What is the current population of Waterloo?

Based on the latest 2020 data from the US census, the current population of Waterloo is 67,328. Waterloo, Iowa is the 550th largest city in the US.

What was the peak population of Waterloo?

The peak population of Waterloo was in 2000, when its population was 68,766. In 2000, Waterloo was the 411th largest city in the US; now its fallen to the 550th largest city in the US. Waterloo is currently 2.1% smaller than it was in 2000.

How quickly is Waterloo shrinking?

Waterloo has shrunk 2.0% since the year 2000. Waterloo, Iowa's growth is extremely below average. 90% of similarly sized cities are growing faster since 2000.

What county is Waterloo, Iowa in?

Waterloo is located entirely in Black Hawk County.

Population History

Year Population Rank in US
2019 67,328 550
2018 67,798 537
2017 67,587 535
2016 67,934 521
2015 68,460 512
2014 68,364 507
2013 68,366 498
2012 68,297 491
2011 68,365 483
2010 68,406 473
2009 66,761 484
2008 66,281 483
2007 65,941 476
2006 66,230 467
2005 66,514 462
2004 66,880 447
2003 67,100 441
2002 67,667 432
2001 68,387 419
2000 68,766 411
1990 66,732 353

Similarly Sized Cities In US

US Rank Name Population Growth
2000-2019
540 Union City, New Jersey 67,982 1.3%
541 West Des Moines, Iowa 67,899 43.9%
542 South San Francisco, California 67,789 11.8%
543 Yorba Linda, California 67,644 14.4%
544 Conway, Arkansas 67,638 54.8%
545 Lodi, California 67,586 17.5%
546 Palatine, Illinois 67,482 1.7%
547 Ankeny, Iowa 67,355 144.1%
548 Mount Vernon, New York 67,345 -1.5%
549 Rowlett, Texas 67,339 49.2%
550 Waterloo, Iowa 67,328 -2.0%
551 Lakeville, Minnesota 67,317 54.4%
552 Alpharetta, Georgia 67,213 44.2%
553 Jackson, Tennessee 67,191 12.1%
554 Yuba City, California 67,010 31.1%
555 Oshkosh, Wisconsin 67,004 5.7%
556 Victoria, Texas 66,916 10.5%
557 Johnson City, Tennessee 66,906 19.4%
558 Redondo Beach, California 66,749 5.1%
559 Tamarac, Florida 66,721 19.2%
560 Laguna Niguel, California 66,385 5.6%

Similarly Sized Cities In Iowa

US Rank Name Population Growth
2000-2019
207 Cedar Rapids 133,562 9.6%
307 Davenport 101,590 3.4%
419 Sioux City 82,651 -2.7%
474 Iowa City 75,130 19.5%
541 West Des Moines 67,899 43.9%
547 Ankeny 67,355 144.1%
550 Waterloo 67,328 -2.0%
564 Ames 66,258 30.1%
605 Council Bluffs 62,166 6.5%
667 Dubuque 57,882 0.3%
868 Urbandale 44,379 50.4%
959 Cedar Falls 40,536 11.9%
964 Marion 40,359 51.9%
1057 Bettendorf 36,543 16.7%

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