“State or province” is one of the patterns that you can select on the Match panel. Use this pattern to make a field match the name or code of a state or province from a list of specific states or all states from specific countries.
Allow the field to match the two-letter codes of the selected states and provinces.
Allow the field to match the full names of the selected states and provinces.
Select the countries of which you want to match the states or provinces. You have to select at least one country.
Select the states and provinces of which this field should match the codes and/or names. Selecting none of the states and provinces is the same as selecting all of them.
This list only shows the states and provinces of the countries you have selected in the list of countries. The field never matches states or provinces of countries that you didn't select.