"Delmar is a city in Clinton County, Iowa, United States. The population was 525 at the 2010 census."@en . . "Delmar, Iowa"@en . "563" . "266.719"^^ . . . "-5" . "266.7"^^ . "1.96839e+06"^^ . "1.97e+06"^^ . "52037" . "250.0"^^ . "0.0"^^ . "Mayor"@en . "-6" . . . "525"^^ . "249.936"^^ . "1.97e+06"^^ . . "1.96839e+06"^^ . .