Trust and transparency

Methodology

How Everyday Cost Lab sources data, builds estimates, labels limitations, and schedules updates.

Our goal is not to produce one “correct” cost-of-living number. It is to show how a useful estimate is built, where it is weak, and which local inputs should replace national averages.

Primary data sources

Source	Use on this site
U.S. Bureau of Labor Statistics Consumer Expenditure Survey	National household spending baselines and category context.
U.S. Bureau of Economic Analysis Regional Price Parities	Same-year comparisons of overall and category price levels across metros.
U.S. Census Bureau American Community Survey	Housing-cost context, including gross rent and rent burden.
USDA Food Plans	Food-at-home benchmarks by age, sex, plan level, and household size.
CFPB and Consumer.gov	General budgeting and emergency-savings education.
AVMA	Pet ownership and veterinary-spending context.

Regional price parity interpretation

An RPP of 100 equals the U.S. average price level for that year. A value of 110 means the region’s price level was approximately 10% above the national average in the dataset. RPPs compare places within the same year. They are not designed to measure inflation over time.

City-page spending illustrations

City guides multiply 2024 BLS national average monthly categories by the relevant 2023 BEA metro category index. This produces an index-adjusted illustration, not a local household budget. The pages state this limitation next to the table.

Salary model

The salary calculator constructs a base household budget and applies metro category indexes. It uses a simplified gross-up formula rather than a tax engine. It does not account for filing status, state and local taxes, benefits, credits, retirement deductions, or actual wages.

Rent model

The rent tool compares a 30% gross-income screening benchmark with a residual cash-flow estimate after simplified taxes, debts, essentials, utilities, and savings. The lower figure becomes the suggested target.

Update schedule

Government source releases are reviewed at least annually. High-traffic calculator assumptions should be reviewed quarterly. A page may be updated sooner when a source methodology changes or a material error is reported.

Limitations

National averages may not represent a specific household.
Metro averages hide neighborhood variation.
Taxes, insurance, childcare, housing listings, and healthcare can change quickly.
Calculator defaults are starting points and should be replaced with actual quotes.