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The population density of Marion County, OR was 284 in 2018. The population density of Umatilla County, OR was 24 in 2018.

Population Density

Population Density is computed by dividing the total population by Land Area Per Square Mile.

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

1. ODN datasets and APIs are subject to change and may differ in format from the original source data in order to provide a user-friendly experience on this site.

2. To build your own apps using this data, see the ODN Dataset and API links.

3. If you use this derived data in an app, we ask that you provide a link somewhere in your applications to the Open Data Network with a citation that states: "Data for this application was provided by the Open Data Network" where "Open Data Network" links to http://opendatanetwork.com. Where an application has a region specific module, we ask that you add an additional line that states: "Data about REGIONX was provided by the Open Data Network." where REGIONX is an HREF with a name for a geographical region like "Seattle, WA" and the link points to this page URL, e.g. http://opendatanetwork.com/region/1600000US5363000/Seattle_WA

Geographic and Population Datasets Involving Umatilla County, OR or Marion County, OR

  • API

    "Electric Motor Only" Waterways in Oregon

    data.oregon.gov | Last Updated 2013-05-07T21:26:32.000Z

    Some waterbodies in Oregon have been designated "electric motor only" by Oregon Administrative Rule or statute. These waterbodies have been designated based on their topography, size and traditional boating uses.

  • API

    Voter Registration Data Prior to Redistricting

    data.oregon.gov | Last Updated 2022-03-10T21:14:46.000Z

    Registered voters in Oregon prior to October 2021. Find more elections and voter statistics for Oregon at https://sos.oregon.gov/elections/Pages/electionsstatistics.aspx

  • API

    Long-Term Rural (LTR) Enterprise Zone EZ - Facilities Reports

    data.oregon.gov | Last Updated 2024-02-21T18:54:01.000Z

    Long​-Term Rural Enterprise Zone Facilities Program: Extends property tax abatement for 7–15 years, compared to the standard three to five years, in most rural enterprise zones. Any type of business activity is eligible, but these incentives depend on local approval and minimum levels for investment size, job creation and employee compensation. [Reporting Schedule] - The Long-Term Rural Enterprise Zone Facilities Program Reports are usually received by the Oregon Department of Revenue (DOR) the first quarter of the year. The most recent reports are provided in this dataset.

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    Voting Districts by Precinct

    data.oregon.gov | Last Updated 2024-05-03T21:12:41.000Z

    Oregon Voting Districts by Precinct

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    Cooperative Weed Management Areas

    data.oregon.gov | Last Updated 2018-07-07T23:58:47.000Z

    List of contact information for all Cooperative Weed Management Areas in Oregon, including associations with county programs. See also https://data.oregon.gov/d/9ut9-4jvn/data for County Weed Control Programs.

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    House BIll 2402 Grantee List

    data.oregon.gov | Last Updated 2024-04-10T18:07:04.000Z

    This lists all organizations that have received a grant under House Bill 2402 to help homeless individuals obtain a copy of their birth certificate at no cost. If you have questions about this data, please email leila.ortega@oha.oregon.gov.

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    Oregon Library Directory

    data.oregon.gov | Last Updated 2024-05-28T16:46:37.000Z

    This data contains basic contact and location information on public, academic, special, tribal, and volunteer libraries in Oregon. Data maintained by the State Library of Oregon and updated quarterly.

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    Total Boat Use By County

    data.oregon.gov | Last Updated 2011-11-07T15:55:05.000Z

    Triennial Survey Results for 2010

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    State of Oregon Social Media Sites

    data.oregon.gov | Last Updated 2024-02-16T20:53:37.000Z

    List of social media sites by agency

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    Oregon Consumer Complaints

    data.oregon.gov | Last Updated 2023-07-25T22:20:52.000Z

    Consumer complaints registered with the Oregon Dept. of Justice. The database of consumer complaints is derived from consumer contacts for the years of 2017 - 2019 and is for informational purposes only. This dataset may not offer a completely accurate or comprehensive account of every incident. Several factors, including a company’s size and volume of transactions, may affect the likelihood of a consumer complaint being filed. The number of complaints about a business may not be a reliable measure as to whether it is appropriately conducting business. The information in this dataset is updated as soon as possible. However, recently submitted complaints may not be immediately available. The statements in this dataset do not necessarily reflect the opinion of the DOJ. For more information, see http://www.doj.state.or.us/finfraud/index.shtml