Latest Data (2017)
Population 27,399
Nationwide Rank 1371

Quick Facts

Mason City, Iowa is the 1,371st largest city in the United States as of 2017.

Mason City, Iowa is a city.

Mason City, Iowa is currently 6.5% smaller than it was in 1990, the year of its peak recorded population.

Mason City, Iowa's growth is extremely below average. 87% of similarly sized cities are growing faster since 2000.

Mason City, Iowa Border Map

Similarly Sized Cities In US

US Rank Name Population Growth
2000-2017
1361 Maywood, California 27,586 -1.9%
1362 Windsor, California 27,548 19.4%
1363 Glen Cove, New York 27,500 3.1%
1364 Tualatin, Oregon 27,478 19.7%
1365 Rockledge, Florida 27,476 34.8%
1366 Lake Jackson, Texas 27,473 -0.1%
1367 Greenville, Texas 27,443 14.2%
1368 Shaker Heights, Ohio 27,440 -6.4%
1369 Imperial Beach, California 27,418 1.3%
1370 Wilmette, Illinois 27,418 -0.6%
1371 Mason City, Iowa 27,399 -6.0%
1372 Jeffersontown, Kentucky 27,395 3.3%
1373 Anderson, South Carolina 27,293 4.9%
1374 Marshalltown, Iowa 27,280 4.8%
1375 Plum, Pennsylvania 27,258 1.1%
1376 Huntley, Illinois 27,207 337.5%
1377 West Chicago, Illinois 27,182 13.8%
1378 Eureka, California 27,177 4.2%
1379 Allen Park, Michigan 27,156 -7.8%
1380 Lindenhurst, New York 27,153 -2.4%
1381 Belmont, California 27,140 8.2%

Similarly Sized Cities In Iowa

US Rank Name Population Growth
2000-2017
873 Urbandale 43,592 47.7%
918 Cedar Falls 41,570 14.8%
975 Marion 39,400 48.3%
1076 Bettendorf 35,813 14.4%
1371 Mason City 27,399 -6.0%
1374 Marshalltown 27,280 4.8%
1470 Clinton 25,480 -8.0%
1500 Burlington 25,022 -6.5%
1541 Ottumwa 24,454 -1.9%
1551 Fort Dodge 24,305 -7.5%
1584 Muscatine 23,782 4.7%
1708 Johnston 21,562 139.7%
1754 Coralville 20,881 37.2%
1773 Waukee 20,649 269.9%
1915 North Liberty 18,813 243.1%
1924 Altoona 18,699 78.9%
2056 Clive 17,172 32.1%
2176 Indianola 15,990 21.2%
2264 Newton 15,109 -3.1%

Demographics

Population History

Year Population Rank in US
2017 27,399 1,371
2016 27,430 1,360
2015 27,366 1,363
2014 27,458 1,350
2013 27,704 1,323
2012 27,823 1,300
2011 27,971 1,288
2010 28,079 1,274
2009 27,267 1,286
2008 27,346 1,268
2007 27,438 1,254
2006 27,583 1,233
2005 27,771 1,209
2004 27,999 1,192
2003 28,317 1,165
2002 28,411 1,150
2001 28,741 1,123
2000 29,167 1,096
1990 29,289 951