The Iowa Caucuses are a key moment in the presidential race. A candidate must win a majority of the votes in order to be declared the winner of the national election. Every four years, the first-in-the-nation Iowa Caucuses occur. It is the first major election event that many people will attend, and it will have a significant impact on the race for the White House.

This year, the Iowa Caucuses will be held on February 28, 2016. There are 34 different counties in Iowa, and each one of them is important to the outcome of the election.

To get a better understanding of the different areas of the state, we have compiled a list of the most important counties and the major cities within each county.