1981 CART Series Nations Cup Championship Standings
| # | Country | Points | |
|---|---|---|---|
| 1. |  United States |
407 |
|
| 2. |  Mexico |
30 |
|
| 3. |  Australia |
15 |
|
| 4. |  England |
11 |
|
Note: The team championship is not an official IndyCar championship. It is based on own calculations, where the points scored by the two highest-ranked cars from each team are added together for each race.