The platform where the Census Bureau posts its data for use. You can get tables, maps, visualizations or other data about the population of the United States. This is the platform replacing American FactFinder
Data.gov is an online portal to share data from various government agencies, which can be downloaded and manipulated for public use and re-use. Data.gov enables the public to download datasets to conduct analysis, build web applications, and conduct research.
Provides data from surveys, public finance, and other statistical analyses for cities. Note the data only goes to 2012, so more useful for historical questions.
Easy access to the U.S. Census Bureau population information for New York City allowing you to search for specific locations and see surrounding areas on a map.
Source for public data generated by NYC agencies. Includes data on business, government, education, health, housing, public safety, transportation and more.
Information on state and local governments across the country. To be noted, it is from every 5 years, and the most recent is 2012 but this can give you information on what agencies or data is being used at state and local levels.