GreatSchools is an American national nonprofit organization that provides information about PK-12 schools and education.

The website provides ratings and comparison tools based on student growth, college readiness, equity, and test scores for public schools in the U.S.[1] As of July 2017[update], the GreatSchools database contains information for more than 138,000 public, private, and charter schools in the United States.

Despite these adjustments to the methodology, the ratings continue to generate criticism among parents and education stakeholders for their role in housing choices and reliance on indicators known to be associated with student race and income.

[14] For example, real-estate websites like Zillow and Redfin allow for prospective homeowners to filter their searches based on school quality.

[18] GreatSchools awarded 452 Illinois public schools — 66% of which serve a high percentage of students from low-income families — its inaugural Thrive Award, which was based on schools achieving a designated threshold of success across the five areas of the 5Essentials Survey and therefore indicating they are "well-organized for improvement.