The land area of Darke County, OH was 598 in 2013.

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 Darke County, OH

  • API

    Find A Missouri Utility

    data.mo.gov | Last Updated 2019-02-15T19:50:21.000Z

  • API

    WAOFM - Census - Population and Housing, 2000 and 2010

    data.wa.gov | Last Updated 2021-09-01T17:20:31.000Z

    Population and housing information extracted from decennial census Public Law 94-171 redistricting summary files for Washington state for years 2000 and 2010.

  • API

    Average Water Network Capacity by Hexagon Area

    data.edmonton.ca | Last Updated 2023-09-19T21:55:50.000Z

    This dataset provides the average water network capacity (2023) within 200m x 200m hexagons, in Litres/second, for the City of Edmonton. The following colours describe the capacity of the city block area water system under computer-simulated conditions using EPCOR-owned hydrants: Red: 0-50 L/s Yellow: 50-100 L/s Light Green: 100-150 L/s Dark Green: 150-200 L/s Teal: 200-250 L/s Blue: 250-300 L/s Purple: 300 L/s and up No Data: No EPCOR-owned hydrants in Area Important Considerations: * EPCOR provides this data for information purposes only. EPCOR makes no guarantee, representation or warranty, express or implied, including that the data is true, accurate, complete, fit for a specific purpose or non-infringing, and no responsibility of any kind is accepted by EPCOR or EPCOR representatives for the completeness or accuracy of the data. EPCOR and its affiliates and their respective officers, directors, employees and other representatives shall not be liable to any person or entity as a result of the use or other handling of the data. * The hexagon grid utilized to present the average water network capacity data has been updated by EPCOR. As such, this version of the dataset should not be directly compared to previous versions of this dataset. * The average water network capacity is intended to be understood in a relative manner: e.g. a blue area is anticipated to provide higher flows on average than a green area. * Any city block area that indicates 0-50 L/s water network capacity has been evaluated by Edmonton Fire Rescue Services (EFRS). EFRS does not associate any significant risk with these areas and can adapt a response to a fire event in these areas given the small geographical area and buildings affected. * The results presented in this data were determined using computer modelling software that represented the distribution and transmission water network current in EWS's digital records as of February 16, 2023. Modifications to the water system after this date may change the water network capacity at any given time or place. * The results presented in this data represent the overall average water network capacity in an area during computer-simulated conditions at EPCOR-owned hydrants. Other factors may change the water network capacity at any given time or place. *The results presented in this data are not representative of lot-level available fire flow as outlined in the Volume 4 Design and Construction Standards. * The average water network capacity ranges are only indicative of average system capacity and not indicative of EPCOR-owned hydrant spacing. A development may still require infrastructure upgrades to meet minimum hydrant spacing requirements. * This map is not a substitute for directed engineering inquiries regarding infrastructure improvements to support development. Please contact EPCOR Water at wtrdc@epcor.com to determine fire protection requirements for development.

  • API

    Surface Water Quality Assessments

    opendata.maryland.gov | Last Updated 2018-08-13T20:15:11.000Z

    This is the 2014 Integrated Report. EPA approved this submission in accordance with Sections 303(d), 305(b), and 314(l) of the Clean Water Act, on October 16, 2015. The Integrated Report (IR) combines two water quality reports required under sections 305(b) and 303(d) of the federal Clean Water Act. Section 305(b) requires states, territories and authorized tribes to perform annual water quality assessments to determine the status of jurisdictional waters. Section 303(d) requires states, territories and authorized tribes to identify waters assessed as not meeting water quality standards(see Code of Maryland Regulations 26.08.02). Waters that do not meet standards may require a Total Maximum Daily Load to determine the maximum amount of an impairing substance or pollutant that a particular water body can assimilate and still meet water quality criteria. Historically, the 303(d) List and the 305(b) report were submitted to the Environmental Protection Agency (EPA) as separate documents but more recent guidance has called for combining these two reports into a single biennial publication. More information is available at http://www.mde.state.md.us/PROGRAMS/WATER/TMDL/INTEGRATED303DREPORTS/Pages/Programs/WaterPrograms/TMDL/Maryland%20303%20dlist/index.aspx A searchable version of this data is available at http://www.mde.state.md.us/programs/Water/TMDL/Integrated303dReports/Pages/303d.aspx

  • API

    Beach and Creek Monitoring Results

    datahub.smcgov.org | Last Updated 2023-07-01T01:00:14.000Z

    Water samples from natural recreational waters in San Mateo County are sampled each week for concentrations of indicator bacteria including E. Coli, Enterococcus, and Coliform bacteria. If concentrations of indicator bacteria exceed State or County standards, the area is posted to warn users that they may become ill if they engage in water contact activities in the posted area. More information about results and testing can be found on the San Mateo County Health System site: http://smchealth.org/environ/beaches This dataset contains readings from January, 2012 to the present and is updated weekly.

  • 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

    Septic Systems in Boulder County Colorado

    data.colorado.gov | Last Updated 2024-09-30T10:58:49.000Z

    Septic system data including type, status, location, etc for dwellings within Boulder County, CO provided by Boulder County.

  • 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

    DWR Dam Safety Non-Jurisdictional Dam

    data.colorado.gov | Last Updated 2024-09-30T06:02:19.000Z

    A Non-Jurisdictional Dam is a dam creating a reservoir with a capacity of 100 acre-feet or less and a surface area of 20 acres or less and with a height measured as defined in Rules 4.2.5.1 and 4.2.19 of 10 feet or less. Non-jurisdictional size dams are regulated and subject to the authority of the State Engineer consistent with sections 37- 87-102 and 37-87-105 C.R.S.

  • API

    Water Quality

    data.kingcounty.gov | Last Updated 2024-09-28T00:14:00.000Z

    Prior to downloading data, please download the <b> <a href="https://data.kingcounty.gov/api/views/vwmt-pvjw/files/74efd236-ffa8-4dee-aac1-0188e110dd1c?download=true&filename=DataReadMeFile_WQ.docx">README</a></b> file. This dataset contains water quality samples collected from Puget Sound, lakes, and streams in the region which can be filtered by "Site Type" and "Area". To see where water quality samples are collected, see the <b><a href="https://data.kingcounty.gov/dataset/WLRD-Sites/wbhs-bbzf">WLRD Water Quality Collection Sites</a></b> dataset.