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The population density of Essex County, NJ was 6,287 in 2018. The population density of Philadelphia County, PA was 11,749 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 Essex County, NJ or Philadelphia County, PA

  • API

    COVID-19 Aggregate Death Data Current Monthly County Health

    data.pa.gov | Last Updated 2024-05-08T15:02:53.000Z

    This dataset contains aggregate death data at the state and county level for Pennsylvania residents. The data are displayed by county, date, death counts, averages, rates based on population. Pennsylvania statewide numbers are listed with Pennsylvania named as the county for the statewide totals. Do not add up the entire file (all rows) or counts will be duplicated.

  • API

    COVID-19 Aggregate Cases NO FURTHER UPDATES

    data.pa.gov | Last Updated 2024-05-08T14:25:45.000Z

    Weekly updates have finished with the June 28th update. Some information may be found here: https://covid.cdc.gov/covid-data-tracker/#maps_new-admissions-rate-state <br> This dataset contains aggregate COVID-19 case counts and rates by date of first report for all counties in Pennsylvania and for the state as a whole. Counts include both confirmed and probable cases as defined by the Council of State and Territorial Epidemiologists (CSTE). At present, a person is counted as a case only once. Note that case counts by date of report are influenced by a variety of factors, including but not limited to testing availability, test ordering patterns (such as day of week patterns), labs reporting backlogged test results, and mass screenings in nursing homes, workplaces, schools, etc. Case reports received without a patient address are assigned to the county of the ordering provider or facility based on provider zip code. Cases reported with a residential address that does not match to a known postal address per the commonwealth geocoding service are assigned to a county based on the zip code of residence. Many zip codes cross county boundaries so there is some degree of misclassification of county. All counts may change on a daily basis due to reassignment of jurisdiction, removal of duplicate case reports, correction of errors, and other daily data cleaning activities. Downloaded data represents the best information available as of the previous day. <br> Data will be updated between 11:30 am to 1:30pm each Wednesday.

  • API

    Total NJ Crash Records By County - No Private Properties

    data.nj.gov | Last Updated 2022-07-20T13:46:09.000Z

    Number of crashes that occurred in each of the 21 counties of New Jersey and the total number of crashes for the years 2001 to current. Crashes that occurred on private properties are not included.

  • API

    Total NJ Injury Crashes By County - No Private Properties

    data.nj.gov | Last Updated 2022-07-20T13:36:33.000Z

    Number of injury crashes that occurred in each of the 21 counties of New Jersey and the total number of injury crashes for the years 2001 to current. Injury crashes that occurred on private properties are not included.

  • API

    Public Transit Services and Reduced-fare Programs by County, Current, Transportation

    data.pa.gov | Last Updated 2024-05-31T08:02:51.000Z

    This dataset lists all public transit services and reduced-fare programs currently provided in each county of PA. Public transportation is available in every county in Pennsylvania, with a wide range of services including: - Fixed-route transit service in Philadelphia, Pittsburgh, 21 small urban areas, and 22 rural areas - 44 systems offering shared-ride services in all Pennsylvania counties - 13 intercity bus routes - Keystone Corridor Amtrak service, running from Harrisburg to New York by way of Philadelphia, and Pennsylvanian Amtrak service running from Pittsburgh to Philadelphia - 66 counties with rural transportation for persons with disabilities NOTE: Service providers offering two or more reduced-fare programs have duplicate records to reflect the various programs and to allow sorting by program type.

  • API

    New York State Population Data: Beginning 2003

    health.data.ny.gov | Last Updated 2024-03-07T16:13:08.000Z

    Population data file is provided as an additional reference file when interpreting vital statistics death rates. The population data is derived from the corresponding release of the NCHS annual estimates of "Bridged Race Vintage" which are consistent with the Bureau of the Census estimates from "Vintage" (released in the summer). For more information, check out: http://www.health.ny.gov/statistics/vital_statistics/. The "About" tab contains additional details concerning this dataset.

  • API

    Educational Attainment by Age Range and Gender 2009-2016 County Annual Education

    data.pa.gov | Last Updated 2022-10-17T19:34:54.000Z

    County level educational attainment data on the adult working aged population (25-64) by age range and gender. Data is sourced from the US Census Bureau’s American Community Survey (ACS) 5-year estimates allowing for increased statistical reliability of the data for less populated areas and small population subgroups. More information here - https://www.census.gov/data/developers/data-sets/acs-5year.html

  • API

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

    data.pa.gov | Last Updated 2022-02-17T20:52:23.000Z

    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. This dataset is contained within the Juvenile Court Judges' Commissions 2018 Juvenile Court Annual Report; this report provides an overview of Pennsylvania juvenile court statistics, during 2018 and preceding years, 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.

  • API

    Vital Statistics Deaths by Resident County, Region, and Race/Ethnicity: Beginning 2003

    health.data.ny.gov | Last Updated 2024-03-07T15:52:48.000Z

    This dataset contains death counts by resident county and race/ethnicity. For more information check out: http://www.health.ny.gov/statistics/vital_statistics.

  • 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.