• The Consumer Price Index measures the overall change in consumer prices based on a representative basket of goods and services over time.

  • The CPI is the most widely used indicator of inflation, closely monitored by politicians, financial markets, businesses and consumers.
  • The widely cited CPI is based on an index covering 93% of the US population, while a related index covering employees and clerical workers is used to adjust federal cost of living benefits.
  • The CPI is based on approximately 94,000 price quotations collected monthly from approximately 23,000 retail and service establishments and 43,000 rental units.
  • Housing rents are used to estimate the change in the value of housing, including owner-occupied housing, which accounts for almost a third of the CPI.