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The population count of Anne Arundel County, MD was 567,696 in 2018. The population count of Harford County, MD was 251,025 in 2018. The population count of Chesterfield County, VA was 339,447 in 2018.

Population

Population Change

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.

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Demographics and Population Datasets Involving Harford County, MD or Anne Arundel County, MD or Chesterfield County, VA

  • API

    MDOT/MVA Electric and Plug-in Hybrid Vehicle Registrations by County as of each month end from July 2020 to September 2024

    opendata.maryland.gov | Last Updated 2024-10-18T15:58:04.000Z

    Total number of electric and plug-in hybrid vehicles with active MD registrations by county as of each month end from July 2020 to September 2024

  • API

    MD COVID-19 - Cases by County

    opendata.maryland.gov | Last Updated 2024-10-29T15:25:20.000Z

    <b>Note:</b> Starting April 27, 2023 updates change from daily to weekly. <b>Summary</b> The cumulative number of positive COVID-19 cases among Maryland residents within a single Maryland jurisdiction. <b>Description</b> The MD COVID-19 - Cases by County data layer is a collection of positive COVID-19 test results that have been reported each day by the local health department via the ESSENCE system. <b>Terms of Use</b> The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

  • API

    Maryland Resident Population Per Square Mile: 2010-2020

    opendata.maryland.gov | Last Updated 2024-03-11T18:51:03.000Z

    Resident population density for Maryland and Jurisdictions per square mile from 2010 to 2020. Source: U.S. Bureau of Census

  • API

    MD COVID-19 - Confirmed Deaths by County

    opendata.maryland.gov | Last Updated 2024-10-29T15:27:48.000Z

    <b>Note:</b> Starting April 27, 2023 updates change from daily to weekly. <b>Summary</b> The cumulative number of confirmed COVID-19 deaths among Maryland residents within a single Maryland jurisdiction. <b>Description</b> The MD COVID-19 - Confirmed Deaths by County data layer is a collection of the statewide confirmed COVID-19 related deaths that have been reported each day by the Vital Statistics Administration that have occurred in each Maryland jurisdiction. A death is classified as confirmed if the person had a laboratory-confirmed positive COVID-19 test result. Some data on deaths may be unavailable due to the time lag between the death, typically reported by a hospital or other facility, and the submission of the complete death certificate. This data layer does not include probable deaths. Probable deaths are available from the MD COVID-19 - Probable Deaths by County data layer. <b>Terms of Use</b> The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

  • API

    Maryland Median Household Income by year with margin of error: 2010-2022

    opendata.maryland.gov | Last Updated 2024-03-07T21:30:37.000Z

    The data consist of the median household income by year in Maryland and its jurisdictions with the margin of error for 2010-2022. MOE= Margin of Error for the 90% confidence interval. Source from the U.S. Census Bureau, Small Area Income and Poverty Estimates, November 2023.

  • API

    Maryland Total Change in Resident Population: 2020-2022

    opendata.maryland.gov | Last Updated 2024-03-11T15:54:07.000Z

    Total Change in Resident Population in Maryland and its Jurisdictions by year from July 1, 2020 to July 1, 2022.

  • API

    Population Estimates 2010-2022

    opendata.maryland.gov | Last Updated 2024-03-11T19:34:15.000Z

    Maryland Total Resident Population from 2010 - 2022 based on US Census Data

  • API

    Maryland Total Migration: 2001-2022

    opendata.maryland.gov | Last Updated 2024-03-11T19:02:17.000Z

    Maryland Total (International and Domestic) Migration from 2001 to 2022. Source from the Population Division, U.S. Census Bureau.

  • API

    Maryland Domestic Migration: 2001-2022

    opendata.maryland.gov | Last Updated 2024-03-07T17:01:53.000Z

    Domestic Migration in Maryland and its Jurisdictions from 2001 to 2022. Domestic migration will also include the net change in group quarters population. Source: Population Division, U.S. Census bureau, March 2023.

  • API

    MD COVID-19 - Vaccinations by County

    opendata.maryland.gov | Last Updated 2023-04-27T15:41:54.000Z

    Regarding all Vaccination Data The date of Last Update is 4/21/2023. Additionally on 4/27/2023 several COVID-19 datasets were retired and no longer included in public COVID-19 data dissemination. See this link for more information https://imap.maryland.gov/pages/covid-data <b>Summary</b> The cumulative number of COVID-19 vaccinations within a single Maryland jurisdiction. <b>Description</b> The MD COVID-19 - Vaccinations by County data layer is a collection of COVID-19 vaccinations that have been reported each day into ImmuNet. <b>Terms of Use</b> The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.