Allamakee County, Iowa

Allamakee County: County in Iowa, United States


Allamakee County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 14,330 and a population density of 8 people per km². After 10 years in 2020 county had an estimated population of 13,642 inhabitants. Its county seat is Waukon. The county was created 176 years ago in 1847.

Allamakee County locator map
Location of Allamakee County on Iowa map.

Quick Facts about Allamakee County

Population : 13,642 (2020)
Country : United States of America
State : Iowa (United States)
Area : 1706 km2
Water as percent of area : 3%
Land as percent of area : 97%
Altitude : 988 feet / 301 meters
Capital : Waukon
Establishment : February 02, 1847
Time Zone : America/Chicago
Local time : 15:56:50 (29th November 2023)
Density : 8 Pop. per km² as of 2020
Population growth : -5.04% (2010-2020)
Weather : 42℉ Sunny 7-days weather
AllamakeeCountyCourthouse image
AllamakeeCountyCourthouse image


Allamakee County is located at 43°17'3"N 91°22'41"W (43.2842800, -91.3780900). It has 6 neighbors: Clayton County, Iowa County, Winneshiek County, Houston County, Crawford County and Vernon County.

Allamakee County map

The largest city of Allamakee County is Waukon with a population of 3,600. Other cities include, Postville population 2,033, Lansing population 933, New Albin population 498 and Harpers Ferry population 326. See all Allamakee County cities & populated places.

Allamakee County Populated Places

Cities, towns, neighborhoods & other populated places in Allamakee County.

City Name Population Title
Waukon 3,600 City in Iowa
Postville 2,033 City in Iowa, United States of America
Lansing 933 Human settlement in Allamakee County, Iowa, United States of America
New Albin 498 City in Allamakee County, Iowa, United States
Harpers Ferry 326 City in Iowa
Waterville 142 City in Allamakee County, Iowa, United States


Allamakee County forecast: Sunny. High near 42, with temperatures falling to around 33 in the afternoon. West wind 7 to 10 mph, with gusts as high as 20 mph. more

Allamakee County has 6 neighbours.

  • Waukon


According to census records, the population of Allamakee County decreased by 5.04% in 10 years.

Year Population % Change Method
2010 14,330 - census
2011 14,222 -0.76% estimation process
2012 14,149 -0.52% estimation process
2013 14,071 -0.55% estimation process
2014 14,062 -0.06% estimation process
2015 13,874 -1.36% estimation process
2016 13,851 -0.17% estimation process
2017 13,803 -0.35% estimation process
2018 13,852 0.35% estimation process
2019 13,687 -1.21% estimation process
2020 13,642 -0.33% estimation process

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People born in Allamakee County (1)

American politician (1858–1944) Coe I. Crawford was born in Allamakee County

Iowa Other Counties (more counties)

County Name Population Title
Indiana 820,445 A city located in the state of Iowa.
Polk County 494,281 County in Iowa, United States
Linn County 227,854 County in Oregon, United States
Des Moines 212,312 The capital of Iowa.
Scott County 173,216 County in Tennessee, United States
Johnson County 153,740 County in Iowa, United States
Cedar Rapids 134,027 The second most populous city in Iowa.
Black Hawk County 130,786 County in Iowa, United States
Woodbury County 103,138 County in Iowa, United States of America
Davenport 101,799 The most populous city in Scott County, Iowa.
Story County 98,237 County in Iowa, United States
Dubuque County 97,590 County in Iowa, United States
Dallas County 96,963 County in Iowa, United States
Pottawattamie County 93,328 County in Iowa, United States of America
Sioux City 82,651 The second most populous city in Iowa.
Iowa City 75,130 The most populous city in Johnson County, Iowa.