| 451 | West Grand Elementary and Middle School | KREMMLING | West Grand School District No. 1 | 267 | 262 | -1.9% |
| 452 | Roxborough Elementary School | LITTLETON | Douglas County School District No. Re 1 | 375 | 368 | -1.9% |
| 453 | Pueblo Charter School for the Arts & Sciences | PUEBLO | Pueblo School District No. 60 in the county of Pueblo and | 453 | 444 | -2.0% |
| 454 | Hulstrom K-8 | NORTHGLENN | Adams 12 Five Star Schools | 677 | 663 | -2.1% |
| 455 | Jordahl Elementary School | FOUNTAIN | Fountain School District No. 8 in the county of El Paso an | 535 | 524 | -2.1% |
| 456 | Omar D Blair Charter School | DENVER | School District No. 1 in the county of Denver and State of C | 801 | 783 | -2.2% |
| 457 | Crystal River Elementary School | CARBONDALE | Roaring Fork School District No. Re-1 | 455 | 445 | -2.2% |
| 458 | Pete Mirich Elementary School | LASALLE | Weld County Reorganized School District No. Re-1 | 366 | 358 | -2.2% |
| 459 | McLain Community High School | LAKEWOOD | Jefferson County School District No. R-1 | 357 | 349 | -2.2% |
| 460 | Singing Hills Elementary School | PARKER | ELIZABETH SCHOOL DISTRICT | 392 | 383 | -2.3% |
| 461 | Eagle Ridge Elementary School | LONE TREE | Douglas County School District No. Re 1 | 585 | 571 | -2.4% |
| 462 | Flagstone Elementary School | CASTLE ROCK | Douglas County School District No. Re 1 | 508 | 496 | -2.4% |
| 463 | Littleton Academy | LITTLETON | Littleton School District No. 6 in the county of Arapahoe | 466 | 455 | -2.4% |
| 464 | Longmont High School | LONGMONT | St. Vrain Valley School District No. Re1J | 1,299 | 1,268 | -2.4% |
| 465 | Delta Middle School | DELTA | Delta County Joint District No. 50 | 510 | 498 | -2.4% |
| 466 | DSST: Montview High School | DENVER | School District No. 1 in the county of Denver and State of C | 576 | 562 | -2.4% |
| 467 | Academia Ana Marie Sandoval | DENVER | School District No. 1 in the county of Denver and State of C | 420 | 409 | -2.6% |
| 468 | Knowledge Quest Academy | MILLIKEN | Weld County School District No. Re-5J | 406 | 395 | -2.7% |
| 469 | Sopris Elementary School | GLENWOOD SPRINGS | Roaring Fork School District No. Re-1 | 403 | 392 | -2.7% |
| 470 | James Irwin Charter Middle School | COLORADO SPRINGS | Harrison School District No. 2 in the county of El Paso an | 446 | 434 | -2.7% |
| 471 | Crown Pointe Charter Academy | WESTMINSTER | State Charter School Institute | 474 | 461 | -2.7% |
| 472 | Overland Trail Middle School | BRIGHTON | School District 27J | 597 | 581 | -2.7% |
| 473 | Weld Central Senior High School | KEENESBURG | Weld County School District RE-3J | 669 | 651 | -2.7% |
| 474 | Lincoln Middle School | FORT COLLINS | Poudre School District R-1 | 568 | 552 | -2.8% |
| 475 | James Irwin Elementary School - Astrozon | COLORADO SPRINGS | Harrison School District No. 2 in the county of El Paso an | 537 | 522 | -2.8% |
| 476 | Hygiene Elementary School | LONGMONT | St. Vrain Valley School District No. Re1J | 322 | 313 | -2.8% |
| 477 | Lena Archuleta Elementary School | DENVER | School District No. 1 in the county of Denver and State of C | 530 | 515 | -2.8% |
| 478 | Lansing Elementary Community School | AURORA | Aurora Joint District No. 28 of the counties of Adams and A | 377 | 366 | -2.9% |
| 479 | Falcon High School | PEYTON | El Paso County Colorado School District 49 | 1,207 | 1,172 | -2.9% |
| 480 | DSST: Montview Middle School | DENVER | School District No. 1 in the county of Denver and State of C | 477 | 463 | -2.9% |
| 481 | Escalante Middle School | DURANGO | Durango School District No. 9-R | 475 | 461 | -2.9% |
| 482 | Hunters Glen Elementary School | THORNTON | Adams 12 Five Star Schools | 506 | 491 | -3.0% |
| 483 | North Middle School | COLORADO SPRINGS | Colorado Springs School District No. 11 in the county of E | 656 | 636 | -3.0% |
| 484 | Bromley East Charter School | BRIGHTON | School District 27J | 1,252 | 1,214 | -3.0% |
| 485 | Colorado Virtual Academy | BYERS | Byers School District No. 32J | 508 | 493 | -3.0% |
| 486 | Van Arsdale Elementary School | ARVADA | Jefferson County School District No. R-1 | 507 | 492 | -3.0% |
| 487 | Falcon Elementary School of Technology | FALCON | El Paso County Colorado School District 49 | 328 | 318 | -3.0% |
| 488 | Pine Lane Elementary | PARKER | Douglas County School District No. Re 1 | 767 | 744 | -3.0% |
| 489 | Green Valley Elementary School | DENVER | School District No. 1 in the county of Denver and State of C | 737 | 714 | -3.1% |
| 490 | Pikes Peak School Expeditionary Learning | FALCON | El Paso County Colorado School District 49 | 413 | 400 | -3.1% |
| 491 | Fremont Elementary School | ARVADA | Jefferson County School District No. R-1 | 277 | 268 | -3.2% |
| 492 | Grandview High School | AURORA | Cherry Creek School District No. 5 in the county of Arapah | 2,773 | 2,684 | -3.2% |
| 493 | Montrose High School | MONTROSE | Montrose County School District Re-1J | 1,323 | 1,279 | -3.3% |
| 494 | Pagosa Springs High School | PAGOSA SPRINGS | Archuleta County School District No. 50 Jt | 450 | 435 | -3.3% |
| 495 | Shaffer Elementary School | LITTLETON | Jefferson County School District No. R-1 | 514 | 497 | -3.3% |
| 496 | Green Mountain High School | LAKEWOOD | Jefferson County School District No. R-1 | 1,108 | 1,071 | -3.3% |
| 497 | Bear Valley International School | DENVER | School District No. 1 in the county of Denver and State of C | 324 | 313 | -3.4% |
| 498 | Horizon High School | BRIGHTON | Adams 12 Five Star Schools | 2,037 | 1,966 | -3.5% |
| 499 | West Ridge Elementary | THORNTON | School District 27J | 715 | 690 | -3.5% |
| 500 | Northeast Elementary School | PARKER | Douglas County School District No. Re 1 | 341 | 329 | -3.5% |
