Delmar, Iowa is a small town in Jackson County with a population of around 500. The climate in Delmar is typical of the Midwest, with hot summers and cold winters. The town is situated near the Wapsipinicon River, which provides hydrology constituents for the surrounding farmland. Outdoor recreation opportunities in the area include fishing, hiking, and camping in the nearby Maquoketa Caves State Park. The park includes over 13 miles of hiking trails, scenic overlooks, and 16 caves for exploring. Delmar is a quiet, rural community with plenty of opportunities to enjoy the natural beauty of the surrounding area.