The land area of New Castle County, DE was 426 in 2018. The land area of Delaware County, PA was 184 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.

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

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Geographic and Area Datasets Involving Delaware County, PA or New Castle County, DE

  • API

    Well Permits

    data.delaware.gov | Last Updated 2024-06-11T09:43:39.000Z

    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.

  • API

    Horseshoe Crab Spawning Survey

    data.delaware.gov | Last Updated 2022-10-06T19:41:25.000Z

    Delaware Bay shore survey data starting with 1999 which denotes peak spawning occurrences by day and lunar period, proportion of spawning in May (coinciding with shorebird stopovers), average water temperature, index values for female and male crabs per square meter by beach and bay-wide, the annual sex ratio, and index of abundance per beach.

  • API

    Park and Ride Locations Current Transportation

    data.pa.gov | Last Updated 2024-06-08T05:06:16.000Z

    PennDOT Official Park and Ride information that is currently available. This is not all inclusive.

  • API

    Aquatic Biological Monitoring Sampling Locations: Beginning 1980

    data.ny.gov | Last Updated 2024-05-02T15:02:49.000Z

    The Division of Water Stream Biomonitoring Unit (SBU) dataset contains the point sampling locations at which benthic macroinvertebrates, field chemistry, and at some locations, sediment, fish or diatoms have been collected as part of the Rotating Integrated Basin Studies (RIBS) program, Rapid Biological Assessments (RAS), or special studies. The data collected are used for water quality assessment (input to the Waterbody Inventory, completion of the 305(b) report and 303(d) list of impaired Waters) and for track-down of water quality problems. The data set is maintained by the Division of Water, Bureau of Water Assessment and Management, Stream Biomonitoring Unit.

  • API

    Delinquency Dispositions CY 2014 - Current By County as Reported by the Juvenile Court Judges' Commission

    data.pa.gov | Last Updated 2022-10-17T20:12:49.000Z

    This dataset represents the total number of delinquency dispositions processed by Pennsylvania juvenile courts in 2018. A disposition is defined as an allegation of delinquency disposed of by the juvenile probation department and/or the court. This dataset is contained within the Juvenile Court Judges' Commission’s Calendar Year (CY) 2018 Juvenile Court Annual Report; this report provides an overview of Pennsylvania juvenile court statistics, during 2018, to measure and quantify work across the state by juvenile justice professionals. In Pennsylvania, juvenile court jurisdiction extends over individuals who have been alleged to have committed a delinquent act, as defined by 42. Pa. C. S. § 6301 et seq., on or after their tenth birthday and prior to reaching eighteen years of age. Juvenile court supervision can extend until the individual is twenty-one years of age if the individual is currently under supervision. Age for purposes of this section was calculated from the juvenile’s date of birth to the date of the offense in the written allegation. Any one youth may be involved in a number of dispositions within a calendar year containing multiple allegations. There were 22,023 delinquency dispositions in Pennsylvania during 2018. This represents a 1.3% decrease from 2017 and a 13.4% decrease since 2014. Allegheny County reported a decrease of 17.0% from 2017 to 2018, and Philadelphia County reported a 5.9% decrease for this time period. One-third of the total dispositions occurred in the four jurisdictions reporting more than 1,000 dispositions; these jurisdictions include Philadelphia, Allegheny, York, and Delaware.

  • API

    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.

  • API

    MUNICIPAL_BOUNDARY

    data.pa.gov | Last Updated 2023-05-28T18:52:33.000Z

  • 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.

  • API

    SPDES Multi-Sector General Permit (MSGP) Facilities

    data.ny.gov | Last Updated 2023-04-14T19:16:46.000Z

    The SPDES Multi-Sector General Permit (MSGP), which is administered by the Department of Environmental Conservation (the Department), regulates stormwater discharges associated with industrial activity from a point source. The MSGP covers thirty one different industrial sectors which include activities such as mining, land transportation, and scrap recycling. The dataset displays information on facilities that have active MSGP coverage in New York State. Information included in the data set include the facility’s name, address, contact information, industrial sector(s), discharging waterbody, and location of the facility’s Stormwater Pollution Prevention Plan. For more information, please go to http://www.dec.ny.gov/chemical/62803.html.

  • API

    Public Crash Data

    data.delaware.gov | Last Updated 2024-06-05T16:15:23.000Z

    <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>The Delaware Department of Safety and Homeland Security (DSHS) is the official custodian of Delaware crash reports and is responsible for statewide crash data collection and dissemination. A crash report is a summary of information collected about a collision and is filled out by a Delaware law enforcement officer who is investigating the crash. The data contained on FirstMap and the Open Data Portal represents the best available information at DSHS and is not an official record of what transpired in a particular crash or for a particular crash type and does not contain personal information. This data is generated from crash reports and allows any member of the public to engage in interactive analysis and data exploration for the purpose of identifying, evaluating or planning the safety enhancement of potential crash sites, hazardous roadway conditions, or railway-highway crossings. This data is updated monthly and contains crashes that occurred since 2009 through six months ago. Official crash reports are confidential and are not a public record under the Delaware Freedom of Information Act. Authorized parties may contact the reporting police agency directly for official copies of crash reports (21 Del. C. §313).</SPAN></SPAN></P><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN> </SPAN></SPAN></P><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>DSHS is committed to bringing public awareness to crash information. The Office of Highway Safety’s annual reports (</SPAN></SPAN><A href="https://ohs.delaware.gov/reports.shtml" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>https://ohs.delaware.gov/reports.shtml</SPAN></SPAN></A><SPAN><SPAN>), the Office of Highway Safety’s annual safety plan (</SPAN></SPAN><A href="https://ohs.delaware.gov/reports.shtml" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>https://ohs.delaware.gov/reports.shtml</SPAN></SPAN></A><SPAN><SPAN>), and the Delaware State Police Traffic Statistical Reports (</SPAN></SPAN><A href="https://dsp.delaware.gov/reports/" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>https://dsp.delaware.gov/reports/</SPAN></SPAN></A><SPAN><SPAN>) also contain a variety of information and data. In addition, the State of Delaware’s Strategic Highway Safety Plan is available at </SPAN></SPAN><A href="https://deldot.gov/Programs/DSHSP/index.shtml" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>https://deldot.gov/Programs/DSHSP/index.shtml</SPAN></SPAN></A><SPAN> and is updated every five years.</SPAN></P></DIV></DIV></DIV>