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The population density of New Castle County, DE was 1,302 in 2018. The population density of Baltimore County, MD was 1,383 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 New Castle County, DE or Baltimore County, MD

  • 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

    MDTA Accidents

    opendata.maryland.gov | Last Updated 2023-04-12T13:22:44.000Z

    Includes accidents that occured on MD Transportation Authority (MDTA) facilities, or were within a concurrent jurisdiction and were responded to by MDTA Police. MDTA facilities are the Francis Scott Key Bridge (I-695), John F. Kennedy Memorial Highway (I-95), Thomas J. Hatem Memorial Bridge (US 40), Fort McHenry Tunnel (I-95), Baltimore Harbor Tunnel (I-895), the Bay Bridge (US 50/301), Governor Harry W. Nice Memorial Bridge (US 301), and Intercounty Connector (ICC/MD200). MDTA Police are also responsible for accidents at BWI Airport and the Port of Baltimore. This dataset will be updated monthly by the MD Transportation Authority

  • API

    Inmate Population

    data.delaware.gov | Last Updated 2024-06-01T10:30:19.000Z

    The Delaware Department of Correction (DOC) operates four prison facilities (Level V), eight quasi-incarceration community corrections facilities that serve as violation of probation centers or work release centers (Level IV), and five Probation & Parole locations (Levels III, II, and I). Offenders may also be supervised while on home confinement, or the offender may be supervised on an administrative basis only while restitution is paid. Some offenders are physically housed at the Delaware Psychiatric Center while in the custody of the DOC. This dataset provides a snapshot of the offender population in custody or under supervision at these various locations on the last day of each calendar month. A count of how many offenders by the year, month (snapshot of last day of month), county, type of institution, institution name, sentence type, gender, race, and ethnicity can be produced by selecting the desired variable in each category. Questions about offender data can be directed to the DOC’s Planning & Research Unit. Instructions for submitting a data request can be found here: http://www.doc.delaware.gov/datarequests.shtml. The DOC’s annual reports (http://www.doc.delaware.gov/annualReport.shtml) also contain a variety of information and data.

  • API

    MD COVID-19 - Cases per 100K population, by jurisdiction

    opendata.maryland.gov | Last Updated 2024-06-06T19:08:30.000Z

    <b>Note:</b> Starting April 27, 2023 updates change from daily to weekly. <b>Summary</b> The rate of confirmed COVID-19 cases among Marylanders per 100,000 people in each Maryland jurisdiction. <b>Description</b> The MD COVID-19 cases per 100K population, by jurisdiction layer is the rate of confirmed daily COVID-19 cases among Marylanders per 100,000 people in each Maryland jurisdiction. This rate is a 7-day average, calculated using the CasesByCounty layer and the 2019 estimated county populations (Maryland Department of Planning). Any negative value may be attributed to changes in reporting by jurisdiction. <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

    MD COVID-19 - Total Population Tested by County

    opendata.maryland.gov | Last Updated 2022-08-23T10:34:42.000Z

    <b>Summary</b> This layer is deprecated (Last updated 3/14/2022). The total number of residents who have been administered at least one COVID-19 test in each Maryland jurisdiction. <b>Description</b> Data represent the number of Maryland residents, both in number and by percent of the population, who have been tested for COVID-19 at least once each Maryland jurisdiction. <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

    MD COVID-19 - Total Deaths in Congregate Facility Settings (Nursing Homes, Assisted Living, State and Local Facilities and Group Homes +10 Residents) by County

    opendata.maryland.gov | Last Updated 2022-08-23T11:58:58.000Z

    <b>This layer has been DEPRECATED</b> (last updated12/1/2021). This was formerly a weekly update. <b>Summary</b> The Outbreak-Associated Cases in Congregate Living data dashboard on coronavirus.maryland.gov was redesigned on 11/17/21 to align with other outbreak reporting. Visit https://opendata.maryland.gov/dataset/MD-COVID-19-Congregate-Outbreak/ey5n-qn5s to view Outbreak-Associated Cases in Congregate Living data as reported after 11/17/21. Confirmed COVID-19 deaths among Maryland residents within a single Maryland jurisdiction who live and work in congregate living facilities for the reporting period. <b>Description</b> The MD COVID-19 - Total Deaths in Congregate Facility Settings data layer is a total of deaths confirmed by a positive COVID-19 test result that have been reported to MDH in nursing homes, assisted living facilities, group homes of 10 or more and state and local facilities in each Maryland jurisdiction for the reporting period. Data are reported to MDH by local health departments, the Department of Public Safety and Correctional Services and the Department of Juvenile Services. To appear on the list, facilities report at least one confirmed case of COVID-19 over the prior 14 days. Facilities are removed from the list when health officials determine 14 days have passed with no new cases and no tests pending. The list provides a point-in-time picture of COVID-19 case activity among these facilities. Numbers reported for each facility listed reflect totals ever reported for deaths. Data are updated once weekly. <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

    District Court of Maryland Eviction Case Data

    opendata.maryland.gov | Last Updated 2024-05-29T17:22:32.000Z

    A statewide listing of District Court of Maryland Eviction Case Data & its Process. Maryland enacted a new law in 2022 requiring the District Court of Maryland to collect and report eviction case data. Additionally, the Maryland Department of Housing and Community Development is required to host a dashboard for the public to view and analyze the information, as well as produce an annual report on evictions. The District Court began collecting the eviction case data required under the law on January 1, 2023, and the public dashboard was launched in May 2023.

  • API

    MD COVID-19 - Total Cases in Congregate Facility Settings (Nursing Homes, Assisted Living, State and Local Facilities and Group Homes +10 Residents) by County

    opendata.maryland.gov | Last Updated 2022-08-23T11:51:24.000Z

    <b>This layer has been DEPRECATED</b> (last updated 12/1/2021). This was formerly a weekly update. <b>Summary</b> The Outbreak-Associated Cases in Congregate Living data dashboard on coronavirus.maryland.gov was redesigned on 11/17/21 to align with other outbreak reporting. Visit https://opendata.maryland.gov/dataset/MD-COVID-19-Congregate-Outbreak/ey5n-qn5s to view Outbreak-Associated Cases in Congregate Living data as reported after 11/17/21. Confirmed COVID-19 cases among Maryland residents within a single Maryland jurisdiction who live and work in congregate living facilities for the reporting period. <b>Description</b> The MD COVID-19 - Total Cases in Congregate Facility Settings data layer is a total of positive COVID-19 test results have been reported to MDH in nursing homes, assisted living facilities, group homes of 10 or more and state and local facilities in each Maryland jurisdiction for the reporting period. Data are reported to MDH by local health departments, the Department of Public Safety and Correctional Services and the Department of Juvenile Services. To appear on the list, facilities report at least one confirmed case of COVID-19 over the prior 14 days. Facilities are removed from the list when health officials determine 14 days have passed with no new cases and no tests pending.The list provides a point-in-time picture of COVID-19 case activity among these facilities. Numbers reported for each facility listed reflect totals ever reported for cases. Data are updated once weekly. <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

    2017 Land Use Land Cover

    data.delaware.gov | Last Updated 2023-01-12T18:50:34.000Z

    <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>This digital geospatial dataset represents land use land cover polygons as defined by the Delaware Modified Anderson System derived from: A Land Use and Land Cover Classification System for Use with Remote Sensor Data, U. S. Geological Survey Professional Paper 964, 1976; edited by Delaware in 2007, and 2012. The LULC update was performed using ArcGIS software tools, coding menus, and interactive photo-interpretative mapping techniques. Three relevant fields are included in the dataset attribute table: </SPAN></SPAN></P><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN /><SPAN /></P><UL><LI><P STYLE="text-align:Justify;"><SPAN STYLE="font-weight:bold;"><SPAN>“LULC</SPAN></SPAN><SPAN STYLE="font-weight:bold;text-decoration:underline;"><SPAN>_</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>CODE2017”</SPAN></SPAN><SPAN> – Delaware Modified Anderson System numeric code per 2017 polygons</SPAN></P></LI><LI><P STYLE="text-align:Justify;"><SPAN /><SPAN STYLE="font-weight:bold;">“LULC</SPAN><SPAN STYLE="font-weight:bold;text-decoration:underline;"><SPAN>_</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>CATEGORY2017”</SPAN></SPAN><SPAN> – Delaware Modified Anderson System category description per 2017 polygons</SPAN></P></LI><LI><P STYLE="text-align:Justify;"><SPAN /><SPAN STYLE="font-weight:bold;">“LULC_CATEGORY2017_CONDENSED” </SPAN><SPAN>- Delaware Modified Anderson System category description per 2017 polygons with reduced number of selected categories for enhanced viewing and comprehension.</SPAN></P></LI><LI><P STYLE="text-align:Justify;"><SPAN /><SPAN STYLE="font-weight:bold;">“NCC_RES_DENSITY2017”</SPAN><SPAN><SPAN> - Additional residential density classes applied specifically to New Castle County as follows: </SPAN></SPAN></P></LI></UL><P STYLE="text-indent:48;margin:0 0 0 48;"><SPAN><SPAN>1 = Very Low Density Residential 5 - 20 acre lots, based on parcel use categories</SPAN></SPAN></P><P STYLE="text-indent:48;margin:0 0 0 48;"><SPAN><SPAN>2 = Low Density Residential 5 - 0.5 acre lot </SPAN></SPAN></P><P STYLE="text-indent:48;margin:0 0 0 48;"><SPAN><SPAN>3 = Medium Density Residential 2 du/acre - 8 du/acre (0.5 - .125 acre lot)</SPAN></SPAN></P><P STYLE="text-indent:48;margin:0 0 0 48;"><SPAN><SPAN>4 = High Density Residential &gt;8 du/acre (&lt;.125 acre lot)</SPAN></SPAN></P><UL><LI><P STYLE="text-align:Justify;"><SPAN STYLE="font-weight:bold;"><SPAN>“LULC_CODE2012”</SPAN></SPAN><SPAN> – Delaware Modified Anderson System numeric code per 2012 polygons</SPAN></P></LI><LI><P STYLE="text-align:Justify;"><SPAN /><SPAN STYLE="font-weight:bold;">“LULC_CATEGORY2012”</SPAN><SPAN><SPAN> – Delaware Modified Anderson System category description per 2012 polygons.</SPAN></SPAN></P></LI></UL></DIV></DIV></DIV>

  • API

    Waste Tire Abatement Sites

    data.ny.gov | Last Updated 2022-08-12T17:59:04.000Z

    Information on designated waste tire abatement sites in New York State, including approximate size, location, and abatement status.