This document summarizes and compares different measures of inflation and cost of living in the United States. It discusses the Consumer Price Index (CPI) produced by the Bureau of Labor Statistics, the Consumer Expenditure Survey conducted by the Census Bureau, and other inflation measures like the GDP deflator. It also describes several sources that provide cost of living comparisons between geographic areas, including the ACCRA Cost of Living Index, ERI Cost of Living Analysis, and HUD Fair Market Rents. The document advises readers to consider the methodology and geographic coverage when choosing a data source for cost of living comparisons.