https://www.census.gov/data/tables/time-series/dec/cph-series/cph-l/cph-l-128.html
1990 Census: Income Summary Measures, Places of 25,000-49,999, Ranked
1990 census
https://www.apha.org/policy-and-advocacy/public-health-policy-briefs/policy-database/2014/07/30/11/05/the-1990-census-adjusting-for-the-undercount
The 1990 Census: Adjusting for the Undercount
archived APHA policy statement
1990 censusadjusting
https://www.familysearch.org/en/search/collection/5000097
Ecuador, Census, 1737-1990
Images and indexed records from the National Archive of History in Ecuador.
ecuador census17371990
https://www.mass.gov/info-details/massgis-data-1990-us-census
MassGIS Data: 1990 U.S. Census | Mass.gov
1990 u s censusdatamass
https://www.census.gov/topics/population/genealogy/data/1990_census.html
Frequently Occurring Names from the 1990 Census
Apr 9, 2026 - Tabulation of names from the 1990 Census. These files contain only the frequency of a surname, no specific individual information.
from thefrequentlyoccurringnames1990