The land area of Jefferson County, CO was 764 in 2017.

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 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.

Geographic and Area Datasets Involving Jefferson County, CO

  • API

    Septic Systems in Boulder County Colorado | Last Updated 2019-06-14T19:42:40.000Z

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

  • API

    Vacancies by Age of Building for Colorado 2016 | Last Updated 2018-06-12T23:47:33.000Z

    Average rents and vacancies distributed by age of building structure for regions across Colorado dating back to 2006 as defined by the Colorado Department of Local Affairs Housing Division (DOLA).

  • API

    Salaries: ESD: Jefferson County: FY 2013 | Last Updated 2014-09-15T21:37:57.000Z

    Summary of salaries for Jefferson County ESD for Fiscal Year 2013.

  • API

    Rents by Type of Apartment in Colorado 2016 | Last Updated 2018-06-12T23:59:22.000Z

    Average rents and vacancies distributed by type of apartment for regions across Colorado dating back to 2006 as defined by the Colorado Department of Local Affairs Housing Division (DOLA).

  • API

    Taxes by County and Industry in Colorado | Last Updated 2019-12-03T16:29:40.000Z

    This dataset is now Static updates will cease for the foreseeable future. Sales Tax information is summarized monthly at the county level by industry. Net Tax for the monthly filing period are summarized by county and industry in this report including tax totals. Contains fields like agriculture, clothing, food & beverage, etc. This data set is provided by the Department of Revenue (DOR).

  • API

    Unemployment Estimates in Colorado | Last Updated 2020-01-08T19:45:19.000Z

    Labor force and unemployment estimates by month and county and Metropolitan Statistical Area, from Colorado Department of Labor and Employment (CDLE), since 1990

  • API

    Personal Income in Colorado | Last Updated 2020-01-08T19:41:38.000Z

    Income (per capita or total) for each county by year with rank and population. From Colorado Department of Labor and Employment (CDLE), since 1969.

  • API

    DWR Active Substitute Water Supply Plans | Last Updated 2020-01-20T07:02:54.000Z

    Substitute water supply plans provide water users a mechanism to operate a plan for augmentation or change of water right with temporary approval from the State Engineer as allowed by § 37-92-308, C.R.S., or § 37-90-137(11), C.R.S.

  • API

    CWCB Instream Flow and Natural Lake Level Data | Last Updated 2020-01-20T07:17:19.000Z

    Instream Flow and Natural Lake Level water rights of the Colorado Water Conservation Board

  • API

    Current Season Spring Trout Stocking | Last Updated 2019-06-10T18:04:21.000Z

    DEC stocks more than 2.3 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.