| 601 | Vernon Middle School | Marion | Marion Independent School District | 647 | 587 | -9.3% |
| 602 | Loess Hills Elementary | SIOUX CITY | Sioux City Comm School District | 638 | 578 | -9.4% |
| 603 | South Tama County Middle School | Toledo | South Tama County | 456 | 413 | -9.4% |
| 604 | Harding Middle School | Cedar Rapids | Cedar Rapids Comm School District | 784 | 710 | -9.4% |
| 605 | Underwood High School | Underwood | Underwood Comm School District | 273 | 247 | -9.5% |
| 606 | Brookview Elementary School | West Des Moines | Waukee Comm School District | 654 | 592 | -9.5% |
| 607 | Collins-Maxwell Elementary School | Collins | Collins-Maxwell Comm School District | 201 | 182 | -9.5% |
| 608 | Harlan Primary | Harlan | Harlan Comm School District | 378 | 342 | -9.5% |
| 609 | Panorama High School | Panora | Panorama Comm School District | 243 | 220 | -9.5% |
| 610 | Helen Lemme Elementary School | Iowa City | Iowa City Comm School District | 376 | 340 | -9.6% |
| 611 | George Washington Middle School | Dubuque | Dubuque Comm School District | 647 | 584 | -9.7% |
| 612 | Irving Elementary School | Indianola | Indianola Comm School District | 438 | 395 | -9.8% |
| 613 | Parkersburg Elementary School | Parkersburg | Aplington-Parkersburg Comm School District | 234 | 211 | -9.8% |
| 614 | Garner-Hayfield-Ventura Elementary School | Garner | Garner-Hayfield-Ventura Comm School District | 423 | 381 | -9.9% |
| 615 | North Iowa Elementary Buffalo Center | Buffalo Center | North Iowa Comm School District | 252 | 227 | -9.9% |
| 616 | Bowman Woods Elementary School | Cedar Rapids | Linn-Mar Comm School District | 459 | 413 | -10.0% |
| 617 | Oskaloosa High School | Oskaloosa | Oskaloosa Comm School District | 702 | 632 | -10.0% |
| 618 | West Delaware High School | Manchester | West Delaware County Comm School District | 485 | 436 | -10.1% |
| 619 | Mount Pleasant Middle School | Mount Pleasant | Mount Pleasant Comm School District | 426 | 383 | -10.1% |
| 620 | Glenwood Senior High School | Glenwood | Glenwood Comm School District | 634 | 570 | -10.1% |
| 621 | Mason City High School | Mason City | Mason City Comm School District | 991 | 891 | -10.1% |
| 622 | South Central Calhoun High School | Lake City | South Central Calhoun Comm School District | 316 | 284 | -10.1% |
| 623 | Weeks Middle School | Des Moines | Des Moines Independent Comm School District | 766 | 688 | -10.2% |
| 624 | Adams Elementary School | Davenport | Davenport Comm School District | 555 | 498 | -10.3% |
| 625 | Capitol View Elementary School | Des Moines | Des Moines Independent Comm School District | 594 | 533 | -10.3% |
| 626 | Lambert Elementary School | Manchester | West Delaware County Comm School District | 501 | 449 | -10.4% |
| 627 | Pleasant Hill Elementary School | Des Moines | Des Moines Independent Comm School District | 269 | 241 | -10.4% |
| 628 | Horizon Elementary | Johnston | Johnston Comm School District | 684 | 613 | -10.4% |
| 629 | GMG Secondary School | Garwin | GMG Comm School District | 229 | 205 | -10.5% |
| 630 | Goodrell Middle School | Des Moines | Des Moines Independent Comm School District | 571 | 511 | -10.5% |
| 631 | Emerson Elementary School | Indianola | Indianola Comm School District | 443 | 396 | -10.6% |
| 632 | Emmetsburg High School | Emmetsburg | Emmetsburg Comm School District | 263 | 235 | -10.6% |
| 633 | Pekin Elementary School | Packwood | Pekin Comm School District | 345 | 308 | -10.7% |
| 634 | Jefferson Elementary School | Clinton | Clinton Comm School District | 421 | 376 | -10.7% |
| 635 | South Central Calhoun Elementary School | Rockwell City | South Central Calhoun Comm School District | 335 | 299 | -10.7% |
| 636 | Unity Elementary School | Sioux City | Sioux City Comm School District | 541 | 483 | -10.7% |
| 637 | Grinnell Community Middle School | Grinnell | Grinnell-Newburg Comm School District | 471 | 420 | -10.8% |
| 638 | Jesup Middle School | Jesup | Jesup Comm School District | 279 | 249 | -10.8% |
| 639 | South Tama County High School | Tama | South Tama County | 472 | 421 | -10.8% |
| 640 | Shenandoah Middle School | Shenandoah | Shenandoah Comm School District | 314 | 280 | -10.8% |
| 641 | GMG Elementary School | Green Mountain | GMG Comm School District | 304 | 271 | -10.9% |
| 642 | Fort Dodge High School | Fort Dodge | Fort Dodge Comm School District | 1,145 | 1,020 | -10.9% |
| 643 | New Hampton High School | New Hampton | New Hampton Comm School District | 357 | 318 | -10.9% |
| 644 | Wood Middle School | Davenport | Davenport Comm School District | 706 | 629 | -10.9% |
| 645 | Danville Elementary School | Danville | Danville Comm School District | 407 | 362 | -11.1% |
| 646 | Southeast Elementary School | Ankeny | Ankeny Comm School District | 658 | 585 | -11.1% |
| 647 | Coon Rapids-Bayard 6-12 Attendance Center | Coon Rapids | Coon Rapids-Bayard Comm School District | 241 | 214 | -11.2% |
| 648 | Mount Ayr Elementary | Mount Ayr | Mount Ayr Comm School District | 316 | 280 | -11.4% |
| 649 | East Marshall Elementary School | Laurel | East Marshall Comm School District | 273 | 242 | -11.4% |
| 650 | Fisher Elementary School | Marshalltown | Marshalltown Comm School District | 416 | 368 | -11.5% |