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Linn County Population

All Linn County population data above are from the US Census Bureau.

Linn County Demographics Summary

population icon Population

With 221,661 people, Linn County is the 2nd most populated county in the state of Iowa out of 99 counties. But watch out, Linn County, because Johnson County with 146,547 people and Scott County with 172,474 people are right behind you.

race icon Race & Ethnicity

The largest Linn County racial/ethnic groups are White (88.2%) followed by Black (4.1%) and Hispanic (2.9%).

income icon Median Income

In 2015, the median household income of Linn County residents was $59,322. Linn County households made slightly more than Cedar County households ($59,047) and Delaware County households ($58,274) . However, 9.8% of Linn County residents live in poverty.

age icon Median Age

The median age for Linn County residents is 37.1 years young.

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The population data for Linn County are from the Census 2000, Census 2010, the Census' American Community Survey 2015 5-year estimates and the Census' 2016 Population Estimates. The demographic data for Cedar County, Delaware County, Johnson County, and Scott County are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2015 5-year estimates, and were downloaded on December 2016. Check out our FAQ section for more details.


Starter Report Sample

The District of Columbia Starter Report, shown on the left, will give you a good idea of what to expect in a Starter Report. The Linn County, IA report will have the same data, charts & graphs as this sample.

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