In a large mixing bowl, combine the fresh corn, blueberries, red bell pepper, red onion, and jalapeño pepper if using.
In a small bowl, whisk together the lime juice, olive oil, honey (if using), salt, and pepper until well combined.
Pour the dressing over the corn and blueberry mixture. Gently toss until all ingredients are evenly coated.
Taste and adjust seasoning if necessary, adding more salt, pepper, or lime juice as desired.
Cover the salsa and refrigerate for at least 30 minutes to allow the flavors to meld together.
Serve chilled or at room temperature with tortilla chips, grilled chicken, or as a topping for tacos.