The Cardinal (24-1), who won their two games by an average of 31 points, received all 70 first-place votes and 1,750 points from the national media panel. They are the first unanimous No. 1 since North Carolina on Dec. 22, 1997.
That victory was the third in a week over a ranked team for the Red Storm (20-6), who moved back into the Top 25 at No. 18.
Temple, which extended its winning streak to 13 games with victories over St. Bonaventure and Massachusetts last week, moved from eighth to fifth, matching the Owls' highest ranking since the second poll of the regular season.
The Top Ten ranking is the first for Iowa State since the Cyclones were seventh in the poll on Feb. 17, 1997.
St. John's has won seven straight games, the last three in a seven-day span over Syracuse, Connecticut and Duke. The Red Storm were ranked for two two-week periods earlier in the season, reaching as high as 15th.
The jump into the poll at No. 18 for an unranked team matches what Wake Forest did earlier this season, although the Demon Deacons remained in the Top 25 for three weeks before falling out and not returning.
Illinois (18-8), which beat Indiana 87-63 and lost 64-51 at Ohio State last week, was the week's other newcomers to the Top 25. The Fighting Illini were ranked for the first 10 polls of the season and fell out for six weeks until returning at No. 25.
The week's biggest drop was Auburn's fall from 11th to No. 19. The Tigers (21-6) lost road games to Alabama and Florida last week, the latter without preseason All-American Chris Porter, who was suspended by the NCAA pending a possible violation regarding an agent.
The ranking is thTigers' lowest since entering the Top 25 last season at No. 19. That was their first appearance in the poll since the 1995-96 season.
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