It's more expensive to buy a home instead of rent in South Florida, with workers and buyers in Miami-Dade County bearing the hardest costs in the region.

There, buying a median-priced home not only takes more than half of a household's median income, but the median income itself is less than in Broward and Palm Beach counties, and in the U.S. overall, according to Move Inc.-operated real estate information website Realtor.com.

It took this year 65.5 percent of the median $46,205 household income to buy a median-priced home in Miami-Dade, Realtor.com data show. The difference between buying and renting is most pronounced in Miami-Dade County as well, with buyers spending 26.8 percentage points more on buying than renting.