Map & Data

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Evictions in Polk and Dallas Counties

This map shows evictions in Polk and Dallas Counties between 2010 - 2020.

*For best viewing results, select only 1 county at a time within the layer list feature.

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Here is a list of frequently asked questions about the maps and data. Please contact us at for additional questions and/or inquiries.

Where did you acquire the eviction data you use in your study?

The eviction data we use was acquired directly from the Iowa Judicial Branch, which maintains a statewide record of all eviction cases that are submitted to local courts. Due to privacy rules, the Judicial Branch did not provide dwelling unit address information. You can reference our Methods section for a more detailed outline on our data collection process.

How do I use the map and what is the information displayed in the map?

The map consists of multiple layers of data, which you can select or deselect based on what other variables and features you want to display alongside the eviction data. The data displayed in the map includes eviction cases for Polk and Dallas Counties from January 2010 - December 2020.

What do the different markers on the map represent?

Each marker on the map represents eviction cases within a zip code area. If you click on a marker, you will get additional information about the number of eviction cases filed in a zip code area. When you select a marker on the map, you can get additional details about individual eviction cases by clicking on the right-hand arrow displayed on the blue pop-up box. You can also display demographic information from the American Community Survey on the map.

Why are there eviction cases showing outside the boundaries of Polk and Dallas Counties?

There were instances where a defendant moved since the filing of the court case and may have been involved in subsequent court matters. In such instances, the court would have an updated address for the defendant. Therefore, the eviction cases that show outside of the boundaries of Polk and Dallas Counties reflect the number of eviction cases we did not have enough information on to confirm the zipcode of the defendant at the time the eviction case was filed (of the unit a landlord was evicting them from).

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