Preheat your oven to 350°F (175°C) and grease a loaf pan.
In a large bowl, cream together the softened butter and sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the lemon zest and juice.
In another bowl, whisk together flour, baking powder, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture, alternating with the milk.
Gently fold in the blueberries.
Pour the batter into the prepared loaf pan.
Bake for 50-60 minutes, or until a toothpick inserted in the center comes out clean.
Let the bread cool in the pan for 10 minutes before transferring it to a wire rack.