What is the longest river in the United States?

Mississippi
Missouri
Yukon
Rio Grande
The Missouri River is the longest river in North America. Having 2,341 mi (3,768 km), it is longer than the Mis­sis­sip­pi (2,202 mi 3,544 km). When combined with the lower Mis­sis­sip­pi River, it forms the world's third longest river system, after the Nile and Amazon.

Answers distribution

Mississippi
Missouri
Yukon
Rio Grande
answers
flagRepublic of Ireland
45%
41%
4%
8%
24
flagSpain
40%
40%
10%
10%
10
flagFrance
40%
40%
20%
0%
10
flagGermany
40%
38%
10%
11%
70
flagNorway
37%
37%
18%
6%
16
flagCanada
52%
36%
10%
0%
19
flagUnknown
53%
33%
11%
2%
45
flagIndia
44%
31%
3%
20%
29
flagthe United States
62%
29%
5%
2%
190
flagthe United Kingdom
53%
28%
10%
7%
119
flagPoland
59%
25%
8%
6%
3964
flagthe Netherlands
50%
21%
28%
0%
14
flagItaly
42%
19%
9%
28%
21
flagAustralia
83%
16%
0%
0%
12

Gender

men25%
women23%
Mississippi
63%
58%
Missouri
25%
23%
Yukon
7%
11%
Rio Grande
4%
6%

Details

Author: Shankar Kumar
Illustration: spisharam
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