How can I look up where I will do my consular marriage-based green card interview?

For spouses seeking a green card from outside the United States, the easiest way to look up the location of their interview is on the State Department’s Reciprocity Schedule under the “Visa Issuing Posts” section. Applicants should look for the consulates that say “immigrant visas.” Note that some countries will have more than one consulate that handles immigrant visas.