Delaware Census

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Portal:United States Census > Delaware


1790 Census -- The 1790 census for Delaware is missing. A substitute for the 1790 census created from tax lists is:

1800-1930 -- The federal censuses are available at the Family History Library and online at:

1800-1810 -- Portions of the census are missing.

1880 United States Census– A Free Internet Index and Images to the US Census can be viewed on the Family Search Record Pilot – Pilot Site. This index includes an every name index to population schedules listing inhabitants. It includes the full name, race, sex, age, birth month (if born during the previous year), relationship to head of household, whether married, single or divorced, whether married during the previous year, country or state of birth of each person and his parent’s, occupation and street address and house number

1890 Census -- The 1890 census was destroyed.

1900 Federal Census - A free Internet index and images to the 1900 United States Census can be viewed on the  FamilySearch Record Search – Pilot Site. Important additions to this census are month and year of birth of each household member, number of years married for each married person, number of children born to each mother and the number of those still living, year of immigration, and number of years in the United States.

Historical Background

1776--Delaware declared its independence from Britain and created a government separate from Pennsylvania. 

1787--Delaware become the first state.


Statewide indexes are available in two forms:

  1. Book indexes are available for the 1790 substitute census and censuses taken 1800, 1810, 1820, 1830, 1840, 1850, 1860, and 1870.
  2. Soundex indexes are available for the 1880, 1900, 1920, and 1930 censuses.

Ancestry--All of the Delaware federal census records are indexed on Ancestry.

1850 Book Index--One of the indexes for the 1850 census is:

  • Olmstead, Virginia L. Index to the 1850 Census of Delaware. Baltimore, Maryland: Genealogical Publishing, 1977. (Family History Library book 975.1 X22o 1850.) Indexes for the three counties are listed separately. An every-person index is given for each of the counties, with age, birthplace, and the original census sheet number. The New Castle County 1850 census is on two rolls of microfilm with some duplication of page numbers.

Special Censuses

Colonial Census

1693--A special census was taken of Swedes who were associated with the Swedish Lutheran Church and who were living in Pennsylvania, Delaware, west New Jersey, and Cecil County, Maryland. The following book contains both the census and an index to it:

  • Craig, Peter Stebbins. The 1693 Census of the Swedes on the Delaware. Winter Park, Florida: SAG Publications, 1993. (Family History Library book 973 X4c.)

Mortality Schedules

1850-1880--Mortality schedules for 1850, 1860, 1870, and 1880 are at the Delaware Public Archives, the Historical Society of Delaware, and on microfilm at the Family History Library. The 1870 and 1880 schedules are indexed in:

  • Jackson Ronald Vern. Delaware 1870 Mortality Schedule. Bountiful, Utah: Accelerated Indexing Systems, 1981. Family History Library book 975.1 X2j 1870.

Slave Schedules

1850-1860--Slave schedules for 1850 and 1860 list the names of slave owners, but do not normally list the names of the slaves. The numbers of slaves, their gender, and their age ranges are given. The 1850 and 1860 slave schedules are indexed in:

  • Jackson, Ronald Vern. Delaware 1850-1860 Slave Schedules. Salt Lake City: Accelerated Indexing Systems International, 1986. (Family History Library book 975.1 X22j.)

For census slave schedules see:

State Censuses

1782 Delaware State Census--A 1782 state census exists for seven of the "hundreds" (townships). The state census has been reconstructed for the rest of the state from tax lists.

Web Sites


Heritage Quest Online:

Census Online:

Genealogy Today:

Access Genealogy:

Mortality Schedules:


Delaware Research Outline. Salt Lake City, Utah: Intellectual Reserve, Inc.Family History Department, 1998, 2001.