Statistics for Largest Cities by Watershed- North America

Click here to take the quiz!

River	Population	City	% Correct
Mississippi	2,150,706	St. Louis	95%
Rio Grande	803,086	El Paso	93%
St. Lawrence	8,608,208	Chicago	90%
Colorado	3,629,114	Phoenix	90%
St. Lawrence	3,797,090	Detroit	88%
St. Lawrence	5,429,524	Toronto	88%
Mississippi	2,734,203	Denver	85%
St. Lawrence	3,519,595	Montreal	85%
Columbia	1,849,898	Portland	85%
Colorado	1,866,011	Las Vegas	80%
Mississippi	2,650,890	Minneapolis	80%
St. Lawrence	1,780,673	Cleveland	78%
Mississippi	1,519,417	Kansas City	78%
Columbia	349,684	Boise	70%
Colorado	843,168	Tucson	70%
Rio Grande	1,460,200	Ciudad Juárez	68%
Columbia	387,847	Spokane	68%
Columbia	236,632	Salem	65%
Columbia	247,421	Eugene	60%
Nelson	1,237,656	Calgary	55%
Nelson	1,062,643	Edmonton	53%
Rio Grande	1,288,000	Monterrey	50%
Mississippi	1,733,853	Pittsburgh	50%
Nelson	711,295	Winnipeg	50%
Nelson	245,181	Saskatoon	45%
Nelson	214,631	Regina	40%
Rio Grande	932,600	Chihuahua	28%
Rio Grande	811,500	Saltillo	10%
Colorado	184,400	San Luis Río Colorado	8%
Colorado	249,400	Nogales	3%