Year

Census Day

1790

First Monday in August, ranging from August 2 to August 7

1800

First Monday in August, ranging from August 2 to August 7

1810

First Monday in August, ranging from August 2 to August 7

1820

First Monday in August, ranging from August 2 to August 7

1830

June 1

1840

June 1

1850

June 1

1860

June 1

1870

June 1

1880

June 1

1890

June 1

1900

June 1

1910

April 15

1920

January 1

1930

April 1