The land area of Baltimore city, MD was 81 in 2018. The land area of Philadelphia County, 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 Baltimore city, MD or Philadelphia County, PA

  • API

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

    data.pa.gov | Last Updated 2024-05-28T08:02:38.000Z

    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.

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    Individuals with Medical Assistance (MA) receiving Medication-Assisted Treatment (MAT) CY 2015-Current Annual County Human Services

    data.pa.gov | Last Updated 2024-03-22T12:18:10.000Z

    This dataset contains the count of individuals with Medical Assistance coverage (MA) receiving any form of MAT (Medication-Assisted treatment) by case county. The counts cover calendar years 2015 - 2018. If a count field is null, then the count is suppressed due to low numbers. If the county is null, then the county is unknown.

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    MUNICIPAL_BOUNDARY

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

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    Safe Schools Drug and Alcohol Use SY 2012 - Current County Education

    data.pa.gov | Last Updated 2022-10-17T19:38:08.000Z

    This dataset contains summary information by county on Incidents involving Drug and Alcohol reported use in Schools. School categories are Public School, Charter, Intermediate, Vo-Tech, Non-Public and other. The data count fields are suppressed when less than 11. The data and more information is also published and searchable online on the https://www.education.pa.gov/Schools/safeschools/Pages/default.aspx website under School Safety. Here are the infraction codes and definitions that are utilized within this report as found within appendix Z of the PIMS manual: http://www.education.pa.gov/Documents/Teachers-Administrators/PIMS/PIMS%20Manuals/2017-2018%20PIMS%20Manual%20Vol%202.pdf

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    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

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    Floodplain Study

    data.montgomerycountymd.gov | Last Updated 2024-05-01T09:45:20.000Z

    The purpose of a floodplain study is to establish the 100-year floodplain limits within or near a development in order to preserve the natural resources within the 100-year floodplain, to protect property and persons, and to apply a unified, comprehensive approach to floodplain management. Update Frequency - Daily

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    Newly Identified Confirmed Chronic Hepatitis C Age 15-34 Year 2007-2016 Health

    data.pa.gov | Last Updated 2022-10-17T20:05:23.000Z

    This data set provides an estimate of the number of people aged 15-34 years with newly identified confirmed chronic (or past/present) hepatitis C infection, by county and by year. The dataset is limited to persons aged 15 to 34 because hepatitis C infection is usually asymptomatic for decades after infection occurs. Cases are usually identified because they have finally become symptomatic, or they were screened. Until very recently, screening for hepatitis C was not routinely performed. This makes it very challenging to identify persons with recent infection. Limiting the age of newly identified patients to 15-34 years makes it more likely that the cases included in the dashboard were infected fairly recently. It is not meant to imply that the opioid crisis’ effect on hepatitis C transmission is limited to younger people. The process by which case counts are determined is as follows: Case reports, which include lab test results and address data, are sent to Pennsylvania’s electronic disease surveillance system (PA-NEDSS). Confirmation status is determined by public health investigators who evaluate test results against the CDC case definition for hepatitis C in place for the year in which the patient was first reported (https://wwwn.cdc.gov/nndss/conditions/hepatitis-c-chronic/). Reportable disease data, including hepatitis C, is extracted from PA-NEDSS, combined with similar data sent by the Philadelphia Department of Public Health (PDPH, which uses a separate surveillance system), and sent to CDC. Case data sent to CDC (from PA-NEDSS and PDPH combined) are used to create a statewide reportable disease dataset. This statewide file was used to generate the dashboard dataset. Note that the term that CDC has used to denote persons with hepatitis C infection that is not known to be acute has switched back and forth between “Hepatitis C, past or present” and “Hepatitis C, chronic” over the past several years. The CDC case definition for hepatitis C, chronic (or past or present) changed in 2005, 2010, 2011, 2012, and 2016. Persons reported as confirmed in one year may not have been considered confirmed in another year. For example, patients with a positive radioimmunoblot assay (RIBA) or elevated enzyme immunoassay (EIA) signal-to-cutoff level were counted as confirmed in 2012, but not counted as confirmed in 2016. Data sent to CDC’s National Notifiable Disease Surveillance System use a measure for aggregating cases by year called the MMWR year. The MMWR, or the Morbidity and Mortality Weekly Report, is an official publication by CDC and the means by which CDC has historically presented aggregated case count data. Since data in the MMWR are presented by week, the MMWR year always starts on the Sunday closest to Jan 1 and ends on the Saturday closest to Dec 31. The most recent year for which case counts are finalized is 2016. Annual case counts are finalized in May of the following year. The patient zip code, as submitted to PA-NEDSS, is used to determine the case’s county of residence at the time of initial case report. In some instances, the patient zip code is unavailable. In those circumstances, the zip code of the provider that ordered the lab test is used as a proxy for patient zip code. Users should note that the state prison system routinely screens all incoming inmates for hepatitis C. If these inmates are determined to be confirmed cases, they are assigned to the county in which they were incarcerated when their confirmed hepatitis C was first identified. Hepatitis C case counts in counties with state prisons should be interpreted cautiously in light of this enhanced screening activity.

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    Family Support Programs Current Quarterly County Human Services

    data.pa.gov | Last Updated 2024-02-26T16:09:34.000Z

    This list contains enrollment and capacity information for Family Support programs in Pennsylvania as of the last day of each quarter. This report will be updated on a quarterly basis. DISCLAIMER: OCDEL is not representing that this information is current or accurate beyond the day it was posted. OCDEL shall not be held liable for any improper or incorrect use of the information described and/or contained herein and assumes no responsibility for anyone's use of the information.

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    Floodplain District Permit

    data.montgomerycountymd.gov | Last Updated 2024-05-20T09:53:36.000Z

    The purpose of a Floodplain District Permit (FPDP) is to control floodplain development in order to protect persons and property from danger and destruction and to preserve environmental quality. Floodplain district: Any area specified in Executive regulations that is subject to inundation in a 100-year storm. This includes any waterway with a drainage area of 30 acres or larger. Floodplain district permit: A permit issued by the Department under this article authorizing land-disturbing and construction activities. Floodplain district permit plan: A set of representational drawings or other documents submitted by an applicant to obtain a floodplain district permit that contains the information and specifications the Department requires minimizing the safety hazards of or the negative hydraulic and environmental impacts associated with development in or near a floodplain." Update Frequency : Daily

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    Prevalence Of Autism Spectrum Disorder Per 1000 Children 8 Years Old All States

    opendata.utah.gov | Last Updated 2019-04-19T02:22:46.000Z

    Prevalence Of Autism Spectrum Disorder Per 1000 Children 8 Years Old All States