To access the data, select the base pair of years you would like to link from the top row, and the later year from the column below. Click on the link to go to an OpenICPSR repository with the crosswalk, documentation, and instructions for those years. See our Quick Start Guide for more.

Each button shows the number of links between the two censuses, in millions.

1860

1870

1880

1900

1910

1920

1930

1940

1850

0.07
0.46

1860

1870

0.64
2.00
1.47
5.17
3.90
2.90
5.52
8.36
7.52
10.9

1880

2.67
12.6
7.31
11.2
8.00
6.11
8.45
14.8
30.7
15.2
11.1

1900

19.5
14.1
24.0
21.7

1910

24.4
37.3
45.9
37.2
57.1
47.4

1920

1930

53.0
80.2

Files separated by sex are available for the following larger crosswalks: 1900-1910, 1910-1920, 1920-1930, 1920-1940, and 1930-1940.

67.5