|• Total||0.21 sq mi (0.55 km2)|
|• Land||0.21 sq mi (0.55 km2)|
|• Water||0 sq mi (0 km2)|
|Elevation||1,078 ft (329 m)|
|• Density||166/sq mi (64.1/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||0460368|
Portland is located in northern Iowa in eastern Cerro Gordo County, along the northeast bank of the Winnebago River. The Mason City limits are a short distance to the north, with downtown Mason City 6 miles (10 km) to the northwest. U.S. Route 18 is 1 mile (1.6 km) to the south.
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Portland CDP, Iowa". U.S. Census Bureau, American Factfinder. Retrieved November 15, 2013.
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