New York State Data Center http://www.esd.ny.gov/NYSDataCenter.html
New York City Official Homepage http://www.nyc.gov
NYC Map Portal http://gis.nyc.gov/doitt/nycitymap/
Put in a street address and get thematic maps about city life, education, elected official, health services and facilities, Public safety (police and fire), recreation, resident services, public transit.
NYC Census FactFinder http://gis.nyc.gov/census/
Provides quick and easy access to population information from the most recent U.S. Census.
Neighborhood statistics http://gis.nyc.gov/ops/mmr/address.jsp?app=MMR
A much grittier data set including HHS statistics on infant mortality and drug related deaths, restaurant inspections, Medicaid, child neglect, school attendance, education data, noise, potholes, and air quality. These are tied to the Mayor’s Management Report.
NYC Dept. of Health http://www.nyc.gov/html/doh/html/home/home.shtml
Health profiles with maps and statistics for neighborhoods.
Office of Immigrant Affairs http://www.nyc.gov/html/imm/html/news/news.shtml
Statistics are available on issues of immigration in New York City.
Dept. of City Planning Reference Resources