Summary list of population schedules and indexes with call numbers:
1790: Printed version of the entire schedule available.
First census of the United States, 1790, MarylandCall Number: HA421.5 1790 .J23
LOCATION: Hornbake Library Maryland Room Maryland Reference
Chiefly a reprint of the 1907 ed. published by the U. S. Govt. Print. Off., Washington. New material edited by Ronald Vern Jackson and others. Includes original title page : Heads of families at the first census of the United States taken in the year 1790, Maryland
1800: Printed name index in MD REF HA421.5 1800 .T44; schedules available on microfilm (MD MFILM HA422.A4 1800)
Maryland 1800 censusCall Number: HA421.5 1800 .T44
LOCATION: Hornbake Library Maryland Room Maryland Reference
1800 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1810: Printed name index in MD REF HA421.5 1810 .J23; schedules available on microfilm (MD MFILM HA422.A4 1810)
1810 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1820: Printed name index in MD REF HA421.5 1820 .J23; schedules available on microfilm (MD MFILM HA422.A4 1820)
1820 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1830: Printed name index in MD REF HA421.5 1830 .J23; schedules available on microfilm (MD MFILM HA422.A4 1830)
1830 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1840: Printed name index in MD REF HA421.5 1840 .J23; schedules available on microfilm (MD MFILM HA422.A4 1840)
1840 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1850: Printed name index in MD REF HA421.5 1850 .J23; schedules available on microfilm (MD MFILM HA422.A4 1850)
Maryland 1850 censusCall Number: HA421.5 1850 .J23
LOCATION: Hornbake Library Maryland Room Maryland Reference
1850 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1860: Printed name index (2 vols.) in MD REF HA421.5 1860 M37 & HA421.5 1860 .B35; schedules available on microfilm (MD MFILM HA422.A4 1860)
1860 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1870: Printed name index (2 vols.) in MD REF HA421.5 1870 M25; schedules available on microfilm (MD MFILM HA422.A4 1870)
1870 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1880: Soundex index (MD MFILM HA421.5 1880.C472); schedules available on microfilm (MD MFILM HA422.A4 1880)
1880 Census of PopulationCall Number: HA422 .A4
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
1890: Maryland schedules destroyed; only Civil War veterans and widows listing remains; index available in MD REF E494 .D57 1993
1900: Soundex index (MD MFILM HA421.5 1900.C472), schedules available on microfilm (MD MFILM HA422.A4 1900)
1910: Printed name index (3 vols.) in MD REF HA421.5 1910 .M37; schedules available on microfilm (MD MFILM HA421.5 1910 U54)
1920: Soundex index available (MD MFILM HA421.5 1920 .C471), schedules available on microfilm (MD MFILM HA421.5 1920 .C47)
1930: No index available; use National Archives website 1930 Census Microfilm Locator to determine which reel of the population schedules to search (MD MFILM HA421.5 1930.T626)
15th census, population, 1930. MarylandCall Number: HA421.5 1930 T626
LOCATION: Hornbake Library Maryland Room Maryland Microfilm
Reels 843-882
Allegany - reels 843-844 -- Anne Arundel - reels 844-845 -- Baltimore County - reels 845-847 -- Baltimore City - reels 848-871 -- Calvert, Caroline- reel 871 -- Carroll, Charles - reel 872 -- Cecil, Dorchester - reel 873 -- Frederick - reel 874 -- Garrett, Harford - reel 875 -- Howard, Kent - reel 876 -- Montgomery - reels 876-877 -- Prince Georges - reels 877-878 -- Queen Anne - reel 878 -- Somerset, St. Mary’s - reel 879 -- Talbot - reels 879-880 -- Worcester - reel 880 -- Washington - reel 880-881 -- Wicomico - reels 881-882.
1940: Available online at National Archives website.
1940 censusDigitized census records for 1940 census are available for all the states at the National Archives website.