The Decennial Census began in 1790 and was taken each decade thereafter.
Information on home ownership was included in each Decennial Census beginning in 1890. Mortgage status was collected in 1890, 1920, and 1940.
The Census of Housing was first taken as part of the Decennial Census of 1940.
1790-1970 HA195.M5 Storage Microfilm
1790-1980 HA201 (census year) Census Collection 3rd. floor
1990 HA201.1990.A56 Census Collection 3rd. floor
1990 STF 1,2,3 CdRom Storage
2000 HA201.I22C43 2000 Census Collection 3rd. floor
Summary Population and Housing Characteristics, 2000. Series PHC-3
2010 American FactFinder OR 2010 Census
1940 HA201.1940.A6 V.1-4 Census Collection 3rd floor
HA195.M5 Storage Microfilm
1950 HD7293.A4883 Census Collection 3rd floor
HA195.M5 Storage Microfilm
1960 HD7293.A4884 Census Collection 3rd floor
HA195.M5 Storage Microfilm
1970 HD7293.A4885 Census Collection 3rd floor
HA195.M5 Storage Microfilm
1980 HD7293.A6113 Census Collection 3rd floor (Characteristics of Housing units)
HD7293.C42 Census Collection 3rd floor (Metropolitan Housing Characteristics)
1990 HD7293.A6113 Census Collection 3rd floor (Detailed Housing Characteristics)
HD7293.C42 Census Collection 3rd floor (Metropolitan Housing Characteristics)
Census of Housing - Census Bureau online