According to Wikipedia, only Sweden ranks higher than the US in the divorce stakes. India ranks 1st with a measly 1.1 percent. Also topping the list; Sri Lanka, Macedonia, Bosnia and Turkey.

It's worth noting that some of the information presented here seems to contradict official sources (for intance, the Divorce Rate in the UK is currently around 25% according to 2005 statistics).

Divorce Rates (%) by Country

India     1.1
Sri Lanka     1.5
Republic of Macedonia     5.0
Bosnia and Herzegovina     5.0
Turkey     6.0
Armenia     6.0
Georgia     6.6
Italy     10.0
Azerbaijan     10.3
Albania     10.9
Israel     14.8
Spain     15.2
Croatia     15.5
Greece     15.7
Singapore     17.2
Poland     17.2
Romania     19.1
Slovenia     20.7
Bulgaria     21.1
Switzerland     25.5
Portugal     26.2
Slovakia     26.9
Moldova     28.1
Latvia     34.4
Canada     37.0
Hungary     37.5
Netherlands     38.3
France     38.3
Lithuania     38.9
Germany     39.4
Iceland     39.5
Ukraine     40.0
Norway     40.4
United Kingdom    42.6
Russia     43.3
Czech Republic     43.3
Austria     43.4
Belgium     44.0
Denmark     44.5
Estonia     46.7
Luxembourg     47.4
Finland     51.2
Belarus     52.9
United States     54.8
Sweden     54.9

For more information on Divorce Rates is available here