In 1991, Congress designated March as Irish American Heritage month, but celebrations of Saint Patrick's Day date back to the 1600s. Here's a look at how many people in the U.S. have ties to the ...

Here's a look at how many people in the U.S. have ties to the Emerald Isle and where they have resettled since their ancestors arrived in America. The states with the highest rate of Irish ...

In 1991, Congress designated March as Irish ... Isle and where they have resettled since their ancestors arrived in America. The U.S. Census Bureau collects data on reported heritage of the ...