Preheat your oven to 350°F (175°C) and grease a 9x5 inch loaf pan.
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
In a large bowl, cream together the sugar, butter, and lemon zest until light and fluffy.
Mix in the eggs, one at a time, beating well after each addition, then mix in the lemon juice.
Gradually add in the dry ingredients, alternating with the milk, beginning and ending with the dry ingredients.
Toss the blueberries in 1 tablespoon of flour to coat, then gently fold them into the batter.
Pour the batter into the prepared loaf pan and smooth the top with a spatula.
Bake for 60 minutes or until a toothpick inserted into the center comes out clean.
Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.