Poweshiek County, Iowa

Poweshiek County: County in Iowa, United States

About

Poweshiek County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 18,914 and a population density of 12 people per km². After 10 years in 2020 county had an estimated population of 18,381 inhabitants. Its county seat is Montezuma. The county was created 181 years ago in 1842.

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

Quick Facts about Poweshiek County

Population : 18,381 (2020)
Country : United States of America
State : Iowa (United States)
Area : 1518 km2
Water as percent of area : 0.2%
Land as percent of area : 99.8%
Altitude : 961 feet / 293 meters
Capital : Montezuma
Establishment : January 01, 1843
Time Zone : UTC−05:00
Local time : 12:22:33 (21st November 2024)
Density : 12 Pop. per km² as of 2020
Population growth : -2.9% (2010-2020)
Poweshiek County IA Courthouse image
Poweshiek County IA Courthouse
Poweshiek County IA Courthouse image

Geography

Poweshiek County is located at 41°41'11"N 92°31'53"W (41.6864400, -92.5314700). It has 2 neighbors: Mahaska County and Tama County.

Poweshiek County map

The largest city of Poweshiek County is Grinnell with a population of 9,096. Other cities include, Brooklyn population 1,390, Montezuma population 1,388, Malcom population 275 and Deep River population 268. See all Poweshiek County cities & populated places.

Poweshiek County Populated Places

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

City Name Population Title
Grinnell 9,096 City in Poweshiek County, Iowa, United States
Brooklyn 1,390 City in Iowa, United States
Montezuma 1,388 City in Poweshiek County, Iowa, United States
Malcom 275 City in Poweshiek County, Iowa, United States
Deep River 268 American city in Iowa
Searsboro 145 Human settlement in Poweshiek County, Iowa, United States of America
Hartwick 81 American city in Iowa
Guernsey 61 City in Poweshiek County, Iowa, United States of America

Poweshiek County has 2 neighbours.

  • Montezuma

Demographics

According to census records, the population of Poweshiek County decreased by 2.9% in 10 years.

Year Population % Change Method
1900 19,414 - demographic balance
1910 19,589 0.89% census
2010 18,914 -3.57% census
2011 18,896 -0.1% estimation process
2012 18,728 -0.9% estimation process
2013 18,606 -0.66% estimation process
2014 18,608 0.01% estimation process
2015 18,358 -1.36% estimation process
2016 18,279 -0.43% estimation process
2017 18,334 0.3% estimation process
2018 18,467 0.72% estimation process
2019 18,504 0.2% estimation process
2020 18,381 -0.67% estimation process

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