The land area of Orange County, CA was 791 in 2016.

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 Orange County, CA

  • API

    Civilian Unemployment Rate for US and California | Last Updated 2018-11-30T18:03:51.000Z

    This dataset contains unemployment rates for the U.S.(1948 - Present) and California (1976 - Present). The unemployment rate represents the number of unemployed as a percentage of the labor force. Labor force data are restricted to people 16 years of age and older, who currently reside in 1 of the 50 states or the District of Columbia, who do not reside in institutions (e.g., penal and mental facilities, homes for the aged), and who are not on active duty in the Armed Forces. This rate is also defined as the U-3 measure of labor underutilization.

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    San Mateo County And California Crime Rates 2000-2014 | Last Updated 2016-08-31T20:40:07.000Z

    Violent and property crime rates per 100,000 population for San Mateo County and the State of California. The total crimes used to calculate the rates for San Mateo County include data from: Sheriff's Department Unincorporated, Atherton, Belmont, Brisbane, Broadmoor, Burlingame, Colma, Daly City, East Palo Alto, Foster City, Half Moon Bay, Hillsborough, Menlo Park, Millbrae, Pacifica, Redwood City, San Bruno, San Carlos, San Mateo, South San Francisco, Bay Area DPR, BART, Union Pacific Railroad, and CA Highway Patrol.

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    Local Area Unemployment Statistics (LAUS), Annual Average | Last Updated 2018-06-26T19:11:08.000Z

    This dataset contains the Local Area Unemployment Statistics (LAUS), annual averages from 1990 to 2017. The Local Area Unemployment Statistics (LAUS) program is a Federal-State cooperative effort in which monthly estimates of total employment and unemployment are prepared for approximately 7,300 areas, including counties, cities and metropolitan statistical areas. These estimates are key indicators of local economic conditions. The Bureau of Labor Statistics (BLS) of the U.S. Department of Labor is responsible for the concepts, definitions, technical procedures, validation, and publication of the estimates that State employment security agencies prepare under agreement with BLS. Estimates for the remainder of the substate labor market areas are produced through a building-block approach known as the "Handbook method." This procedure also uses data from several sources, including the CPS, the CES program, State UI systems, and the decennial census, to create estimates that are adjusted to the statewide measures of employment and unemployment. Below the labor market area level, estimates are prepared using disaggregation techniques based on inputs from the decennial census, annual population estimates, and current UI data

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    Beach Water Quality | Last Updated 2018-11-09T17:53:05.000Z

    Contains results of weekly water samples collected at beaches in Marin County, CA. The weekly samples are collected and analyzed for Total Coliform, E. coli, and Enterococcus bacteria. Advisories are posted at a beach when a recreational standard for these indicator organism is exceeded. Weekly results are published each year starting in April and continuing through October. Sample results in this dataset start with the week of May 29, 2017. If a sample result is labeled "N/A" it means that no results are available from the beach location that week.

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    Water Chemistry Data For Wells In Uintah Basin, County And Surrounding Areas | Last Updated 2015-01-05T02:42:53.000Z

    Water Chemistry Data For Wells In Uintah Basin, County And Surrounding Areas

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    Unemployment Insurance Program Monthly Claims Data for California | Last Updated 2018-09-24T21:01:08.000Z

    The monthly summary report is intended to provide the user with a quick overview of the status of the UI system at the national and state levels. This summary report contains monthly information on claims activities and on the number and amount of payments under State unemployment insurance laws. This data is used in budgetary and administrative planning, program evaluation, and reports to Congress and the public.

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    DCFS Service Areas | Last Updated 2018-07-17T15:33:51.000Z

    The Los Angeles County Department of Children and Family Services (DCFS) uses ZIP Codes to distribute its workload among its 19 regional field offices. (Visit for GIS data downloads.) For more information, please visit To report child abuse in Los Angeles County, California, contact the Child Protection Hotline 24 hours a day, 7 days a week Toll-free within California:Main phone number: (800) 540-4000.If calling from outside of California: (213) 639-4500TDD [Hearing Impaired]: (800) 272-6699.

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    Seismic Ratings and Collapse Probabilities of California Hospitals | Last Updated 2017-06-15T22:22:53.000Z

    This dataset lists the Structural Performance Category or “SPC rating” and Nonstructural Performance Category or “NPC rating” of all General Acute Care Hospitals in California, including a building’s probability of collapse in a significant earthquake is assessed using Multi-Hazard Loss Estimation Technology (HAZUS).

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    Utilization Rates for Selected Medical Procedures in California Hospitals | Last Updated 2016-12-28T22:38:08.000Z

    The dataset contains 5 utilization rates (Cesarean Delivery Rate, Cesarean Delivery Rate - Primary, Vaginal Birth After Cesarean Rate, Vaginal Birth After Cesarean Rate Uncomplicated, Laparoscopic Cholecystectomy) for procedures performed in California hospitals. They are not related to the Let's Get Healthy California indicators. This dataset does not include procedures performed in outpatient settings. Data are reported for January – September 2015 due to coding changes from ICD-9-CM to ICD-10-CM/PCS for procedures, which began 10/1/2015. Comparisons across years should be made with caution since previous years’ results are based on 12 months of data, while this analysis is based on 9 months of data. The 2015 data may differ from previous years due to the coding change.

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    Licensing and Certification District Offices, California | Last Updated 2017-06-13T16:58:35.000Z

    This data contains a list of California Licensing and Certification District Offices. The California Department of Public Health, Center for Health Care Quality, Licensing and Certification (L&C) Program licenses and/or certifies more than 30 types of healthcare facilities in California. In addition, the Program contracts with the Los Angeles County (LA) to provide federal and state survey and certification services throughout that area; LA is divided into 4 District Offices. The L&C District Office contact information is geocoded. The L&C Program is mandated to conduct various state re-licensing surveys to ensure that a provider is in compliance with all state laws and regulations by conducting on-site inspections (surveys) and investigating complaints and facility-reported events. The L&C Program is also contracted by the United States Department of Health and Human Services Centers for Medicare and Medicaid Services (CMS) to ensure that facilities accepting Medicare and Medi-Cal payments meet federal requirements. L&C is the largest program within CDPH, consisting of about 1,200 managers and staff located at headquarters in Sacramento and 14 district offices throughout the state. In addition, the Program contracts with the Los Angeles County (LA) to provide federal and state survey and certification services throughout that area; LA is divided into 4 District Offices. The L&C District Office contact information is geocoded.