Rent is eating up a dangerous share of Californians' pay: This map shows how much

FRESNO, Calif. -- Ever hear of the financial advice that you should only spend one-third of your income on housing? For many Californians, that's just not possible.

In more than two-thirds of California zip codes, the typical family now spends at least 30% of its income on rent.

Explore every zip code in the embedded map below.

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The darker the shade of red on the map, the higher the percentage of residents' income that is being spent on rent.

Like most of the state, Central California is covered with dark shades of orange and even has spots lit up in dark red.

The areas where residents are paying a large amount of their income on rent are along the Central Valley's eastern region based on data from 2018.

One of those zip codes is in Mariposa County (95306), which includes Catheys Valley, where residents pay 51% of their income on rent every month. In 93653 in Madera County, people are paying 48% of their income on rent. The median rent for the area is $1,161.

Further south, in Terra Bella, the median rent is $794, which is lower compared to other parts of the Central Valley. However, residents in Terra Bella are paying 49% of their income on rent.

RELATED: Fresno ranks 2nd among U.S. cities in fastest rise in rent prices

Meanwhile, in Fresno, 93703 takes up parts of central and east central Fresno, and it's where residents are putting a high percentage of their income toward rent compared to the rest of the city. The median rent is about $913, and the average resident pays 45% of their income on it.

93720 in northeast Fresno had the lowest percentage in the city, 29%. Income levels are higher in this area, and the median rent is $1,459.

There were some lighter shades over parts of the Central Valley. In an area north of Clovis in Fresno County (93619), residents pay 22% of their income on rent.

The map in this story was created as part of ABC Owned Television Stations' "California Dreaming" five-part series, which explores how the issues of affordability, wildfires, earthquakes and more have reinvented the California dream.

See a sneak peak of the series in the video player at the top of this story or stream all five episodes on our connected TV apps (Roku, Amazon Fire TV, Apple TV, Android TV).