Tag Archives: Census

The Black Population of Cambridge by Census Year, 1790 – 2020

George Washington Lewis Jr. family at 47 Parker
Street. Photo ca. 1900. The Lewis Family, a large extended family, were a well known African American family who first established roots in Cambridge in the early 19th Century.
Census Year Total PopulationNumber of Black ResidentsPercent of Population
17902,115602.8%
18002,453251.0%
18102,32339*1.7%
18203,295531.6%
18306,072791.3%
18408,409770.9%
185015,215140**0.9%
186026,0603541.3%
187039,6348222.1%
188052,6691,5042.9%
189070,0281,9882.8%
190091,8863,8884.2%
1910104,8394,7074.5%
1920109,6945,3344.9%
1930113,6435,4194.8%
1940110,8794,8584.4%
1950120,7405,2804.4%
1960107,7165,6715.3%
1970100,3616,7836.8%
198095,32210,41810.9%
199095,80212,93013.5%
2000101,35512,07911.9%
2010105,16212,25311.7%
2020118,40812,52010.6%

*includes West Cambridge (1 person)
*includes 41 listed as Mulatto and 99 listed as Black

Citations:
1790, 1800, 1820, 1840, 1860, 1880, 1900, 1920, 1940, 1960, 1980, 2000: from Slavery and Its Aftermath in Cambridge by Charles Sullivan, Executive Director, Cambridge Historical Commission, 13 January 2021. Available here: https://www.cambridgema.gov/-/media/Files/citymanagersoffice/monumentsadvisorycommittee/Slavery_and_its_Aftermath_in_Cambridge.pdf.

1810: Total from column, “all other free persons except Indians not taxed,” in 1810 census

1830: Total from column, “free colored persons,” in 1830 census

1850: Counted total from race column in the 1850 census

1870: Census totaled from race column in the 1870 census. Column totaled as “colored” and includes Black and Mulatto. Ward 1: 87; Ward 2: 626; Ward 3: 9; Ward 4: 82; Ward 5: 18. Total 822.

1890: Compendium of the Eleventh Census: 1890, Part I Population, Department of the Interior, Census Office, 1892. Cambridge is on page 552. Available here: https://www.google.com/books/edition/Compendium_of_the_Eleventh_Census_1890_P/L2tVWSA9xUAC?hl=en&gbpv=1

1900-1910: Negro population in the United States, 1790-1915, edited by William Loren Katz, 1968. Available here: https://babel.hathitrust.org/cgi/pt?id=pst.000053752499&view=1up&seq=104&skin=2021&size=125&q1=cambridge1950: https://www2.census.gov/library/publications/decennial/1950/population-volume-2/38840572v2p21ch4.pdf.

1910-1930: Negroes in the United States, 1920-1932, by United States Department of Commerce, Bureau of the Census, 1935. Available here: https://babel.hathitrust.org/cgi/pt?id=uiug.30112047636300&view=1up&seq=83&size=125&q1=cambridge

1970: 1970 Census of Population, Characteristics of the Population, Massachusetts, 1973. Available here: https://www2.census.gov/prod2/decennial/documents/1970a_ma-01.pdf

1990: Comparison of Cambridge, MA. U. S. Census Short Form Results:
1980, 1990 & 2000
, Cambridge Community Development, 17 May 2004. Available here: https://www.cambridgema.gov/-/media/Files/CDD/FactsandMaps/PopulationData/Citywide/census_1980to2000_sf1_comp.pdf

2010: Profile of General Population and Housing Characteristics: 2010
Demographic Profile Data
, U.S. Census Bureau, 27 June 2011. Available here: https://www.cambridgema.gov/-/media/Files/CDD/FactsandMaps/PopulationData/Citywide/census_2010_sf1_profile.pdf

2020: Cambridge: Population and People, U.S. Census Bureau. Available here: https://data.census.gov/cedsci/profile?g=1600000US2511000

Cambridge Population: From Cambridge, Massachusetts Wikipedia Page, Demographics. Available here: https://en.wikipedia.org/wiki/Cambridge,_Massachusetts#Demographics

Tips for Researchers: Census’ American Fact Finder

Even though individual census records from the decennial census are made public only after 72 years to protect privacy rights, the Census makes available the latest census aggregate data on population, race and ethnicity, housing, income, education, businesses, and government.

Did you know that over the past 12 months 12.8% of children under the age of 18 live under the poverty level in Massachusetts, which is low compared to other states.  (Puerto Rico has the highest rate at 55.9%.)   Or that 1.8% of the United States population is over the age of 85, whereas 12.9% of the population is over the age of 65?  Or that there are 439,024 more women than men in the U.S.  Or that over the past 12 months 1,330 women who live in Cambridge gave birth and only 3 per 1,000 women were under the age of 19.

Explore American Fact Finder here.  Read Cambridge’s statistics for 2005-2009 here.