If using frozen corn, make sure it is completely thawed and well-drained. If using fresh corn, you'll need 4-6 ears to equal 4 cups, depending on the size of the ears. Use a large knife to carefully cut off corn kernels.
In a large bowl, mix together sour cream, mayonnaise, lime juice, chili powder, paprika, salt, and pepper until smooth, making sure to break up any clumps.
Add the corn, cotija, jalapeño, green onion, and cilantro. Mix well, coating everything evenly.
Serve immediately, or cover and chill until ready to eat.
Nutrition information is an estimate based on online calculators and provided as a courtesy. Any nutritional information should be used as a general guideline only.