| Competition: | National Premier Soccer League |
| Season: | 2005 |
| Winners: | Detroit Arsenal |
| Prevseason: | 2004 |
| Nextseason: | 2006 |
The 2005 National Premier Soccer League season was the 3rd season of the NPSL. Prior to the beginning of the year the league changed its name from the Mens Premier Soccer League to the National Premier Soccer League, to recognize the league's eastward expansion and the creation of the new Midwest Division.
Expansion franchise Detroit Arsenal finished the season as national champions, beating Sonoma County Sol in the NPSL Championship game
| Team Name | Metro Area | Location | Previous Affiliation | |
|---|---|---|---|---|
| Detroit Arsenal | Detroit area | Berkley, MI | expansion | |
| Grand Rapids Alliance | Grand Rapids area | Grand Rapids, MI | expansion | |
| Milwaukee Bavarians | Milwaukee area | Milwaukee, WI | expansion | |
| Minnesota Blast | Minneapolis area | Burnsville, MN | expansion | |
| Princeton 56ers | Madison area | Madison, WI | expansion | |
| San Diego Pumitas | San Diego area | San Diego, CA | expansion | |
| Minnesota TwinStars (formerly St Paul TwinStars) | St. Paul area | St. Paul, MN | expansion |
Purple indicates division title clinched
Green indicates playoff berth clinched
| Place | Team | P | W | L | T | GF | GA | GD | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sacramento Knights | 18 | 12 | 4 | 2 | 42 | 20 | 22 | 38 | |
| 2 | Sonoma County Sol | 18 | 11 | 5 | 2 | 26 | 16 | 20 | 35 | |
| 3 | Chico Rooks | 18 | 8 | 6 | 4 | 32 | 27 | 5 | 28 | |
| 4 | Salinas Valley Samba | 18 | 8 | 7 | 3 | 29 | 25 | 4 | 24 | |
| 5 | Albuquerque Asylum | 18 | 4 | 7 | 7 | 23 | 32 | -9 | 19 | |
| 6 | San Diego Pumitas | 18 | 4 | 8 | 6 | 32 | 34 | -2 | 18 | |
| 7 | Las Vegas Strikers | 18 | 2 | 12 | 4 | 24 | 52 | -28 | 10 |
| Place | Team | P | W | L | T | GF | GA | GD | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Detroit Arsenal | 10 | 8 | 0 | 2 | 42 | 5 | 37 | 26 | |
| 2 | Milwaukee Bavarians | 10 | 8 | 1 | 1 | 24 | 6 | 18 | 25 | |
| 3 | Princeton 56ers | 10 | 5 | 5 | 0 | 17 | 20 | -3 | 15 | |
| 4 | Minnesota Blast | 10 | 3 | 5 | 2 | 15 | 20 | -5 | 11 | |
| 5 | Minnesota TwinStars | 10 | 2 | 7 | 1 | 14 | 36 | -22 | 7 | |
| 6 | Grand Rapids Alliance | 10 | 1 | 9 | 0 | 10 | 36 | -26 | 3 |
Sonoma County Sol beat Sacramento Knights
Detroit Arsenal beat Milwaukee Bavarians
Detroit Arsenal 1-0 Sonoma County Sol