However, the number of households with same-sex couples was rising years before Obergefell v. Hodges. It was even rising years before 2013. States started legalizing same-sex marriage in the mid-2000s. In 2008, the Census changed the methodology for counting same-sex households and marriage rates rose accordingly. The number of same-sex married couples has increased each year except between 2018 and 2019.
Montana had the largest increase, 466.5%, or more than five times the share it had in 2014. Montana started with one of the lowest counts, however — 540 married households in 2014 — which grew to 3,059 by 2023. Nevada followed at 361.5%, and Georgia was third at 258.9%.