The land area of New Castle County, DE was 426 in 2018. The land area of Baltimore County, MD was 598 in 2018.

Land Area

Water Area

Land area is a measurement providing the size, in square miles, of the land portions of geographic entities for which the Census Bureau tabulates and disseminates data. Area is calculated from the specific boundary recorded for each entity in the Census Bureau's geographic database. Land area is based on current information in the TIGER® data base, calculated for use with Census 2010.

Water Area figures include inland, coastal, Great Lakes, and territorial sea water. Inland water consists of any lake, reservoir, pond, or similar body of water that is recorded in the Census Bureau's geographic database. It also includes any river, creek, canal, stream, or similar feature that is recorded in that database as a two- dimensional feature (rather than as a single line). The portions of the oceans and related large embayments (such as Chesapeake Bay and Puget Sound), the Gulf of Mexico, and the Caribbean Sea that belong to the United States and its territories are classified as coastal and territorial waters; the Great Lakes are treated as a separate water entity. Rivers and bays that empty into these bodies of water are treated as inland water from the point beyond which they are narrower than 1 nautical mile across. Identification of land and inland, coastal, territorial, and Great Lakes waters is for data presentation purposes only and does not necessarily reflect their legal definitions.

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.

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Geographic and Area Datasets Involving New Castle County, DE or Baltimore County, MD

  • 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

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    Maryland Total New Parcels Inside PFA For Residential Development: 2010-2022

    opendata.maryland.gov | Last Updated 2024-03-11T21:16:25.000Z

    Maryland Total New Parcels Outside Priority Funding Area (PFA) - New Parcel Development for Residential Development from 2010 through and including 2022 based on the PFA boundaries and MdProperty View Edition year data referenced below. PFAs are existing communities and places where local governments want State investment to support future growth. 2010-2012 Data Sources: -PFA boundaries dated 08/21/2014 -MdProperty View 2012 Edition for all jurisdictions except Allegany and Garrett counties, which are based on MdProperty View 2011 Edition updated with August 2014 parcel data from the State Department of Assessments and Taxation. 2013-2015 Data Sources: -PFA boundaries dated 08/29/2016 -MdProperty View 2013/14 Edition parcel data for all jurisdictions in Maryland except the following: Baltimore, Caroline, Cecil, Dorchester, Harford, Kent, Queen Anne’s, Talbot, and Wicomico counties and Baltimore City, 2013/2014 Edition data updated with June 2016 parcel data from Assessments, and Anne Arundel and Carroll Counties, 2012 Edition data updated with June 2016 parcel data from Assessments. For new parcels included in the June 2016 update, parcel point placement was done via geocoding and not via placement by deed and/or plat. 2016-2021 Data Sources: -PFA boundaries dated 08/29/2016 -MDProperty View 2017/18 Edition parcel data for all jurisdictions in Maryland except Anne Arundel and Montgomery Counties.

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    Maryland Total New Parcels Outside PFA For Residential Development: 2010-2022

    opendata.maryland.gov | Last Updated 2024-03-11T21:18:55.000Z

    Maryland Total New Parcels Outside Priority Funding Area (PFA) - New Parcel Development for Residential Development from 2010 through and including 2022 based on the PFA boundaries and MdProperty View Edition year data referenced below. PFAs are existing communities and places where local governments want State investment to support future growth. 2010-2012 Data Sources: -PFA boundaries dated 08/21/2014 -MdProperty View 2012 Edition for all jurisdictions except Allegany and Garrett counties, which are based on MdProperty View 2011 Edition updated with August 2014 parcel data from the State Department of Assessments and Taxation. 2013-2015 Data Sources: -PFA boundaries dated 08/29/2016 -MdProperty View 2013/14 Edition parcel data for all jurisdictions in Maryland except the following: Baltimore, Caroline, Cecil, Dorchester, Harford, Kent, Queen Anne’s, Talbot, and Wicomico counties and Baltimore City, 2013/2014 Edition data updated with June 2016 parcel data from Assessments, and Anne Arundel and Carroll Counties, 2012 Edition data updated with June 2016 parcel data from Assessments. For new parcels included in the June 2016 update, parcel point placement was done via geocoding and not via placement by deed and/or plat. 2016-2022 Data Sources: -PFA boundaries dated 08/29/2016 -MDProperty View 2017/18 Edition parcel data for all jurisdictions in Maryland except Anne Arundel and Montgomery Counties.

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    Well Permits

    data.delaware.gov | Last Updated 2024-05-29T09:43:43.000Z

    A listing of permits for water wells. The dataset includes information such as location (tax parcel), capacity, date and permit number. Specific location data, for some well types, is redacted per state law.

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    MC311 Service Requests

    data.montgomerycountymd.gov | Last Updated 2024-05-30T05:17:39.000Z

    Information on all MC311 Service Requests received (via email or phone) since July 1, 2012. This data is updated daily. The PIO’s business requirement includes adding the following data elements to the new and enhanced open data site being proposed by DTS. This data is derived from requests for service which originate in the CSC, from the County’s web portal, and via “walk-ins” from county departments including but not limited to DHCA. • SLA – to indicate the number of days in county business days the department has to fulfill the request. County business days must exclude weekends, county holidays and days when the county is closed due to inclement weather (snow days, etc) per CountyStat’s business requirement. This field has been published in the existing MC311 Service Requests dataset with the field name ‘Attached Solution SLA Days’. • +/- SLA –to indicate the number of days a service request is over or under SLA as is currently measured by CountyStat. The following 4 fields will be added to fulfill this line item  # of days open – Number of County Business days the Service Request has been opened.  Within SLA Window? - To indicate the number of days a service request is over or under SLA as is currently measured by CountyStat.  SLA Yes – Number of days to fulfill the service request is under the SLA window.  SLA No -– Number of days to fulfill the service request is over the SLA window.

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    Maryland Total Acres Inside PFA For Residential Development: 2006-2022

    opendata.maryland.gov | Last Updated 2024-03-11T20:45:28.000Z

    Maryland Total Acres Inside Priority Funding Areas (PFA) for residential development from 2012 through and including 2022 based on the PFA boundaries and MdProperty View Edition year data referenced below. PFAs are existing communities and places where local governments want State investment to support future growth. 2006-2022 Data Sources: • PFA boundaries dated 08/21/2014 • MdProperty View 2012 Edition for all jurisdictions except Allegany and Garrett counties, which are based on MdProperty View 2011 Edition updated with August 2014 parcel data from the State Department of Assessments and Taxation. 2013-2015 Data Sources: • PFA boundaries dated 08/29/2016 • MdProperty View 2013/14 Edition parcel data for all jurisdictions in Maryland except the following: Baltimore, Caroline, Cecil, Dorchester, Harford, Kent, Queen Anne’s, Talbot, and Wicomico counties and Baltimore City, 2013/2014 Edition data updated with June 2016 parcel data from Assessments, and Anne Arundel and Carroll Counties, 2012 Edition data updated with June 2016 parcel data from Assessments. For new parcels included in the June 2016 update, parcel point placement was done via geocoding and not via placement by deed and/or plat.

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    Maryland Total Acres Outside PFA For Residential Development: 2006-2022

    opendata.maryland.gov | Last Updated 2024-03-11T20:34:15.000Z

    Maryland Total Acres outside Priority Funding Areas (PFA) for residential development from 2006 through and including 2022 based on the PFA boundaries and MdProperty View Edition year data referenced below. PFAs are existing communities and places where local governments want State investment to support future growth. 2006-2012 Data Sources: -PFA boundaries dated 08/21/2014 -MdProperty View 2012 Edition for all jurisdictions except Allegany and Garrett counties, which are based on MdProperty View 2011 Edition updated with August 2014 parcel data from the State Department of Assessments and Taxation. 2013-2015 Data Sources: -PFA boundaries dated 08/29/2016 -MdProperty View 2013/14 Edition parcel data for all jurisdictions in Maryland except the following: Baltimore, Caroline, Cecil, Dorchester, Harford, Kent, Queen Anne’s, Talbot, and Wicomico counties and Baltimore City, 2013/2014 Edition data updated with June 2016 parcel data from Assessments, and Anne Arundel and Carroll Counties, 2012 Edition data updated with June 2016 parcel data from Assessments. For new parcels included in the June 2016 update, parcel point placement was done via geocoding and not via placement by deed and/or plat.

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    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.

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    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.

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    Citizen Statewide Lake Monitoring Assessment Program (CSLAP) Lakes

    data.ny.gov | Last Updated 2024-03-01T18:08:08.000Z

    The dataset represents the lakes participating in the Citizen Statewide Lake Monitoring Assessment Program (CSLAP). CSLAP is a volunteer lake monitoring and education program that is managed by DEC and New York State Federation of Lake Associations (NYSFOLA). The data collected through the program is used to identify water quality issues, detect seasonal and long term patterns, and inform volunteers and lake residents about water quality conditions in their lake. The program has delivered high quality data to many DEC programs for over 25 years.The dataset catalogs CSLAP lake information; including: lake name, lake depth, public accessibility, trophic status, watershed area, elevation, lake area, water quality classification, county, town, CSLAP status, years sampled, and last year sampled.