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FamilySearch - United States Census, 1920 ^FREE

FamilySearch - United States Census, 1930 ^FREE

FamilySearch - United States Census, 1940 ^FREE

Free Census Project (USGenWeb) - Maryland Online Inventory

Lists the completed transcriptions currently online, updated weekly. Copies of these transcriptions are placed in the USGenWeb Archives.

Maryland State Archives Census Indexes (1776, 1778, 1870, 1880)

Online searchable index for the following censuses and counties: 1776 (Anne Arundel, Baltimore, Caroline, Dorchester, Frederick, Harford, Prince George's, Queen Anne, and Talbot Counties), 1778 (Caroline, Charles, and Queen Anne's Counties), 1870 (Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil, Charles, Dorchester, Frederick, Harford, Howard, Kent, Montgomery, Prince George's, Queen Anne's, St. Mary's, Somerset, Talbot, Washington, Wicomico, and Worcester Counties and Baltimore City) and 1880 (Anne Arundel County only).

My Free Census - Search Free Maryland Census Records Online

Online in an easy to use census directory.

National Archives - Browse the 1940 Census - Maryland ^FREE

National Archives & Records Administration

The USGenWeb Census Project - Maryland County Index

The US census data on this site was transcribed and proofread by USGenWeb Census Project volunteers.

The USGenWeb Census Project On-Line Census Inventory - Maryland

State-by-state inventory of transcribed censuses with links to scanned images.

United States Census Bureau - 1790 Census: Heads of Families

Printed transcriptions showing Heads of Household for the following states: Connecticut, Maine, Maryland, Massachusetts, New Hampshire, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Vermont and Virginia.

United States Colored Troops Resident in Baltimore at the time of the 1890 Census

Alphabetical list of soldiers, from Maryland State Archives.

USGenWeb Archives - Census Images - Maryland