U.S. Demographic Maps, Census 1790-2020+ -- "Explore over 500,000 data indicators and over 220 years of data for the United States from present to 1790, including all Decennial Censuses, American Community Surveys and many other datasets."
U.S. Religion Maps
Provides current data about people, households, and housing.
EASI starts with Census Bureau data, but incorporates other sources [2010 Decennial Census, American Community Survey (5 year version), Population Estimates Program, ACS Public Use Microdata Sample, US Postal Service mailable households, etc.] to estimate at the block group level for some data not available from the Census. EASI also provides current year and five year projections.