After this season broke viewership records, it's already been renewed for season 4. The Gilded Age 's third season had five weeks of continued growth (a 20% growth over last season) and also reached its highest-ever weekly viewership on HBO Max, when the fifth episode secured a series high of 4 million U.S. viewers, according to its Live+3 ratings.

On July 28, the head of HBO's drama series and films department confirmed the fourth season while praising Downton Abbey's Julian Fellowes for creating another prime example of “'can't-miss it' entertainment," this time set in 1880s New York and starring the likes of Carrie Coon, Christine Baranski, Audra McDonald, and Cynthia Nixon.