In 43 of the 45 metros with complete data, the salary at which median rent hits 30% of gross income sits below the metro’s median household income. The 30% affordability line is a problem for below-median earners in most of America - but in two metros it is a problem for the typical household, because the breach point sits above the median income itself.
How we measured it
The breach point is the salary where a metro stops working under the 30% rule: median rent times 12 months, divided by 0.30. Below that salary, median rent takes more than 30% of gross income; above it, the metro clears the standard affordability test. Rent and median household income come from the Census American Community Survey fields in the dataset, covering 45 of the 50 metros - five lack complete rent data and are excluded. The formula, sources, and cleaning rules are documented on the methodology page.
A quick sanity check on the arithmetic: rent equal to exactly 30% of gross means the breach salary is always 40 times the monthly rent. $1,000 of rent implies a $40,000 floor.
The ten highest salary floors
| Rank | Metro | Median rent | Breach salary | Median household income | Rent as % of median income |
|---|---|---|---|---|---|
| 1 | San Jose, CA | $2,617 | $104,680 | $141,565 | 22.2% |
| 2 | San Francisco, CA | $2,419 | $96,760 | $141,446 | 20.5% |
| 3 | San Diego, CA | $2,223 | $88,920 | $104,321 | 25.6% |
| 4 | Boston, MA | $2,093 | $83,720 | $94,755 | 26.5% |
| 5 | Seattle, WA | $1,998 | $79,920 | $121,984 | 19.7% |
| 6 | Washington, DC | $1,900 | $76,000 | $106,287 | 21.5% |
| 7 | Los Angeles, CA | $1,879 | $75,160 | $80,366 | 28.1% |
| 8 | New York, NY | $1,779 | $71,160 | $79,713 | 26.8% |
| 9 | Denver, CO | $1,770 | $70,800 | $91,681 | 23.2% |
| 10 | Sacramento, CA | $1,694 | $67,760 | $83,753 | 24.3% |
San Jose’s floor is the highest in the dataset by $7,920: a renter there needs $104,680 of gross salary before a $2,617 median rent falls to 30% of income. That is 2.73 times the floor in Wichita. Yet look at the last column - in San Jose, Seattle, and San Francisco, median rent takes barely a fifth of the typical household’s income, because incomes in those metros are as high as the rents.
The ten lowest salary floors
| Rank | Metro | Median rent | Breach salary | Median household income | Rent as % of median income |
|---|---|---|---|---|---|
| 36 | Indianapolis, IN | $1,112 | $44,480 | $62,995 | 21.2% |
| 37 | Albuquerque, NM | $1,085 | $43,400 | $65,604 | 19.8% |
| 38 | Oklahoma City, OK | $1,083 | $43,320 | $66,702 | 19.5% |
| 39 | Tucson, AZ | $1,079 | $43,160 | $54,546 | 23.7% |
| 40 | Louisville, KY | $1,069 | $42,760 | $64,731 | 19.8% |
| 41 | El Paso, TX | $1,041 | $41,640 | $58,734 | 21.3% |
| 42 | Detroit, MI | $1,034 | $41,360 | $39,575 | 31.4% |
| 43 | Milwaukee, WI | $1,033 | $41,320 | $51,888 | 23.9% |
| 44 | Tulsa, OK | $998 | $39,920 | $58,407 | 20.5% |
| 45 | Wichita, KS | $960 | $38,400 | $63,072 | 18.3% |
Wichita is the cheapest metro in the dataset to rent in by a clear margin: a $38,400 salary clears the 30% test, and median rent takes just 18.3% of the median household income. The five lowest floors all sit under $42,000 - and four of the five clear the test comfortably at typical local incomes. Detroit is the exception, and it is the whole story of the next section.
Where the typical household already breaches
| Metro | Breach salary | Median household income | Rent as % of median income |
|---|---|---|---|
| Miami, FL | $66,280 | $59,390 | 33.5% |
| Detroit, MI | $41,360 | $39,575 | 31.4% |
| Los Angeles, CA | $75,160 | $80,366 | 28.1% |
| New York, NY | $71,160 | $79,713 | 26.8% |
| Boston, MA | $83,720 | $94,755 | 26.5% |
Miami and Detroit are the only metros where the breach salary exceeds the median household income - where the 30% line breaks not just for the poor but for the median household. The two arrive at the same failure from opposite directions. Miami’s median rent ($1,657) is mid-pack, but its median income ($59,390) is among the lowest of the big metros, so rent takes 33.5% of the typical income. Detroit’s rent is the fourth-lowest in the dataset, but its income is lower still. In 11 of the 45 metros, median rent takes at least 25% of the median income.
The comparison worth running before any move is rent against your occupation’s local pay, not the headline rent - the Miami cost-of-living page and Detroit cost-of-living page break out the components, and San Jose versus Wichita shows how much the floor itself can move for the same job.
Use the floor as a filter
The breach salary is a fast first pass on any offer: multiply the monthly rent by 40 and compare the result to the gross salary. If the salary is under the floor, either the rent has to give or the budget’s other 70% has to absorb it. For everything beyond rent, the cost-of-living calculator prices out a full basket between any two metros.
Data: Census ACS-based median rent and median household income fields, 2026 vintage - 45 metros of 50 with complete rent and income data. The 30% threshold is the conventional affordability line applied uniformly here. Figures are estimates from public data, not personalised financial advice.
