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The population density of Nassau County, NY was 4,765 in 2018. The population density of Westchester County, NY was 2,250 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 Nassau County, NY or Westchester County, NY

  • API

    New York State ZIP Codes-County FIPS Cross-Reference

    data.ny.gov | Last Updated 2019-06-10T18:03:31.000Z

    A listing of NYS counties with accompanying Federal Information Processing System (FIPS) and US Postal Service ZIP codes sourced from the NYS GIS Clearinghouse.

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    Total Income And Tax Liability By Place Of Residence: Beginning Tax Year 1999

    data.ny.gov | Last Updated 2021-12-31T17:19:29.000Z

    The Department of Taxation and Finance annually produces a data (study) file and provides a report of statistical information on New York State personal income tax returns that were timely filed. Timely filing means that the tax return was delivered to the Department on or before the due date of the tax return. The data are from full-year resident, full-year nonresident, and part-year resident returns. This dataset defines individuals filing a resident tax return as full-year residents and individuals filing a nonresident tax return are defined as either a full- year nonresident or a part-year resident.Data presented in this dataset provide the major income tax structure components by size of income. The components include income, deductions, dependent exemptions, and tax liability. The data also provides this information by size of income and by the filer’s permanent place of residence (county, state or country). For a more detailed explanation on the determination of residency and components of income see the attachment: NYSTF_PlaceOfResidence_Introduction.Researchers agree to: Use the data for statistical reporting an analysis only. The author will include a disclaimer that states any analyses, interpretations or conclusions were reached by the author and not the New York State Department of Taxation and Finance.

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    Current Season Spring Trout Stocking

    data.ny.gov | Last Updated 2024-03-18T19:40:19.000Z

    DEC stocks close to 2 million catchable-size brook, brown, and rainbow trout in over 309 lakes and ponds and roughly 2,900 miles of streams across the state each spring. This dataset represents the planned stocking numbers, species and time of spring for those waters for the current fishing season. The current stocking data is updated annually in mid-March.

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    Unemployment Insurance Beneficiaries and Benefit Amounts Paid: Beginning 2001

    data.ny.gov | Last Updated 2024-05-16T13:01:22.000Z

    Dataset contains monthly counts, from 2001 to present, of individuals receiving regular unemployment insurance benefits, as well as the total amount of benefits received from New York State. Data are provided for the state, 10 labor market regions, and counties. State counts can include everyone who receives benefits through New York State (including out-of-state residents) or only state residents who do so (excluding out-of-state residents). Regular unemployment insurance includes: Unemployment Insurance (UI) Compensation, Compensation for Federal Employees (UCFE), Unemployment Compensation for Ex-Service Members (UCX), Shared Work (SW) and Self Employment Assistance Program (SEAP). It excludes federal extensions and 599.2 training.

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    Texting Zone Locations

    data.ny.gov | Last Updated 2022-02-15T22:44:21.000Z

    Special "Texting Zones" locations along the New York State Thruway and State Highways that give motorists a pull-off area to park and use their mobile devices. Existing Park-n-Ride facilities, rest stops, parking areas and travel plazas along the Thruway and State Highways will have a dual-function as a texting zone. A total of 90 Texting Zones are located along major highways across the state. New York State Department of Transportation (NYSDOT) in coordination with the Thruway Authority, have collaborated to provide Texting Zones location information and signage to inform drivers.

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    Taxable Sales And Purchases Quarterly Data: Beginning Sales Tax Year 2013-2014

    data.ny.gov | Last Updated 2024-04-23T15:03:45.000Z

    These statistics come from more than three million data items reported on about 250,000 sales tax returns filed quarterly and on about 300,000 returns filed annually. The dataset categorizes quarterly sales and purchases data by industry group using the North American Industry Classification System. The status of data will change as preliminary data becomes final.

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    Breeding Bird Atlases

    data.ny.gov | Last Updated 2019-06-10T18:02:38.000Z

    New York State’s first and second breeding bird atlases documented the distribution of the state’s avifauna during two distinct time periods: 1980-1985 and 2000-2005. Over 4,300 individuals submitted data during the first atlas yielding a final, cumulative dataset of over 361,583 records. Over 1,200 individuals submitted data for the second atlas project, resulting in a final database of 519,570 records.

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    Long-term Industry Projections

    data.ny.gov | Last Updated 2023-06-30T17:36:30.000Z

    Long-term Industry Projections for a 10 year time horizon are provided for the state and 10 labor market regions to provide individuals and organizations with an industry outlook.

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    Index, Violent, Property, and Firearm Rates By County: Beginning 1990

    data.ny.gov | Last Updated 2023-09-05T12:26:49.000Z

    The Division of Criminal Justice Services (DCJS) collects crime reports from more than 500 New York State police and sheriffs’ departments. DCJS compiles these reports as New York’s official crime statistics and submits them to the FBI under the National Uniform Crime Reporting (UCR) Program. UCR uses standard offense definitions to count crime in localities across America regardless of variations in crime laws from state to state. In New York State, law enforcement agencies use the UCR system to report their monthly crime totals to DCJS. The UCR reporting system collects information on seven crimes classified as Index offenses which are most commonly used to gauge overall crime volume. These include the violent crimes of murder/non-negligent manslaughter, forcible rape, robbery, and aggravated assault; and the property crimes of burglary, larceny, and motor vehicle theft. Firearm counts are derived from taking the number of violent crimes which involve a firearm. Population data are provided every year by the FBI, based on US Census information. Police agencies may experience reporting problems that preclude accurate or complete reporting. The counts represent only crimes reported to the police but not total crimes that occurred. DCJS posts preliminary data in the spring and final data in the fall.

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    Short-term Industry Projections

    data.ny.gov | Last Updated 2024-03-06T19:36:11.000Z

    Short-term Industry Projections for a 2 year time horizon are provided for the state and 10 labor market regions to provide individuals and organizations with an industry outlook.