We don't have the exact data but few years back, statistics shows USA has the highest, followed closed by UK and Denmark and Puerto Rico with more than 4 couples in 1000.

Urbanisation and female reformers & activists play a part in this statistics. We can see the examples in Arnold Schwarzenegger's and Tiger Woods' case.

Last I saw statistics, the Unites States has the largest percentage of divorces.

I think all countries have marital problems because marriages are made up of people who have different needs and desires. However, there are many countries that offer couples with marital problems more freedom in how they deal with them. The ability to divorce is one way that some countries offer more choices to people than others. Marital problems will always occur, and what matters is how the people involved work through them.

I wanted more of a list of countries with high divorce rates, and where the U.S. stands

IT isn't all the USA but the highest place in the world is Vatican City

The United States used to have the highest divorce rate, but divorce has declined enough that the U.S. is now surpassed by several countries. According to the United Nations Demographic Yearbook the countries with the highest rates (measured as divorces per 1,000 people) are:

1. Russia (5.0)
2. Belarus (3.8)
3. Ukraine (3.6)
4. Moldova (3.5)
5. Cayman Islands & United States (3.4)
7. Bermuda (3.3)
8. Cuba (3.2)
9. Lithuania (3.1)
10. Czech Republic (3.0)

As of 2008 it was estimated that 40% of all marriages in the United States had ended in divorce.

When you see the actual statistics, it's clear in this answer that the United States is holding its own in the universal divorce rate.