Australian Open semi-finalist Konta, 25, won her first WTA title on 25 July but missed out on the top 10 after a quarter-final defeat in the Rogers Cup on Friday.
British number two Naomi Broady climbed three spots to 81st, while there was no change for 67th-placed Heather Watson.
Wimbledon champion Andy Murray remains second in the men’s rankings.
Jo Durie is the last British woman to be ranked in the top 10, reaching a career-high fifth in 1984.
Konta, Watson and Murray are among those in the Great Britain squad for the Olympics, which start in Brazil on Friday.