Possible Data Sources

Here are some popular data sources that you could use as inspiration for your projects. 

Compilations of Popular Sources: 

https://www.kdnuggets.com/2017/12/big-data-free-sources.html

https://www.columnfivemedia.com/100-best-free-data-sources-infographic

https://www.kaggle.com/

Health:

Immunizations, Vaccines, and Biologicals: https://www.who.int/immunization/monitoring_surveillance/data/en/

Polio Immunization coverage estimates by country: http://apps.who.int/gho/data/node.main.A831?lang=en

https://www.unicef.org/statistics/ - UNICEF

https://www.healthdata.gov/ - Health data 

Civic Sources 

https://www.data.gov/

https://www.congress.gov (Bills cycle, congressional activity etc)

http://clerk.house.gov/public_disc

https://www.senate.gov/legislative/lobbyingdisc.htm#lobbyingdisc=fec

https://www.oge.gov

https://cbo.gov/cost-estimates

https://www.whitehouse.gov/

https://www.archives.gov/presidential-libraries

https://www.archives.gov/presidential-libraries/archived-websites

https://www.gpo.gov/fdsys/browse/collection.action?collectionCode=CPD

https://www.opensecrets.org/elections/

http://politicalpartytime.org

https://www.fcc.gov

https://www.fda.gov

https://www.epa.gov

https://www.sec.gov

https://www.ssa.gov