| Inver Hills Comm. College # 1, Field #1 |
| Irondale High School, Field 1 |
| Isanti Redbird Field, Redbird Field |
| Jackson Field, Jackson Field |
| Jaycee Park, Grass infield |
| Jefferson Fields, Jefferson Field #1 |
| Jefferson Fields, Jefferson Field #2 |
| Jefferson Fields, Jefferson Field #3 |
| Jefferson Fields, Jefferson Field #4 |
| Jefferson HS, Field #1 |
| Jefferson HS, Field #2 |
| Jo Eagle Anderson Park, Baseball Field |
| Joe Schleper Field, Joe Schleper Field |
| John Burch Park, John Burch Field |
| John Glenn Middle School, John Glenn MS South |
| John Ireland Field, John Ireland Field |
| Johnny Cake Ridge Park East, AV Legion Field |
| Johnny Cake Ridge Park East, Field E |
| Johnny Cake Ridge Park East, Field F |
| Johnny Cake Ridge Park East, Field G |
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