Published by Instant Press on behalf of Fight For A Living Wage.
Housing drives nearly all of the cost-of-living spread between American cities. Groceries, utilities and consumer goods vary modestly from metro to metro, often by single-digit percentages. Housing varies by multiples, and childcare runs a distant second. If you are comparing two cities, the rent or mortgage difference will usually swamp every other line in the budget combined, which means most city comparison tools are measuring one thing with extra steps.
What follows is the sourced national picture, the reason the spread concentrates where it does, and how to pull a figure for your own county rather than relying on a national average.
The national anchors
Median household income: about $80,000. The U.S. Census Bureau reported this for 2023. Every ratio below uses it as the denominator.
Median home sale price: roughly $400,000 to $420,000 in 2024. National Association of Realtors and Census figures. Against median income, that is close to five times. The same ratio sat near three in the 1980s, which is the single largest change in the household budget over that span.
Center-based childcare: commonly $10,000 to $17,000 or more per child per year. Child Care Aware. For a household with two children in care, this line can exceed the mortgage.
Employer family health premium: about $25,000 per year in total, with the worker share above $6,000. KFF, 2024. Premiums are set largely by employer and plan rather than by city, so this line varies less geographically than people expect.
Average new-car payment: about $730 to $740 per month; used about $520. Edmunds and Experian figures for 2024. Transportation costs do vary by metro, mostly through whether a household can avoid owning a car at all.
Federal minimum wage: $7.25 per hour, unchanged since 2009. U.S. Department of Labor. Full time and year round, that is $15,080 before taxes. Set against the childcare range above, the arithmetic fails in every metro in the country, not just the expensive ones.
Medical debt: at least $220 billion owed, with roughly 100 million adults carrying some form of health care debt. KFF analysis of Census survey data published in 2022 reflecting 2021, and a KFF and NPR investigation in 2022. These are 2021 and 2022 figures.
Student loans: roughly $1.7 to $1.77 trillion outstanding, averaging about $38,000 per borrower. Federal Reserve consumer credit release and the Education Data Initiative.
Why housing dominates the spread
Food, clothing and manufactured goods move through national and international supply chains, so their prices converge. A box of cereal costs close to the same in Tulsa and Seattle. Housing cannot be shipped. Its price reflects local land, local construction costs, local permitting and local demand, none of which equalize across markets.
Childcare behaves similarly, because it is labor delivered in person at a regulated staff-to-child ratio. Wages for that labor track the local cost of living, which is itself mostly housing, so childcare inherits the housing spread at one remove.
Health insurance runs the other way. Premiums are negotiated between employers and insurers, and plan design matters more than geography, so the KFF national figure travels reasonably well.
Getting your own city’s number
National averages are the wrong tool for a relocation decision. Two sources give you local figures with documented methods.
The MIT Living Wage Calculator builds a required income county by county, pricing housing, food, childcare, medical care, transportation, taxes and other necessities separately, then reporting the hourly wage a given household composition needs. It is at livingwage.mit.edu. Because it reports by household type, it shows something the aggregates hide: the required wage for a single adult and for one adult with two children diverge sharply, and the divergence is almost entirely childcare and the larger housing unit.
The Bureau of Labor Statistics publishes metro-level Consumer Price Index series for major metropolitan areas, along with regional indexes and the category detail beneath each. Those series tell you how fast prices are moving in a given metro rather than the absolute level, which is the better question if you already live there. The data is at bls.gov.
For the income side of the ratio, the Census Bureau publishes median household income by state, county and metro area at census.gov. Pairing local income against local housing cost gives you the ratio that matters, and it is frequently much worse than the national five times figure in coastal metros and better than it in parts of the Midwest and South.
The comparison most tools get wrong
Cost-of-living calculators typically return a single index number: this city is 23 percent more expensive than that one. The number is an average across categories, and averaging is what destroys the information.
A household moving for a job needs the line items, not the composite. A 40 percent housing increase paired with flat groceries and no change in premiums is a different decision from a uniform 15 percent rise, even if the composite index reads the same. Whether the destination allows the household to drop a car matters more than most of the index, given the payment figures above.
Fight For A Living Wage, a nonpartisan 501(c)(3) grassroots organization, describes the problem as affordability across housing, health care, childcare, food, transportation and education rather than as wages alone. The geographic data supports that framing: the categories that separate an affordable city from an unaffordable one are housing and childcare, and neither responds to a wage change by itself.
The short version
Compare housing cost against local median income first, childcare second, and transportation third if car ownership is in question. Everything else is noise at the margins. The national figures above give you the baseline, and the county-level tools give you the answer for where you live.