More Americans buy their groceries from dollar stores than from Whole Foods Market, according to a newly published report.

In its report, the Institute for Local Self-Reliance says the number of dollar stores — mom-and-pop shops as well as big national chains such as Dollar General, Dollar Tree and Family Dollar — jumped from 20,000 to 30,000 between 2011 and 2018.

In fact, there are now more dollar stores in the U.S. than there are Walmart and McDonald's locations combined.

Austin, Texas-based Whole Foods Market, by comparison, has just 474 U.S. stores.

In many smaller cities across the nation, the Institute for Local Self-Reliance said dollar stores have run locally owned grocers out of business. In Moville, Iowa, for instance, Chet's Foods saw business immediately drop 30 percent when a Dollar General store opened in 2016.

This year, Chet's Foods closed for good.

Within the next few years, the report suggests there could be as many as 55,000 dollar stores in the U.S., potentially leading to more closings and job losses.

While dollar stores are often cheaper than regular grocery stores, there are some trade-offs, according to the Institute for Local Self-Reliance. Packages are often smaller and the amount of fresh food available — dairy products, meat, fruits and vegetables — is typically extremely limited, if available at all.

One city, Tulsa, Okla., has even attempted to limit the number of dollar stores via an ordinance, the report says.