IPUMS Variables (A-E)

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	Household record		Person record
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	Vacancy Status Variables		Education Variables
	Dwelling Characteristic Variables		Work Variables
	Appliances, Mechanical, Other Variables		Income Variables
	Historical PUMS Technical Variables		Migration Variables
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	1970 Neighborhood Variables		Disability Variables
			Veteran Status Variables
			Place of Work and Travel Time Variables
			Other Variables
			1910 Linking Variables

IPUMS Data Quality Flags Description

IPUMS Variables Quick Reference

A

Variable Name	Variable Description	Rec	Variable Description	Codes and Frequencies	1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
ABSENT	Absent from work last week	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	X
ACCESS	Access to unit	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	X	X	.
ACREHOUS	House acreage	H	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	.
ACRENONF	Acreage of nonfarm house	H	Desc	Codes	.	.	.	.	.	.	.	.	X	.	.	.	.
ACREPROP	Acreage of property	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	X	X	X
ACTIVITY	Main activity last week	P	Desc	Codes	.	.	.	.	.	.	.	.	X	.	.	.	.
AGE	Age	P	Desc	Codes	X	X	X	X	X	X	X	X	X	X	X	X	X
AGEMARR	Age at first marriage	P	Desc	Codes	.	.	.	.	.	.	.	SL	.	X	F1	X	.
AGEMONTH	Age in months	P	Desc	Codes	X	X	X	X	.	X	X	X	.	.	.	.	.
AIRCON	Air conditioning	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F2	X	.
ANCESTR1	Ancestry, first response -- General	P	Desc		.	.	.	.	.	.	.	.	.	.	.	X	X
ANCESTR1	Ancestry, first response -- Detailed	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	X
ANCESTR2	Ancestry, second response -- General	P	Desc		.	.	.	.	.	.	.	.	.	.	.	X	X
ANCESTR2	Ancestry, second response -- Detailed	P	Desc		.	.	.	.	.	.	.	.	.	.	.	X	X
AUTOS	Automobiles available	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F2	X	.
AVAILBLE	Available for work	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	X

B

Variable Name	Variable Description	Rec	Variable Description	Codes and Frequencies	1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
BASEMENT	Basement	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	X	.	.
BATHRMS	Number of bathrooms	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F2	X	.
BEDROOMS	Number of bedrooms	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F1	X	X
BIRTHMO	Month of birth	P	Desc	Codes	.	.	X	X	X	.	.	.	X	.	.	.	.
BIRTHQTR	Quarter of birth	P	Desc	Codes	.	.	X	X	X	.	.	.	X	X	X	X	.
BIRTHYR	Year of birth	P	Desc		.	.	.	.	X	.	.	.	.	.	.	.	.
BLIND	Blind	P	Desc	Codes	X	X	X	X	.	X	.	.	.	.	.	.	.
BPL	Birthplace -- General	P	Desc	Codes	X	X	X	X	X	X	X	X	X	X	X	X	X
BPL	Birthplace -- Detailed	P	Desc	Codes	X	X	X	X	X	X	X	X	X	X	X	X	X
BUILTYR	Age of structure	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	X	X	X

C

Variable Name	Variable Description	Rec	Variable Description	Codes and Frequencies	1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
CARPOOL	Carpooling	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	X
CHBORN	Children ever born	P	Desc	Codes	.	.	.	.	X	X	.	SL	SL	X	X	X	X
CHSURV	Children surviving	P	Desc	Codes	.	.	.	.	X	X	.	.	.	.	.	.	.
CITIZEN	Citizenship status	P	Desc	Codes	.	.	X	.	X	X	X	X	X	.	F1	X	X
CITY	City -- General	H	Desc		X	X	X	X	X	X	X	X	X	.	.	X	X
CITY	City -- Detailed	H	Desc	Codes	X	X	X	X	X	X	X	X	X	.	.	X	X
CITYPOP	City population	H	Desc		X	X	X	X	X	X	X	X	X	.	.	S,M	X
CLASS5YR	Class of worker 5 years ago	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	F1	.	.
CLASSWKR	Class of worker -- General	P	Desc	Codes	.	.	.	.	.	X	X	X	X	X	X	X	X
CLASSWKR	Class of worker -- Detailed	P	Desc	Codes	.	.	.	.	.	X	X	X	X	X	X	X	X
CNTYGP97	County group, 1970	H	Desc		.	.	.	.	.	.	.	.	.	.	M	.	.
CNTYGP98	County group, 1980	H	Desc		.	.	.	.	.	.	.	.	.	.	.	S,M	.
COLL5YR	College 5 years ago	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	X	X	.
COMMUSE	Commercial use	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	X	X	X
CONDO	Condominium status	H	Desc	Codes	.	.	.	.	.	.	.	.	.	.	X	X	X
CONDOFEE	Monthly condominium fee	H	Desc		.	.	.	.	.	.	.	.	.	.	.	.	X
COSTELEC	Annual electricity cost	H	Desc		.	.	.	.	.	.	.	.	.	.	X	X	X
COSTFUEL	Annual home heating fuel cost	H	Desc		.	.	.	.	.	.	.	.	.	.	X	X	X
COSTGAS	Annual gas cost	H	Desc		.	.	.	.	.	.	.	.	.	.	X	X	X
COSTWATR	Annual water cost	H	Desc		.	.	.	.	.	.	.	.	.	.	X	X	X
COUNTY	County	H	Desc		X	X	X	X	X	X	X	.	.	.	.	.	.
CRIME	Crime	P	Desc	Codes	X	X	.	.	.	.	.	.	.	.	.	.	.

D

Variable Name	Variable Description	Rec	Variable Description	Codes and Frequencies	1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
DATANUM	Data set number	H	Desc		X	X	X	X	X	X	X	X	X	X	X	X	X
DATANUM	Data set number	P	Desc		X	X	X	X	X	X	X	X	X	X	X	X	X
DEAF	Deaf and dumb	P	Desc	Codes	X	X	X	X	.	X	.	.	.	.	.	.	.
DEDUCTS	Deductions for retirement	P	Desc	Codes	.	.	.	.	.	.	.	SL	.	.	.	.	.
DEPARTS	Time of departure for work	P	Desc		.	.	.	.	.	.	.	.	.	.	.	.	X
DETOCC	Detailed occupation, 1950 basis	P	Desc		X	X	X	X	.	X	X	.	.	.	.	.	.
DISABDUR	Duration of work disability	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	F1	.	.
DISABMOB	Disability limiting mobility	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	.	X
DISABTRN	Public transportation disability	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	X	.
DISABWRK	Work disability	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	F1	X	X
DISHWSHR	Dishwasher	H	Desc	Codes	.	.	.	.	.	.	.	.	.	.	F1	.	.
DRYER	Clothes dryer	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F1	.	.
DURMARR	Duration of current marital status	P	Desc	Codes	.	.	.	.	X	X	.	.	SL	.	.	.	.
DURUNEMP	Continuous weeks unemployed	P	Desc		.	.	.	.	.	.	.	X	SL	.	.	.	.
DWSIZE	Dwelling size	H	Desc		X	X	X	X	.	.	X	.	.	.	.	.	.

E

Variable Name	Variable Description	Rec	Variable Description	Codes and Frequencies	1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
EDSIMIL	Enumeration district match ID	H	Desc		.	.	.	.	.	.	.	X	X	.	.	.	.
EDUC99	Educational attainment, 1990	P	Desc	Codes	.	.	.	.	.	.	.	.	.	.	.	.	X
EDUCREC	Educational attainment recode	P	Desc	Codes	.	.	.	.	.	.	.	X	SL	X	X	X	X
ELDCH	Age of eldest own child in household	P	Desc		X	X	X	X	X	X	X	X	X	X	X	X	X
ELEVATOR	Elevator in structure	H	Desc	Codes	.	.	.	.	.	.	.	.	.	X	F1	X	.
EMPSTAT	Employment status -- General	P	Desc	Codes	.	.	.	.	.	X	.	X	X	X	X	X	X
EMPSTAT	Employment status -- Detailed	P	Desc	Codes	.	.	.	.	.	X	.	X	X	X	X	X	X
ENUMDAY	Day of enumberation	H	Desc		X	X	X	X	.	.	X	.	.	.	.	.	.
ENUMDIST	Enumeration district	H	Desc		.	.	.	X	X	.	X	.	.	.	.	.	.
ENUMMO	Month of enumeration	H	Desc	Codes	X	X	X	X	.	.	X	.	.	.	.	.	.

Availability Key

All Years

1940 and 1950

1970

1980

1990

X

=

Available in all samples in this year

SL

=

Available only for sample-line persons

F1

=

Form 1 samples (5%)

S

=

State sample ("A" or 5% state)

S

=

State sample, Flat sample (5% state)

.

=

Not available in this year

F2

=

Form 2 samples (15%)

M

=

Metro sample ("B" or 1% county group)

M

=

Metro sample (1% metro)

S

=

State sample

UR

=

Urban/Rural sample ("C" or 1% urban/rural)

E

=

Elderly sample

M

=

Metro samples (county group)

N

=

Neighborhood samples