Environmental Working Group President Cook said the farm subsidy program has "started to rot."
"The way subsidies are supposed to work is when prices dip or there's a weather problem we provide assistance," Cook said. "But now the system is really corrupted, and what we do now is we pay farmers or anyone who owns land who is eligible for the payments. Now we pay whether there's a need or not."
Two other Republican members with Tea Party support also have received farm subsidies.
Rep. Tom Latham of Iowa has four farms and he's received a little more than $1 million, according to the report.
The Racota Valley Ranch, the family ranch of South Dakota's only congresswoman, Rep. Kristi Noem, received more than $3 million from 1995 to 2008.
ABC News asked candidate Noem in September about farm subsidies and if she saw them as a place to cut waste.
"I think there has been, in the past, and there is some potential there," she said. "I think we need to make sure the dollars are going where they are intended to go.
"You know, the United States engages in a cheap food policy and we have got a lot of government regulations that come in and impact markets and prices, so we need to make sure we are giving our farmers an opportunity to work on a level playing field with other countries and market our products," she added. "But we need to make sure we are spending our taxpayer dollars correctly as well."