Luna Pier is a city in Monroe County in the U.S. state of Michigan. The population was 1,382 at the 2020 census. Previously known as Lakewood, it was established in the early 1900s and incorporated as a city in 1963. Its most prominent feature is a large crescent-shaped pier made of concrete, approximately 800 ft long and reaching around 200 feet out into Lake Erie. The pier is flanked by sandy beaches and man-made rock and concrete embankments.