The Marvel sequel, which set a new US record for an April release last week, took $41.4 million, adding to the previous week’s haul of $96 million.
Animated adventure Rio 2 was close behind, raking in $39 million on its debut, according to early estimates.
Low budget horror Oculus and football drama Draft Day were third and fourth.
Oculus took $12 million – more than double its $5 million budget – while Draft Day, starring Kevin Costner and directed by Ivan Reitman, took $9.8 million.
Globally, The Winter Soldier also continued to fly, taking $60.6 million over the weekend.
Captain America sequel has made nearly $477 million globally since its release internationally three weeks ago. That figure has already surpassed the $370 million total for 2011’s Captain America: The First Avenger.
Teen Sci-Fi movie, Divergent, took fifth position, adding $7.5 million in its fourth week to bring its cumulative total to $124.9 million.
Lionsgate announced last week that the third installment in the series will be split into two releases, one to open in March 2016 and one in March 2017. The second film will be released in 2015.
North American box office Top 5:
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