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(pronounced 'dell-high) is a city in Delaware County, Iowa, United States. The population was 458 at the 2000 census.
According to the United States Census Bureau, the city has a total area of 1.0 square miles (2.7 km²), of which, 1.0 square miles (2.5 km²) of it is land and 0.1 square miles (0.1 km²) of it (4.85%) is water.