| 100% | ZOO | 3 | Philadelphia had the first one in the U.S. (1874) |
| 66% | LAT | 3 | Alaska has the highest one in the U.S.: Abbr. |
| 60% | VOTE | 4 | Have one's say in the U.S.A. |
| 59% | WORLDSFAIR | 10 | London had the first one in 1851 |
| 57% | SST | 3 | The U.S.S.R. had the first civilian one |
| 56% | CAR | 3 | One of 52 million in the U. S. |
| 55% | AHA | 3 | First Norwegian band to have a #1 hit in the US: Hyph. |
| 54% | ALT | 3 | Delaware has the lowest mean one in the U.S.: Abbr. |
| 54% | MALL | 4 | The largest one in the U.S. is in Bloomington, Minn. |
| 54% | DAM | 3 | The tallest one in the U.S. is California's Oroville |
| 54% | SPICEGIRLS | 10 | First British group since the Beatles to have two albums in the U.S. top 10 at the same time |
| 53% | AKITA | 5 | Helen Keller brought the first one to the U.S. |
| 53% | SHIP | 4 | One of the S's in U.S.S. |
| 53% | BILLS | 5 | Ones in the U.S., but not in Canada |
| 52% | PAINTEDDESERT | 13 | South Australia and Arizona in the US both have one |
| 52% | SLIMSHADY | 9 | "The Real ___," Eminem's first song to reach number one in the U.K, with a video that parodied several real-life celebrities: 2 wds. |
| 51% | YMCA | 4 | The first US one opened in Boston in 1851 |
| 51% | OBERLIN | 7 | First coeducational college in the U.S. |
| 51% | SOVIET | 6 | The first "S" in U.S.S.R. |
| 51% | RPI | 3 | First private engineering school in the U.S. |
| 51% | PHILLISWHEATLEY | 15 | First Black published poet in the U.S. |
| 50% | TEAMMASCOT | 10 | An eagle is the most common one in the U.S. |
| 50% | ATM | 3 | Device first deployed in the U.S. by Chemical Bank (1969) |
| 50% | WARRENGHARDING | 14 | U.S. president who, in 1922, became the first president to have his voice transmitted on the radio (3 wds.) |
| 50% | NCO | 3 | First-tier supervisor in the U.S.M.C. |
| 50% | OUR | 3 | Belonging to us, also the first word in the Lord's prayer |
| 49% | IVES | 4 | First major publisher of board games in the U.S. |
| 49% | ROSAPARKS | 9 | First woman to lie in honor in the U.S. Capitol |
| 49% | IDA | 3 | ___ B. Wells, civil-rights leader who founded one of the first Black women’s suffrage groups in the U.S. |
| 49% | DAVIS | 5 | Benjamin ___, first black general in the U.S. Army |