Idaho is east of Oregon and Washington. Boise is the capital and most populous city in the U.S. state of Idaho.
That would be Multnomah county, though smallest in area of the 36 Oregon counties, it is the most populous as its county seat, Portland, is the state's largest city. In 2010, the county had a population of 735,334.
Oregon's population is estimated to have been 3,745,555 on July 1, 2007, which represents an increase of 324,056 (9.5 percent) from the April 1, 2000 Census count, and 54,950 from the 2006 estimate. Of this number; Portland is the most populous city, with 568,380 people.
Chicargo is the third most populous city in the USA
Yes it is Italy's most populous city.
Jacksonville is the most populous city in Florida.
New Orleans is a city, and it is the most populous city in the state of Louisiana.
The most populous is Toronto, followed by Montreal, then Calgary. Ottawa, the capital, is the fourth most populous.
Chicago is the third most populous city following New York City and Los Angeles. Houston is the fourth most populous city.
Kyiv is the most populous city in all of eastern europe
The most populous city in North America is Mexico City, in Mexico. It has a population of over 21 million people.
The most populous city is Omaha, with a population of 421,570 at the 2012 census.