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The land area of Chicago, IL was 228 in 2018. The land area of Philadelphia, PA was 134 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.

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 Area Datasets Involving Chicago, IL or Philadelphia, PA

  • 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

    Safe Drinking Water Facilities Information System for Pennsylvania 2018 - Current Environmental Protection

    data.pa.gov | Last Updated 2022-10-24T13:20:24.000Z

    Safe Drinking Water Information System (SDWIS) is EPA’s national database that manages and collects public water system information from states, including reports of drinking water standard violations, reporting and monitoring violations, and other basic information. The data derived in the State of Pennsylvania is published and searchable online on the www.pa.gov website. This set contains the Water System Facility data, which will be updated annually for the prior calendar year in the first Quarter of the following year.

  • API

    CPS Schools 2013-2014 Academic Year

    data.cityofchicago.org | Last Updated 2013-11-26T20:27:57.000Z

    List of CPS schools for the 2013-2014 academic year. This dataset includes various identifiers used to identify school districts, including names; local, state, and federal IDs; and geographic descriptions on the location of each school.

  • 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

    Beach Lab Data

    data.cityofchicago.org | Last Updated 2024-05-30T17:01:52.000Z

    The Chicago Park District collects and analyzes water samples from beaches along Chicago’s Lake Michigan lakefront. The Chicago Park District partners with the University of Illinois at Chicago Department of Public Health Laboratory to analyze water samples using a new DNA testing method called Rapid Testing Method (qPCR analysis) which tests for Enterococci in order to monitor swimming safety. The rapid testing method (qPCR analysis) is a new method that measures levels of pathogenic DNA in beach water. Unlike the culture based test that requires up to 24 hours of processing, the new rapid testing method requires a 4-5 hours for results. The Chicago Park District can use results of the rapid test to notify the public when levels exceed UPEPA recommended levels, which is 1000* CCE. When DNA bacteria levels exceed 1000 CCE, a yellow swim advisory flag is implemented. For more information please refer to the USEPA Recreational Water Quality Criteria (http://water.epa.gov/scitech/swguidance/standards/criteria/health/recreation). Historically, the Chicago Park District used the culture based analysis method and statistical prediction models to monitor beach water quality. The culture based method tests for Escherichia coli (E. coli) bacteria which is an indicator species for the presence of disease-causing bacteria, viruses, and protozoans that may pose health risks to the public. This method requires 18-24 hours of processing to receive results. The Chicago Park District would use results of the culture based method to notify the public when levels exceed UPEPA recommended levels, which is 235* CFU. When bacteria levels exceed 235 CFU, a yellow swim advisory flag was implemented. This standard is still used at most beaches throughout the Great Lakes region. For more information please refer to the USEPA Recreational Water Quality Criteria. The statistical prediction model forecasted real-time Escherichia coli (E. coli) bacteria levels present in the water. The Chicago Park District (CPD) in partnership with the US Geological Survey, developed statistical prediction models by using weather data pulled from CPD buoys (https://data.cityofchicago.org/d/qmqz-2xku) and weather stations (https://data.cityofchicago.org/d/k7hf-8y75). The Chicago Park District would use results of the predictive model to notify the public when bacteria levels would exceed 235 CFU. When bacteria levels exceed 235 CFU, a yellow swim advisory flag was implemented. * The unit of measurement for Escherichia coli is Colony Forming Units (CFU) per 100 milliliters of water. (Culture Based Method / Statistical Prediction Model) *The unit of measuring DNA is Enterococci Calibrator Cell Equivalents (CCE) per 100 milliliters of water. (Rapid Testing Analysis)

  • API

    Park and Ride Locations Current Transportation

    data.pa.gov | Last Updated 2024-05-29T05:04:35.000Z

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

  • API

    County to CBSA Mapping for Large Metros

    data.bayareametro.gov | Last Updated 2022-08-26T07:12:04.000Z

    Data contains counties in the following list of CBSAS (per OMB Mar 2020 definition): Bay Area CBSAs: San Francisco-Oakland-Berkeley, CA San Jose-Sunnyvale-Santa Clara, CA Napa, CA Santa Rosa-Petaluma, CA Other CBSAs: Los Angeles-Long Beach-Anaheim, CA Washington-Arlington-Alexandria, DC-VA-MD-WV Denver-Aurora-Lakewood, CO Detroit-Warren-Dearborn, MI Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Boston-Cambridge-Newton, MA-NH New York-Newark-Jersey City, NY-NJ-PA Phoenix-Mesa-Chandler, AZ Houston-The Woodlands-Sugar Land, TX Seattle-Tacoma-Bellevue, WA Atlanta-Sandy Springs-Alpharetta, GA Chicago-Naperville-Elgin, IL-IN-WI Austin-Round Rock-Georgetown, TX Dallas-Fort Worth-Arlington, TX Miami-Fort Lauderdale-Pompano Beach, FL

  • API

    Naloxone First Responder Program 2017 - Current County Commission on Crime and Delinquency

    data.pa.gov | Last Updated 2022-10-17T20:16:51.000Z

    The Naloxone for First Responders dataset is based on data obtained from individual Centralize Coordinating Entities (CCEs) who have provided data to PCCD on a quarterly basis. CCE's provide naloxone to eligible first responders in their local community.<br> The data includes the number of kits of naloxone that were provided by CCEs to first responders in each county, the types of first responders who received those kits, the number of doses used by first responders in that county, and the number of overdose reversals in that county.

  • API

    Refrigerated Truck Rates and Availability

    internal.agtransport.usda.gov | Last Updated 2024-05-30T17:54:39.000Z

    Data from AMS Market News Specialty Crops Program, including weekly refrigerated truck rates and availability by origin, destination, and commodity. The Transportation Services Division assigns a broader region to the origins in order to join to refrigerated truck rate and availability data.

  • API

    National Immunization Survey Adult COVID Module (NIS-ACM): COVIDVaxViews| Data | Centers for Disease Control and Prevention (cdc.gov)-Archived

    data.cdc.gov | Last Updated 2024-01-24T15:02:36.000Z

    National Immunization Survey Adult COVID Module (NIS-ACM): CDC is providing information on COVID-19 vaccine confidence to supplement vaccine administration data. These data represent trends in vaccination status and intent, and other behavioral indicators, by demographics and other characteristics.