電機系是個大系，故全美擁有電機系的大學真的無從算起，再加上電機系尚可細分為好幾個專業：如電子、化工、機械、環境、航空、石油、材料、醫工等，故在選擇學校時恐怕比其他科系會更困難些，今天會先針對環境工程系來談。

由於最新資料(2010)只有列出前十大，故為了更能了解整體概況，在此是使用較舊的資料(2008)，該資料則涵蓋了前45大：(該資料評鑑的最高分是5.0)

1. Stanford Univ (CA) 4.9
2. U of California–Berkeley 4.7
    U of Illinois–Urbana-Champaign 4.7
4. U of Michigan–Ann Arbor 4.4
5. California Institute of Technology 4.3
    Johns Hopkins Univ (MD) 4.3
    U of North Carolina–Chapel Hill 4.3
8. Georgia Institute of Technology 4.2
9. Massachusetts Institute of Technology 4.1
10. Cornell Univ (NY) 4.0
11. Carnegie Mellon Univ (PA) 3.9
     Northwestern Uni (IL) 3.9
     U of California–Davis 3.9
     U of Wisconsin–Madison 3.9
     Virginia Tech 3.9
16. Rice Univ (TX) 3.7
      U of Iowa 3.7
18. Michigan Technological University 3.6
19. Clemson Uni (SC) 3.4
      Penn State Uni–University Park 3.4
      Princeton Uni (NJ) 3.4
      U of Florida 3.4
23. Clarkson Uni (NY) 3.3
       U of Cincinnati 3.3
       U of Massachusetts–Amherst 3.3
26. Michigan State Uni 3.1
27. North Carolina State Uni 3.0
      Rensselaer Polytechnic Institute (NY) 3.0
      Rutgers State Uni–New Brunswick (NJ) 3.0
30. Colorado State Uni 2.9
      Drexel Uni (PA) 2.9
      U of Arizona 2.9
      U of California–Irvine 2.9
      U of California–Riverside (Bourns) 2.9
35. U of Connecticut 2.8
     Vanderbilt University (TN) 2.8
     Washington University in St. Louis 2.8
38. Illinois Institute of Technology 2.7
      U of Southern California (Andrew and Erna Viterbi) 2.7
40. OGI School of Sci. & Engineering–Oregon Health & Sci. U. 2.6
     U of Houston 2.6
     U of Oklahoma 2.6
43. New Jersey Institute of Technology 2.5
    SUNY Col. of Environmental Sci. and Forestry 2.5
    U of Kansas 2.5