US1990A_INCBUS
Non-farm business income
US1990A_INCFARM
Farm income
US1990A_INCSS
Social Security income
US1990A_INCWELFR
Welfare (public assistance) income
US1990A_INCINVST
Interest, dividend, and rental income
US1990A_INCEARN
Total personal earned income
US1990A_INCOTHER
Other income
US1990A_MIGRATE5
Migration status, 5 years
US1990A_MIGPLAC5
State or country of residence 5 years ago
US1990A_MIGMET5
Metropolitan area of residence 5 years ago
US1990A_MIGCITY5
City of residence 5 years ago
US1990A_MIGPUMA
PUMA of residence 5 years ago
US1990A_MOVEDIN
Occupant moved into residence
US1990A_PWSTATE2
Place of work: state
US1990A_PWPUMA
Place of work PUMA
US1990A_DISABWRK
Work disability
US1990A_DISABMOB
Disability limiting mobility
US1990A_PERSCARE
Personal care limitation
US1990A_VETSTAT
Veteran status
US1990A_VET80X90
Veteran, served September 1980 to July 1990
US1990A_VET75X80
Veteran, served May 1975 to August 1980
US1990A_VETVIETN
Veteran, served during Vietnam era (August 1964 to April 1975 )
US1990A_VETYRS
Years of active-duty military service
US1990A_VET55X64
Veteran, served February 1955 to July 1964
US1990A_VETKOREA
Veteran, served during Korean conflict era (June 1950 to January 1955 )
US1990A_VETWWII
Veteran, served during World War II era (September 1940 to July 1947 )
US1990A_VETOTHER
Veteran of other period
US1990A_TRANWORK
Means of transportation to work
US1990A_CARPOOL
Carpooling
US1990A_RIDERS
Vehicle occupancy
US1990A_TRANTIME
Travel time to work
US1990A_DEPARTS
Time of departure for work
US1990A_PWMETRO
Place of work metropolitan area
US1990A_PWCITY
Place of work city
US1990A_QAUGMENT
Flag for augmented person
US1990A_QAGE
Flag for age
US1990A_QANCEST1
Flag for ancestry, first response
US1990A_QANCEST2
Flag for ancestry, second response
US1990A_QDEPARTS
Flag for time of departure for work
US1990A_QBPL
Flag for birthplace
US1990A_QCARPOOL
Flag for carpooling
US1990A_QCHBORN
Flag for children ever born
US1990A_QCITIZEN
Flag for citizenship status
US1990A_QCLASSWK
Flag for class of worker
US1990A_QLANGUAG
Flag for language spoken
US1990A_QDISABWR
Flag for work disability
US1990A_QEMPSTAT
Flag for employment status and labor force status
US1990A_QEDUC
Flag for educational attainment
US1990A_QHISPAN
Flag for hispanic origin
US1990A_QHRSWORK
Flag for hours worked last week
US1990A_QINCBUS
Flag for non-farm business, total, and total earned income
US1990A_QINCFARM
Flag for farm, total, and total earned income
US1990A_QINCINVS
Flag for interest, dividend and rental, total, and total earned income
US1990A_QINCOTHE
Flag for other, total, and total earned income
US1990A_QINCSS
Flag for Social Security, total, and total earned income
US1990A_QINCWAGE
Flag for wage and salary, total, and total earned income
US1990A_QINCWELF
Flag for welfare (public assistance), total, and total earned income
US1990A_QIND
Flag for industry
US1990A_QDISABMO
Flag for disability limiting mobility
US1990A_QPERSCAR
Flag for personal care limitation
US1990A_QPWPUMA
Flag for place of work PUMA
US1990A_QMARST
Flag for marital status
US1990A_QINCRETI
Flag for retirement, total, and total earned income
US1990A_QMIGPLC5
Flag for place of residence 5 years ago
US1990A_QMIGRAT5
Flag for migration status, 5 years
US1990A_QVETYRS
Flag for years of active-duty military service
US1990A_QMOVEDIN
Flag for occupant moved into residence
US1990A_QOCC
Flag for occupation
US1990A_QRACE
Flag for race
US1990A_QRELATE
Flag for relationship to household head
US1990A_QRIDERS
Flag for vehicle occupancy
US1990A_QSCHOOL
Flag for school attendance and type
US1990A_QSEX
Flag for sex
US1990A_QSPEAKEN
Flag for speaks English
US1990A_QTRANTIM
Flag for travel time to work
US1990A_QTRANWOR
Flag for means of transportation to work
US1990A_QUHRSWOR
Flag for usual hours worked per week
US1990A_QVETPER
Flag for various periods of military service
US1990A_QVETSTAT
Flag for various periods of military service
US1990A_QWKSWORK
Flag for weeks worked last year
US1990A_QWORKEDY
Flag for worked last year
US1990A_QYRIMMIG
Flag for year of immigration and years in the U.S.
US1990A_QYRLASTW
Flag for year last worked
US1990A_INCRETIR
Retirement income
Total: 214
Back to Catalog