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Sioux City Times

Thursday, October 2, 2025

Census Bureau reports Monona County population was 8,730 in 2019

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Monona County had a population of 8,730 people in 2019, according to U.S. Census Bureau data obtained by the Sioux City Times.

The median age was 46, with 52.1 percent of the total population being female and 47.9 percent male.

The state's total population in 2019 was 3,139,508.

An agency of the U.S. Federal Statistical System, the Census Bureau is responsible for compiling statistical facts about the American people, places and economy. Data for this story was compiled from the bureau’s American Community Survey. Information from the survey helps to determine how federal and state funds are distributed.

Monona County population by sex

Estimated NumberPercent of total population
Male4,18147.9
Female4,54952.1
Total Population8,730100

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