The population count of Baltimore County, MD was 827,625 in 2018.


Population Change

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

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Demographics and Population Datasets Involving Baltimore County, MD

  • API

    Choose Maryland: Compare Metros - Demographics | Last Updated 2019-11-15T14:47:58.000Z

    Population and income profile - totals, median household.

  • API

    Maryland Resident Population Per Square Mile: 2010-2020 | Last Updated 2022-04-08T18:59:46.000Z

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

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    Choose Maryland: Compare Counties - Demographics | Last Updated 2019-12-13T12:53:02.000Z

    Population profile - total, rate of change, age, and density.

  • API

    Maryland Total Change in Resident Population: 2020-2021 | Last Updated 2022-10-12T19:33:39.000Z

    Total Change in Resident Population in Maryland and its Jurisdictions by year from July 1, 2020 to July 1, 2021.

  • API

    Maryland Median Household Income By Year With Margin Of Error: 2010-2020 | Last Updated 2022-10-07T20:48:17.000Z

    The data consist of the median household income by the year in Maryland and the margin of error of the median income from 2010-2020. MOE= Margin of Error for the 90% confidence interval. Source from the U.S. Census Bureau, Small Area Income and Poverty Estimates, May 2021.

  • API

    County Board of Education - Spending Disclosures | Last Updated 2023-05-17T19:36:24.000Z

    PLEASE READ THIS DATASET DESCRIPTION IN FULL BEFORE EXPORTING ANY DATA. The data compiled in this dataset was provided by each County Board of Education. The data provides records of vendors that receive payments of $25,000 or more during a fiscal year from the County Board of Education. Chapter 541 of the Acts of 2019 requires each county school board must annually report (1) the name of a payee receiving a payment; (2) the location of a payee by postal zip code; (3) the amount of a payment; (4) for the Baltimore County Board of Education, the purpose for the payment and whether the payee is a minority business enterprise; and (5) for the Prince George’s County Board of Education, the budget data prepared under § 5-101 of the Education Article. The bill defines a “payee” as any party who receives an aggregate payment of $25,000 in a fiscal year from a school board. A “payee” does not include (1) a public school employee with respect to the employee’s compensation; (2) a public school retiree with respect to the retiree’s retirement allowance; or (3) in Baltimore County, a third-party payee that accepts specified employee payroll-related payments. All questions in regards to this data should be directed to the Maryland Department of Budget and Management or the individual county board of education(s).

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    MD COVID-19 - Confirmed Deaths by County | Last Updated 2023-09-19T14:47:09.000Z

    <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.

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    Population Estimates 2010-2021 | Last Updated 2022-11-08T00:19:24.000Z

    Maryland Total Resident Population from 2010 - 2021 based on US Census Data

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    Maryland Domestic Migration: 2010-2021 | Last Updated 2022-09-29T21:33:58.000Z

    Domestic Migration in Maryland and its Jurisdictions from 2010 to 2021. Domestic migration will also include the net change in group quarters population. Source: Population Division, U.S. Census bureau, May 2021.

  • API

    Prevalence and Mean of Dental Caries (Cavities) among Maryland School Children, 2005-2006 | Last Updated 2018-04-06T13:25:19.000Z

    This is the weighted prevalence of 1,276 schoolchildren. 1,276 out of 1,280 cases examined had prevalence available. One out of 1,276 cases had grade information missed, 564 were in Kindergarten and 711 in 3rd grade. Prevalence is defined as occurrence of any caries among all selected population. Mean is the average number of teeth with caries among students with caries in the selected population. Region Identifiers and Constituent Counties: Western (Allegany, Frederick, Garrett, Washington); Central D.C. (Howard, Montgomery, Prince George’s); Southern (Calvert, Charles, St. Mary’s); Central Baltimore (Anne Arundel, Baltimore City, Baltimore County, Carroll, Harford); Eastern Shore (Caroline, Cecil, Dorchester, Kent, Queen Anne’s, Somerset, Talbot, Wicomico, Worcester).