|Allamakee County, Iowa|
Location in the U.S. state of Iowa
Iowa's location in the U.S.
|• Total||659 sq mi (1,707 km2)|
|• Land||639 sq mi (1,655 km2)|
|• Water||20 sq mi (52 km2), 3.0%|
|• ( 2010)||14,330|
|• Density||22/sq mi (8/km2)|
|Time zone||Central: UTC−6/ −5|
Allamakee County was formed on February 20, 1847. The derivation of the name is debated, some believing it was the name of an Indian chief, others think it was named for Allen Magee, an early historic trader.  The first Allamakee County Courthouse in Waukon, built in 1861, now serves as the Allamakee County Historical Museum. The present Allamakee County Court House was built in 1940. Both courthouse buildings are listed on the National Register of Historic Places. 
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. 
- Houston County, Minnesota (north)
- Vernon County, Wisconsin (northeast)
- Crawford County, Wisconsin (east)
- Clayton County (south)
- Winneshiek County (west)
- Fayette County (southwest)
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
The 2010 census recorded a population of 14,330 in the county, with a population density of 22.39/sq mi ( 8.65/km2). There were 7,617 housing units, of which 5,845 were occupied.
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 (9/km²). There were 7,142 housing units at an average density of 11 per square mile (4/km²). 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 couples living 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.
- 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.
- Yellow River State Forest is a four-season state park.
Allamakee County is divided into eighteen townships:
† county seat
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)
|2||Postville (mostly in Clayton County)||City||2,227|
- Cota Creek
- Duck Lake (Iowa)
- National Register of Historic Places listings in Allamakee County, Iowa
- Allamakee County Court House
- The former Allamakee County Courthouse, now a museum
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 6, 2011. Retrieved July 13, 2014.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved 2011-06-07.
- Alexander, W. E. (1882). History of Winneshiek and Allamakee Counties, Iowa. Western Publishing Company. p. 326.
- National Park Service (2009-03-13). "National Register Information System". National Register of Historic Places. National Park Service.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- Iowa DNR site on Yellow River State Forest Archived July 14, 2007, at the Wayback Machine.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved July 13, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved July 13, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 13, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 13, 2014.
- "Population and Housing Occupancy Status: 2010 - State -- County". United States Census Bureau American FactFinder. Retrieved March 6, 2011.
- "American FactFinder". United States Census Bureau. Archived from the original on September 11, 2013. Retrieved 2008-01-31.
- "Archived copy". Archived from the original on December 21, 2013. Retrieved February 13, 2016.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-04-25.
|Wikimedia Commons has media related to Allamakee County, Iowa.|
- Allamakee County Information
- Allamakee County Official Site
- Allamakee County Map
- Allamakee County Health and Demographic Data
- Waukon Standard (Newspaper)
- KNEI/KHPP Radio
- Allamakee County History Website