For directions on reading the variable description see Data Dictionary Introduction.

Availability:

1850	1860	1870	1880	1900	1910	1920	1940	1950	1960	1970	1980	1990
X	X	X	X	X	X	X	X	X	X	X	X	X

Universe:
All persons.

Description/Comparability:
AGE gives the person’s age in years as of their last birthday prior to or on the day of enumeration.

AGE is fully comparable, but it is topcoded differently in some years. 1900 asked for year of birth (BIRTHYR) in addition to age at last birthday.

Codes and Frequencies

Flags: QAGE, QAGE2

Topcodes:

1940-1970:	100 years
1980-1990:	90 years

Census Questions:
1850   1860   1870   1880   1900   1910   1920   1940   1950   1960   1970   1980   1990

Enumerator Instructions:
1850   1860   1870   1880   1900   1910   1920   1940   1950   1960   1970   1980   1990