The Chicago region has particular Area Median Income limits. How might they compare to the AMI limits in California?

In Orange, Santa Barbara and San Diego counties, the threshold for a low-income single-person household will soon surpass $100,000 if current trends continue, according to data published by the California Department of Housing and Community Development in April.

They would join three Bay Area counties that already hit that bureaucratic threshold.

California defines income levels by how they compare with the area’s median income. But in areas with unusually low or high housing costs, those definitions are often tweaked to reflect the reality on the ground for residents. Therefore, someone earning $100,000 could be above the area’s median income line but be considered low-income because of the high cost of housing. A number of government programs use these income designations to determine who qualifies for benefits such as housing assistance…

Between 2020 and 2025, the threshold to be considered low-income rose 40% across Southern California’s ten counties, reflecting the rising cost of living across the region.

At the same time, median incomes — representing the middle, not the average — across the region rose 35%.

Similar concept applied to a very different housing situation yields very different AMI limits. California housing prices are higher to the degree that the median income needed is much higher than in the Chicago region. Someone from the Chicago region might see this story about California regions and think that the housing situations are barely comparable.

At the same time, both regions struggle to provide affordable housing. The income levels may differ as might the physical landscape but both share limited appetites from municipal officials, developers, and residents for affordable housing.

Thinking beyond these two regions, are there regions that are doing better at constructing more units of affordable housing? Where incentives and local guidelines and people encourage affordable housing? Where there is good housing available at more or all of the points of the AMI limits?