How States Handle Drug Use During Pregnancy
Across the country, hundreds of pregnant women and new mothers have been accused of child abuse or other crimes when they or their newborns tested positive for controlled substances. Laws on drug testing of infants and new mothers vary, but the stakes are always high. Here is a survey of state laws.
The Stories of Everyday Lives, Hidden in Reams of Data
Data journalists use data to tell stories that help readers make better choices and live better lives.
Debt By Degrees
Use our interactive database to search new federal data on almost 7,000 schools in the U.S. to see how well they support their poorest students financially.
Homeschooling Regulations by State
Homeschooling has been legal throughout the United States for about 25 years, but regulations vary dramatically across the country. Use our map to compare how laws vary by state.
Treatment Tracker
We’ve updated our database of Medicare’s payments to individual doctors and other health professionals serving the 49 million seniors and disabled in its Part B program.
Nonprofit Explorer
We’ve updated our Nonprofit Explorer app with over 600,000 new tax filings from FY2013. Use the database to search over 1.8 million tax returns from tax-exempt organizations.
Introducing FEC Itemizer: A Tool to Research Federal Election Spending
Today we’re launching a new interactive database that makes it easier to get detailed federal campaign finance data.
FEC Itemizer: Browse Federal Campaign Finance Filings
Itemizer allows you to browse electronic campaign finance filings from the Federal Election Commission and to see individual contributions and expenditures reported by committees raising money for federal elections.
Surgeon Scorecard
We calculated complication rates for surgeons performing one of eight elective procedures under Medicare, carefully adjusting for differences in patient health, age and hospital quality. Use this database to know more about a surgeon before your operation.
Bet Big, Then Go Short
Governments that borrow money to fund their pensions often pay less into their pension funds in future years than they’re supposed to. Here’s how the 20 biggest pension bonds deals since 1996 have worked out.
New Dollars for Docs
Pharmaceutical and medical device companies paid billions to doctors from late 2013 through 2014, new data shows. Search for your doctor in our interactive database.
On Repeat: How to Use Loops to Explain Anything
From animated gifs to looping interactives, we're seeing more and more ways of presenting ideas, explaining processes, and just capturing small moments in endless, repeating sequences. Here's how loops work and how you can use them.
Welcome to Fabulous Las Vegas, While Water Supplies Last
How 40 years of unchecked growth may eventually bust Las Vegas’ water supply.
NSA Surveillance Lawsuit Tracker
A federal appeals court recently ruled that the National Security Agency’s bulk collection of Americans’ phone records is illegal.
Antebellum Data Journalism: Or, How Big Data Busted Abe Lincoln
Horace Greeley, between about 1860 and 1865. Credit: National Archives and Records Administration, via Wikimedia Commons.
An 1848 investigative news story that relied on heavy data analysis snared big fish, including two future presidents.
The News Apps Team 
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Use ProPublica's data — cleaned, categorized and often created from multiple sources — in your reporting and research.