Allamakee County is the northeastern-most county in the U.S. state of Iowa. As of the 2010 census, the population was 14,330. Its county seat is Waukon.
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water. In the northern part of the county is the Upper Iowa River. In the southern part is the Yellow River. The eastern boundary is the Mississippi River. All offer scenic and recreational opportunities, particularly in Yellow River State Forest. French Creek flows north of Waukon, outside the city limits. Paint Creek, named after Paint Rock Bluff, flows out of the south of Waukon. Norfolk creek originates in the western outskirts of Waukon and is effluent to the Yellow River. Clear Creek flows into Lansing. Village Creek flows through essentially rural terrain. All are tributary to the Mississippi River. The landforms encountered in the county are very unlike those found in most of Iowa, which is mostly absent Glacial Drift. As part of the Driftless Area, the county was ice free during the last ice age, and as one progresses to the Mississippi River, the streams and rivers display high-walled canyons carved of Silurian period bedrock. This Driftless Area also includes parts of Clayton, Fayette, Winneshiek, Howard, Dubuque, and Jackson Counties.
The 2010 census recorded a population of 14,330 in the county, with a population density of. There were 7,617 housing units, of which 5,845 were occupied.
2000 census
As of the census of 2000, there were 14,675 people, 5,722 households, and 3,931 families residing in the county. The population density was 23 people per square mile. There were 7,142 housing units at an average density of 11 per square mile. The racial makeup of the county was 95.88% White, 0.14% Black or African American, 0.18% Native American, 0.27% Asian, 0.01% Pacific Islander, 2.82% from other races, and 0.70% from two or more races. 3.54% of the population were Hispanic or Latino of any race. There were 5,722 households out of which 30.60% had children under the age of 18 living with them, 58.40% were married couplesliving together, 6.60% had a female householder with no husband present, and 31.30% were non-families. 27.50% of all households were made up of individuals and 14.30% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.02. In the county, the population was spread out with 25.40% under the age of 18, 7.00% from 18 to 24, 25.60% from 25 to 44, 23.60% from 45 to 64, and 18.40% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 100.20 males. For every 100 females age 18 and over, there were 98.90 males. The median income for a household in the county was $33,967, and the median income for a family was $40,589. Males had a median income of $26,122 versus $19,098 for females. The per capita income for the county was $16,599. About 6.40% of families and 9.60% of the population were below the poverty line, including 11.80% of those under age 18 and 8.10% of those age 65 or over.
Notable sites
Effigy Mounds National Monument is found in the southeast corner of the county.
Upper Mississippi River National Wildlife and Fish Refuge encompasses the River.
Driftless Area National Wildlife Refuge, a collection of small, non-contiguous parcels harboring two endangered species.
