Lowest Student–Teacher Ratio in Jefferson County School District No. R-1 (2025)
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Ranked by the Success Index (US) from official American data; 100 schools in Jefferson County School District No. R-1, Colorado. Rank positions shown on each profile are within United States and Colorado.
- Elementary Schools in Jefferson County School District No. R-1
- Middle Schools in Jefferson County School District No. R-1
- High Schools in Jefferson County School District No. R-1
- Traditional Public Schools in Jefferson County School District No. R-1
- Charter Schools in Jefferson County School District No. R-1
- Schools by Math Proficiency in Jefferson County School District No. R-1
- Schools by Reading Proficiency in Jefferson County School District No. R-1
- Largest Schools in Jefferson County School District No. R-1
- 145Mountain Phoenix Community SchoolWheatridge · Charter ElementaryStudents per teacher: 12.7
- 241Addenbrooke Classical AcademyLakewood · Charter HighStudents per teacher: 12.7
- 323Stevens Elementary SchoolWheat Ridge · Public ElementaryStudents per teacher: 13.0
- 423Deane Elementary SchoolLakewood · Public ElementaryStudents per teacher: 13.1
- 528Slater Elementary SchoolLakewood · Public ElementaryStudents per teacher: 13.3
- 634Foothills Elementary SchoolLakewood · Public ElementaryStudents per teacher: 13.4
- 722Eiber Elementary SchoolLakewood · Public ElementaryStudents per teacher: 13.4
- 860Blue Heron Elementary SchoolLittleton · Public ElementaryStudents per teacher: 13.5
- 952Rocky Mountain Academy of EvergreenEvergreen · Charter ElementaryStudents per teacher: 13.5
- 1017Jefferson Junior/Senior High SchoolEdgewater · Public HighStudents per teacher: 13.7
- 1160Fremont Elementary SchoolArvada · Public ElementaryStudents per teacher: 14.1
- 1267Stott Elementary SchoolArvada · Public ElementaryStudents per teacher: 14.4
- 1356Vanderhoof Elementary SchoolArvada · Public ElementaryStudents per teacher: 14.4
- 1448Mortensen Elementary SchoolLittleton · Public ElementaryStudents per teacher: 14.4
- 1521Westgate Elementary SchoolLakewood · Public ElementaryStudents per teacher: 14.5
- 1658Shelton Elementary SchoolGolden · Public ElementaryStudents per teacher: 14.6
- 1716Rose Stein International ElementaryLakewood · Public ElementaryStudents per teacher: 14.6
- 1865Excel Academy Charter SchoolArvada · Charter ElementaryStudents per teacher: 14.8
- 1958West Jefferson Elementary SchoolConifer · Public ElementaryStudents per teacher: 14.8
- 2054Jefferson County Open Elementary SchoolLakewood · Public ElementaryStudents per teacher: 14.8
- 2158Hutchinson Elementary SchoolLakewood · Public ElementaryStudents per teacher: 14.9
- 2243Weber Elementary SchoolArvada · Public ElementaryStudents per teacher: 14.9
- 2319Swanson Elementary SchoolArvada · Public ElementaryStudents per teacher: 14.9
- 2444Jefferson County Open SecondaryLakewood · Public HighStudents per teacher: 15.0
- 2539Patterson International SchoolLakewood · Public ElementaryStudents per teacher: 15.0
- 2668Dutch Creek Elementary SchoolLittleton · Public ElementaryStudents per teacher: 15.1
- 2744South Lakewood Elementary SchoolLakewood · Public ElementaryStudents per teacher: 15.1
- 2831Secrest Elementary SchoolArvada · Public ElementaryStudents per teacher: 15.2
- 2920Alameda International Junior/Senior High SchoolLakewood · Public HighStudents per teacher: 15.2
- 3067Normandy Elementary SchoolLittleton · Public ElementaryStudents per teacher: 15.4
- 3155Kendallvue Elementary SchoolMorrison · Public ElementaryStudents per teacher: 15.4
- 3217Welchester Elementary SchoolGolden · Public ElementaryStudents per teacher: 15.4
- 3354Lukas Elementary SchoolWestminster · Public ElementaryStudents per teacher: 15.5
- 3429Little Elementary SchoolArvada · Public ElementaryStudents per teacher: 15.5
- 3577Ute Meadows Elementary SchoolLittleton · Public ElementaryStudents per teacher: 15.6
- 3672Wilmot Elementary SchoolEvergreen · Public ElementaryStudents per teacher: 15.6
- 3731Lasley Elementary SchoolLakewood · Public ElementaryStudents per teacher: 15.6
- 3824Everitt Middle SchoolWheat Ridge · Public MiddleStudents per teacher: 15.7
- 3953Stober Elementary SchoolLakewood · Public ElementaryStudents per teacher: 15.8
- 4049Columbine Hills Elementary SchoolLittleton · Public ElementaryStudents per teacher: 15.8
- 4133Lawrence Elementary SchoolArvada · Public ElementaryStudents per teacher: 15.8
- 4251Montessori Peaks Charter AcademyLittleton · Charter ElementaryStudents per teacher: 15.9
- 4374Mount Carbon Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.0
- 4459Jefferson Academy ElementaryBroomfield · Charter ElementaryStudents per teacher: 16.0
- 4519Edgewater Elementary SchoolEdgewater · Public ElementaryStudents per teacher: 16.0
- 4641Creighton Middle SchoolLakewood · Public MiddleStudents per teacher: 16.1
- 4766Elk Creek Elementary SchoolPine · Public ElementaryStudents per teacher: 16.2
- 4865Woodrow Wilson Charter AcademyWestminster · Charter ElementaryStudents per teacher: 16.2
- 4924Foster Dual Language PK-8Arvada · Public ElementaryStudents per teacher: 16.2
- 5075Marshdale Elementary SchoolEvergreen · Public ElementaryStudents per teacher: 16.3
- 5155Powderhorn Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.3
- 5230Belmar School of Integrated ArtsLakewood · Public ElementaryStudents per teacher: 16.3
- 5383Parmalee Elementary SchoolIndian Hills · Public ElementaryStudents per teacher: 16.4
- 5461Governor's Ranch Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.4
- 5513Lumberg Elementary SchoolEdgewater · Public ElementaryStudents per teacher: 16.4
- 5667Ryan Elementary SchoolWestminster · Public ElementaryStudents per teacher: 16.5
- 5761Green Gables Elementary SchoolLakewood · Public ElementaryStudents per teacher: 16.6
- 5849Stony Creek Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.6
- 5961Coronado Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.7
- 6060Leawood Elementary SchoolLittleton · Public ElementaryStudents per teacher: 16.9
- 6173Rooney Ranch Elementary SchoolLakewood · Public ElementaryStudents per teacher: 17.0
- 6264Maple Grove Elementary SchoolGolden · Public ElementaryStudents per teacher: 17.0
- 6352Mandalay Middle SchoolWestminster · Public MiddleStudents per teacher: 17.0
- 6441Addenbrooke Classical Grammar SchoolLakewood · Charter ElementaryStudents per teacher: 17.2
- 6538Carmody Middle SchoolLakewood · Public MiddleStudents per teacher: 17.2
- 6662Warder Elementary SchoolArvada · Public ElementaryStudents per teacher: 17.3
- 6779Meiklejohn ElementaryArvada · Public ElementaryStudents per teacher: 17.4
- 6870Westridge Elementary SchoolLittleton · Public ElementaryStudents per teacher: 17.4
- 6978Bergen Elementary SchoolEvergreen · Public ElementaryStudents per teacher: 17.5
- 7067Three Creeks K-8Arvada · Public ElementaryStudents per teacher: 17.5
- 7151Lincoln Charter AcademyArvada · Charter ElementaryStudents per teacher: 17.5
- 7243Pomona Junior/Senior High SchoolArvada · Public HighStudents per teacher: 17.6
- 7340Bear Creek K-8 SchoolLakewood · Public ElementaryStudents per teacher: 17.6
- 7468Kendrick Lakes Elementary SchoolLakewood · Public ElementaryStudents per teacher: 17.7
- 7573Shaffer Elementary SchoolLittleton · Public ElementaryStudents per teacher: 17.8
- 7626North Arvada Middle SchoolArvada · Public MiddleStudents per teacher: 17.8
- 7755Hackberry Hill Elementary SchoolArvada · Public ElementaryStudents per teacher: 17.9
- 7883Devinny Elementary SchoolLakewood · Public ElementaryStudents per teacher: 18.0
- 7974Kyffin Elementary SchoolGolden · Public ElementaryStudents per teacher: 18.0
- 8020Compass Montessori - Wheat Ridge Charter SchoolWheat Ridge · Charter ElementaryStudents per teacher: 18.0
- 8183Ralston Elementary SchoolGolden · Public ElementaryStudents per teacher: 18.1
- 8279West Woods Elementary SchoolArvada · Public ElementaryStudents per teacher: 18.1
- 8369Prospect Valley Elementary SchoolWheat Ridge · Public ElementaryStudents per teacher: 18.2
- 8463Van Arsdale Elementary SchoolArvada · Public ElementaryStudents per teacher: 18.2
- 8549Adams Elementary SchoolWestminster · Public ElementaryStudents per teacher: 18.2
- 8681Jefferson Academy SecondaryBroomfield · Charter HighStudents per teacher: 18.3
- 8766Sierra Elementary SchoolArvada · Public ElementaryStudents per teacher: 18.3
- 8856Wayne Carle Middle SchoolWestminster · Public MiddleStudents per teacher: 18.3
- 8954Wheat Ridge High SchoolWheat Ridge · Public HighStudents per teacher: 18.3
- 9036Semper Elementary SchoolWestminster · Public ElementaryStudents per teacher: 18.5
- 9182Bradford K8 SouthLittleton · Public ElementaryStudents per teacher: 18.6
- 9258Ken Caryl Middle SchoolLittleton · Public MiddleStudents per teacher: 18.6
- 9354Dunstan Middle SchoolLakewood · Public MiddleStudents per teacher: 18.6
- 9432Peak Expeditionary - PenningtonWheat Ridge · Public ElementaryStudents per teacher: 18.6
- 9579Fairmount Elementary SchoolGolden · Public ElementaryStudents per teacher: 18.8
- 9677Conifer Senior High SchoolConifer · Public HighStudents per teacher: 19.0
- 9763Lakewood High SchoolLakewood · Public HighStudents per teacher: 19.1
- 9843Free Horizon MontessoriGolden · Public ElementaryStudents per teacher: 19.1
- 9950Bear Creek High SchoolLakewood · Public HighStudents per teacher: 19.2
- 10024Arvada High SchoolArvada · Public HighStudents per teacher: 19.3
| # | School | Sector | Students per teacher | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|---|
| 1 | Mountain Phoenix Community School Wheatridge · Elementary · Grades PK–8 | Charter | 12.7 | 45.3 Lower 50% | 22% Math proficiency | 533 |
| 2 | Addenbrooke Classical Academy Lakewood · High · Grades 9–12 | Charter | 12.7 | 40.7 Lower 50% | 20% Math proficiency | 191 |
| 3 | Stevens Elementary School Wheat Ridge · Elementary · Grades PK–5 | Public | 13.0 | 23.1 Lower 50% | 7.5% Math proficiency | 469 |
| 4 | Deane Elementary School Lakewood · Elementary · Grades PK–6 | Public | 13.1 | 23.0 Lower 50% | 15% Math proficiency | 341 |
| 5 | Slater Elementary School Lakewood · Elementary · Grades PK–5 | Public | 13.3 | 28.3 Lower 50% | 22% Math proficiency | 280 |
| 6 | Foothills Elementary School Lakewood · Elementary · Grades PK–5 | Public | 13.4 | 34.1 Lower 50% | 22% Math proficiency | 363 |
| 7 | Eiber Elementary School Lakewood · Elementary · Grades PK–5 | Public | 13.4 | 22.0 Lower 50% | 17% Math proficiency | 255 |
| 8 | Blue Heron Elementary School Littleton · Elementary · Grades PK–5 | Public | 13.5 | 59.6 Top 50% | 41% Math proficiency | 325 |
| 9 | Rocky Mountain Academy of Evergreen Evergreen · Elementary · Grades K–8 | Charter | 13.5 | 51.9 Top 50% | 36% Math proficiency | 350 |
| 10 | Jefferson Junior/Senior High School Edgewater · High · Grades 7–12 | Public | 13.7 | 17.0 Lower 50% | 4% Math proficiency | 601 |
| 11 | Fremont Elementary School Arvada · Elementary · Grades K–5 | Public | 14.1 | 59.6 Top 50% | 47% Math proficiency | 268 |
| 12 | Stott Elementary School Arvada · Elementary · Grades PK–5 | Public | 14.4 | 66.7 Top 50% | 47% Math proficiency | 288 |
| 13 | Vanderhoof Elementary School Arvada · Elementary · Grades K–5 | Public | 14.4 | 55.8 Top 50% | 42% Math proficiency | 403 |
| 14 | Mortensen Elementary School Littleton · Elementary · Grades PK–5 | Public | 14.4 | 48.2 Lower 50% | 32% Math proficiency | 260 |
| 15 | Westgate Elementary School Lakewood · Elementary · Grades PK–5 | Public | 14.5 | 21.4 Lower 50% | 15% Math proficiency | 305 |
| 16 | Shelton Elementary School Golden · Elementary · Grades PK–5 | Public | 14.6 | 57.8 Top 50% | 45% Math proficiency | 394 |
| 17 | Rose Stein International Elementary Lakewood · Elementary · Grades PK–6 | Public | 14.6 | 16.2 Lower 50% | 2.5% Math proficiency | 336 |
| 18 | Excel Academy Charter School Arvada · Elementary · Grades K–8 | Charter | 14.8 | 65.1 Top 50% | 45% Math proficiency | 445 |
| 19 | West Jefferson Elementary School Conifer · Elementary · Grades PK–5 | Public | 14.8 | 58.2 Top 50% | 42% Math proficiency | 252 |
| 20 | Jefferson County Open Elementary School Lakewood · Elementary · Grades PK–6 | Public | 14.8 | 53.6 Top 50% | 37% Math proficiency | 236 |
| 21 | Hutchinson Elementary School Lakewood · Elementary · Grades PK–5 | Public | 14.9 | 57.8 Top 50% | 42% Math proficiency | 328 |
| 22 | Weber Elementary School Arvada · Elementary · Grades PK–5 | Public | 14.9 | 43.4 Lower 50% | 27% Math proficiency | 312 |
| 23 | Swanson Elementary School Arvada · Elementary · Grades PK–5 | Public | 14.9 | 19.0 Lower 50% | 7.5% Math proficiency | 283 |
| 24 | Jefferson County Open Secondary Lakewood · High · Grades 7–12 | Public | 15.0 | 43.9 Lower 50% | 27% Math proficiency | 315 |
| 25 | Patterson International School Lakewood · Elementary · Grades PK–6 | Public | 15.0 | 39.3 Lower 50% | 30% Math proficiency | 346 |
| 26 | Dutch Creek Elementary School Littleton · Elementary · Grades PK–5 | Public | 15.1 | 67.5 Top 50% | 52% Math proficiency | 286 |
| 27 | South Lakewood Elementary School Lakewood · Elementary · Grades K–5 | Public | 15.1 | 44.3 Lower 50% | 34% Math proficiency | 393 |
| 28 | Secrest Elementary School Arvada · Elementary · Grades PK–5 | Public | 15.2 | 31.2 Lower 50% | 27% Math proficiency | 334 |
| 29 | Alameda International Junior/Senior High School Lakewood · High · Grades 7–12 | Public | 15.2 | 19.5 Lower 50% | 10% Math proficiency | 1,002 |
| 30 | Normandy Elementary School Littleton · Elementary · Grades PK–5 | Public | 15.4 | 67.0 Top 50% | 51% Math proficiency | 262 |
| 31 | Kendallvue Elementary School Morrison · Elementary · Grades PK–5 | Public | 15.4 | 54.5 Top 50% | 42% Math proficiency | 370 |
| 32 | Welchester Elementary School Golden · Elementary · Grades PK–5 | Public | 15.4 | 17.1 Lower 50% | 7.5% Math proficiency | 293 |
| 33 | Lukas Elementary School Westminster · Elementary · Grades K–5 | Public | 15.5 | 54.1 Top 50% | 40% Math proficiency | 402 |
| 34 | Little Elementary School Arvada · Elementary · Grades K–5 | Public | 15.5 | 29.1 Lower 50% | 22% Math proficiency | 310 |
| 35 | Ute Meadows Elementary School Littleton · Elementary · Grades PK–5 | Public | 15.6 | 76.8 Top 25% | 62% Math proficiency | 374 |
| 36 | Wilmot Elementary School Evergreen · Elementary · Grades PK–5 | Public | 15.6 | 71.5 Top 25% | 57% Math proficiency | 327 |
| 37 | Lasley Elementary School Lakewood · Elementary · Grades K–6 | Public | 15.6 | 30.9 Lower 50% | 30% Math proficiency | 576 |
| 38 | Everitt Middle School Wheat Ridge · Middle · Grades 6–8 | Public | 15.7 | 24.4 Lower 50% | 14% Math proficiency | 456 |
| 39 | Stober Elementary School Lakewood · Elementary · Grades K–5 | Public | 15.8 | 53.1 Top 50% | 37% Math proficiency | 348 |
| 40 | Columbine Hills Elementary School Littleton · Elementary · Grades PK–5 | Public | 15.8 | 49.4 Lower 50% | 32% Math proficiency | 315 |
| 41 | Lawrence Elementary School Arvada · Elementary · Grades K–5 | Public | 15.8 | 32.9 Lower 50% | 32% Math proficiency | 412 |
| 42 | Montessori Peaks Charter Academy Littleton · Elementary · Grades PK–8 | Charter | 15.9 | 50.7 Top 50% | 27% Math proficiency | 444 |
| 43 | Mount Carbon Elementary School Littleton · Elementary · Grades PK–5 | Public | 16.0 | 73.6 Top 25% | 57% Math proficiency | 367 |
| 44 | Jefferson Academy Elementary Broomfield · Elementary · Grades PK–6 | Charter | 16.0 | 59.2 Top 50% | 42% Math proficiency | 737 |
| 45 | Edgewater Elementary School Edgewater · Elementary · Grades PK–6 | Public | 16.0 | 18.8 Lower 50% | 12% Math proficiency | 335 |
| 46 | Creighton Middle School Lakewood · Middle · Grades 6–8 | Public | 16.1 | 41.2 Lower 50% | 35% Math proficiency | 741 |
| 47 | Elk Creek Elementary School Pine · Elementary · Grades PK–5 | Public | 16.2 | 66.0 Top 50% | 47% Math proficiency | 323 |
| 48 | Woodrow Wilson Charter Academy Westminster · Elementary · Grades PK–8 | Charter | 16.2 | 64.5 Top 50% | 49% Math proficiency | 518 |
| 49 | Foster Dual Language PK-8 Arvada · Elementary · Grades PK–8 | Public | 16.2 | 24.4 Lower 50% | 11% Math proficiency | 454 |
| 50 | Marshdale Elementary School Evergreen · Elementary · Grades PK–5 | Public | 16.3 | 75.2 Top 25% | 57% Math proficiency | 375 |
| 51 | Powderhorn Elementary School Littleton · Elementary · Grades PK–5 | Public | 16.3 | 54.6 Top 50% | 39% Math proficiency | 522 |
| 52 | Belmar School of Integrated Arts Lakewood · Elementary · Grades K–5 | Public | 16.3 | 30.1 Lower 50% | 22% Math proficiency | 293 |
| 53 | Parmalee Elementary School Indian Hills · Elementary · Grades K–5 | Public | 16.4 | 83.4 Top 10% | 72% Math proficiency | 278 |
| 54 | Governor's Ranch Elementary School Littleton · Elementary · Grades PK–5 | Public | 16.4 | 61.2 Top 50% | 45% Math proficiency | 458 |
| 55 | Lumberg Elementary School Edgewater · Elementary · Grades PK–6 | Public | 16.4 | 13.2 Lower 50% | 12% Math proficiency | 526 |
| 56 | Ryan Elementary School Westminster · Elementary · Grades PK–5 | Public | 16.5 | 66.8 Top 50% | 57% Math proficiency | 511 |
| 57 | Green Gables Elementary School Lakewood · Elementary · Grades PK–5 | Public | 16.6 | 61.0 Top 50% | 52% Math proficiency | 315 |
| 58 | Stony Creek Elementary School Littleton · Elementary · Grades PK–5 | Public | 16.6 | 48.7 Lower 50% | 37% Math proficiency | 349 |
| 59 | Coronado Elementary School Littleton · Elementary · Grades PK–5 | Public | 16.7 | 61.4 Top 50% | 46% Math proficiency | 384 |
| 60 | Leawood Elementary School Littleton · Elementary · Grades PK–6 | Public | 16.9 | 59.5 Top 50% | 47% Math proficiency | 321 |
| 61 | Rooney Ranch Elementary School Lakewood · Elementary · Grades K–5 | Public | 17.0 | 73.2 Top 25% | 58% Math proficiency | 492 |
| 62 | Maple Grove Elementary School Golden · Elementary · Grades PK–5 | Public | 17.0 | 64.3 Top 50% | 47% Math proficiency | 390 |
| 63 | Mandalay Middle School Westminster · Middle · Grades 6–8 | Public | 17.0 | 51.9 Top 50% | 40% Math proficiency | 443 |
| 64 | Addenbrooke Classical Grammar School Lakewood · Elementary · Grades PK–8 | Charter | 17.2 | 40.7 Lower 50% | 35% Math proficiency | 774 |
| 65 | Carmody Middle School Lakewood · Middle · Grades 6–8 | Public | 17.2 | 37.8 Lower 50% | 31% Math proficiency | 550 |
| 66 | Warder Elementary School Arvada · Elementary · Grades PK–5 | Public | 17.3 | 61.8 Top 50% | 42% Math proficiency | 432 |
| 67 | Meiklejohn Elementary Arvada · Elementary · Grades PK–5 | Public | 17.4 | 78.6 Top 25% | 65% Math proficiency | 521 |
| 68 | Westridge Elementary School Littleton · Elementary · Grades PK–5 | Public | 17.4 | 70.1 Top 25% | 54% Math proficiency | 400 |
| 69 | Bergen Elementary School Evergreen · Elementary · Grades PK–5 | Public | 17.5 | 78.4 Top 25% | 68% Math proficiency | 456 |
| 70 | Three Creeks K-8 Arvada · Elementary · Grades K–8 | Public | 17.5 | 66.5 Top 50% | 49% Math proficiency | 1,050 |
| 71 | Lincoln Charter Academy Arvada · Elementary · Grades PK–8 | Charter | 17.5 | 50.8 Top 50% | 37% Math proficiency | 824 |
| 72 | Pomona Junior/Senior High School Arvada · High · Grades 6–12 | Public | 17.6 | 42.7 Lower 50% | 28% Math proficiency | 1,252 |
| 73 | Bear Creek K-8 School Lakewood · Elementary · Grades K–8 | Public | 17.6 | 39.9 Lower 50% | 30% Math proficiency | 863 |
| 74 | Kendrick Lakes Elementary School Lakewood · Elementary · Grades PK–5 | Public | 17.7 | 67.6 Top 50% | 57% Math proficiency | 443 |
| 75 | Shaffer Elementary School Littleton · Elementary · Grades PK–5 | Public | 17.8 | 73.4 Top 25% | 60% Math proficiency | 497 |
| 76 | North Arvada Middle School Arvada · Middle · Grades 6–8 | Public | 17.8 | 25.6 Lower 50% | 24% Math proficiency | 464 |
| 77 | Hackberry Hill Elementary School Arvada · Elementary · Grades K–5 | Public | 17.9 | 54.9 Top 50% | 46% Math proficiency | 430 |
| 78 | Devinny Elementary School Lakewood · Elementary · Grades K–5 | Public | 18.0 | 82.6 Top 10% | 76% Math proficiency | 505 |
| 79 | Kyffin Elementary School Golden · Elementary · Grades PK–5 | Public | 18.0 | 74.4 Top 25% | 62% Math proficiency | 503 |
| 80 | Compass Montessori - Wheat Ridge Charter School Wheat Ridge · Elementary · Grades PK–6 | Charter | 18.0 | 20.4 Lower 50% | 22% Math proficiency | 288 |
| 81 | Ralston Elementary School Golden · Elementary · Grades K–5 | Public | 18.1 | 82.8 Top 10% | 77% Math proficiency | 289 |
| 82 | West Woods Elementary School Arvada · Elementary · Grades K–5 | Public | 18.1 | 79.0 Top 25% | 68% Math proficiency | 542 |
| 83 | Prospect Valley Elementary School Wheat Ridge · Elementary · Grades K–5 | Public | 18.2 | 69.3 Top 25% | 58% Math proficiency | 583 |
| 84 | Van Arsdale Elementary School Arvada · Elementary · Grades PK–5 | Public | 18.2 | 62.9 Top 50% | 53% Math proficiency | 492 |
| 85 | Adams Elementary School Westminster · Elementary · Grades PK–5 | Public | 18.2 | 49.4 Lower 50% | 42% Math proficiency | 310 |
| 86 | Jefferson Academy Secondary Broomfield · High · Grades 7–12 | Charter | 18.3 | 81.3 Top 10% | 72% Math proficiency | 696 |
| 87 | Sierra Elementary School Arvada · Elementary · Grades PK–5 | Public | 18.3 | 65.9 Top 50% | 52% Math proficiency | 493 |
| 88 | Wayne Carle Middle School Westminster · Middle · Grades 6–8 | Public | 18.3 | 55.8 Top 50% | 41% Math proficiency | 438 |
| 89 | Wheat Ridge High School Wheat Ridge · High · Grades 9–12 | Public | 18.3 | 54.3 Top 50% | 41% Math proficiency | 932 |
| 90 | Semper Elementary School Westminster · Elementary · Grades PK–5 | Public | 18.5 | 35.9 Lower 50% | 27% Math proficiency | 314 |
| 91 | Bradford K8 South Littleton · Elementary · Grades K–4 | Public | 18.6 | 82.3 Top 10% | 77% Math proficiency | 371 |
| 92 | Ken Caryl Middle School Littleton · Middle · Grades 6–8 | Public | 18.6 | 57.7 Top 50% | 43% Math proficiency | 725 |
| 93 | Dunstan Middle School Lakewood · Middle · Grades 6–8 | Public | 18.6 | 54.4 Top 50% | 41% Math proficiency | 798 |
| 94 | Peak Expeditionary - Pennington Wheat Ridge · Elementary · Grades PK–5 | Public | 18.6 | 32.0 Lower 50% | 27% Math proficiency | 316 |
| 95 | Fairmount Elementary School Golden · Elementary · Grades K–5 | Public | 18.8 | 79.2 Top 25% | 72% Math proficiency | 601 |
| 96 | Conifer Senior High School Conifer · High · Grades 9–12 | Public | 19.0 | 76.7 Top 25% | 65% Math proficiency | 819 |
| 97 | Lakewood High School Lakewood · High · Grades 9–12 | Public | 19.1 | 63.3 Top 50% | 52% Math proficiency | 1,735 |
| 98 | Free Horizon Montessori Golden · Elementary · Grades PK–8 | Public | 19.1 | 42.6 Lower 50% | 32% Math proficiency | 382 |
| 99 | Bear Creek High School Lakewood · High · Grades 9–12 | Public | 19.2 | 49.6 Top 50% | 41% Math proficiency | 1,344 |
| 100 | Arvada High School Arvada · High · Grades 9–12 | Public | 19.3 | 23.9 Lower 50% | 17% Math proficiency | 754 |
Mountain Phoenix Community School in Wheatridge leads the 2025 list of lowest student–teacher ratio in Jefferson County School District No. R-1 with Students per teacher 12.7. Of the 100 schools shown, 89 are public, 11 are charter.
For the full picture see the wider Colorado lowest student–teacher ratio rankings, every school on the Jefferson County School District No. R-1 page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best ratio school in Jefferson County School District No. R-1?
Mountain Phoenix Community School in Wheatridge, Colorado ranks first among lowest student–teacher ratio in Jefferson County School District No. R-1 with Students per teacher 12.7 (Enrollment: 533).
How are lowest student–teacher ratio in Jefferson County School District No. R-1 ranked?
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.