United States Census of 1900 - IPUMS Subset

United States, 1900

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Reference ID

USA_1900_PHC_v01_M_v7.5_A_IPUMS

Producer(s)

Department of the Interior, IPUMS

Metadata

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Created on

Dec 23, 2014

Last modified

Sep 03, 2025

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Age in months (US1900A_AGEMONTH)

Data file: USA1900_PHC-P-H

Overview

Type: Discrete

Start: 302

End: 303

Width: 2

Range: -

Format: Numeric

Questions and instructions

Literal question

<svar a="all" v="US00A423 US00A426 US00A427">7. ____ Date of birth: month, year.<br />8. ____ Age at last birthday.<br /></svar>

Categories

Value	Category
00	0 months old
01	1 month old
02	2
03	3
04	4
05	5
06	6
07	7
08	8
09	9
10	10
11	11
99	NIU (not in universe) or blank

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Description

Definition

This variable reports the age, in months, of persons less than one year old on census day.

Universe

United States 1900: Persons below 1 year old

concept

Concept

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