See main article: 2019 Fed Cup Americas Zone.
Pool A of the 2019 Fed Cup Americas Zone Group I was one of two pools in the Americas zone of the 2019 Fed Cup. Four teams competed in a round robin competition. The top team and the bottom team proceeded to their respective sections of the play-offs. The top team played for advancement to the World Group II Play-offs. The bottom team faced potential relegation to Group II.[1]
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-team ties, head-to-head records; 4. in three-team ties, (a) percentage of sets won (head-to-head records if two teams remain tied), then (b) percentage of games won (head-to-head records if two teams remain tied), then (c) Fed Cup rankings.