Geospatial data about Denver, Colorado County Boundary Lines. Export to CAD, GIS, PDF, CSV and access via API.

A polygonal representation of the Assessment Map Index for the City and County of Denver.

This web map created by the Colorado Governor's Office of Information Technology GIS team, serves as a basemap specific to the state of Colorado. The basemap includes general layers such as counties, municipalities, roads, waterbodies, state parks, national forests, national wilderness areas, and trails.Layers:Layer descriptions and sources can be found below. Layers have been modified to only represent features within Colorado and are not up to date. Layers last updated February 23, 2023. Colorado State Extent: Description: “This layer provides generalized boundaries for the 50 States and the District of Columbia.” Notes: This layer was filtered to only include the State of ColoradoSource: Esri Living Atlas USA States Generalized Boundaries Feature LayerState Wildlife Areas:Description: “This data was created by the CPW GIS Unit. Property boundaries are created by dissolving CDOWParcels by the property name, and property type and appending State Park boundaries designated as having public access. All parcel data correspond to legal transactions made by the CPW Real Estate Unit. The boundaries of the CDOW Parcels were digitized using metes and bounds, BLM's GCDB dataset, the PLSS dataset (where the GCDB dataset was unavailable) and using existing digital data on the boundaries.” Notes: The state wildlife areas layer in this basemap is filtered from the CPW Managed Properties (public access only) layer from this feature layer hosted in ArcGIS Online Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerMunicipal Boundaries:Description: "Boundaries data from the State Demography Office of Colorado Municipalities provided by the Department of Local Affairs (DOLA)"Source: Colorado Information Marketplace Municipal Boundaries in ColoradoCounties:Description: “This layer presents the USA 2020 Census County (or County Equivalent) boundaries of the United States in the 50 states and the District of Columbia. It is updated annually as County (or County Equivalent) boundaries change. The geography is sources from US Census Bureau 2020 TIGER FGDB (National Sub-State) and edited using TIGER Hydrology to add a detailed coastline for cartographic purposes. Geography last updated May 2022.” Notes: This layer was filtered to only include counties in the State of ColoradoSource: Esri USA Census Counties Feature LayerInterstates:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: Interstates are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointU.S. Highways:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: U.S. Highways are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointState Highways:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: State Highways are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointMajor Roads:Description: Authoritative data from the Colorado Department of Transportation representing major roads Source: Colorado Department of Transportation Major Roads REST EndpointLocal Roads:Description: Authoritative data from the Colorado Department of Transportation representing local roads Source: Colorado Department of Transportation Local Roads REST EndpointRail Lines:Description: Authoritative data from the Colorado Department of Transportation representing rail lines Source: Colorado Department of Transportation Rail Lines REST EndpointCOTREX Trails:Description: “The Colorado Trail System, now titled the Colorado Trail Explorer (COTREX), endeavors to map every trail in the state of Colorado. Currently their are nearly 40,000 miles of trails mapped. Trails come from a variety of sources (USFS, BLM, local parks & recreation departments, local governments). Responsibility for accuracy of the data rests with the source.These data were last updated on 2/5/2019” Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerNHD Waterbodies:Description: “The National Hydrography Dataset Plus (NHDplus) maps the lakes, ponds, streams, rivers and other surface waters of the United States. Created by the US EPA Office of Water and the US Geological Survey, the NHDPlus provides mean annual and monthly flow estimates for rivers and streams. Additional attributes provide connections between features facilitating complicated analyses.”Notes: This layer was filtered to only include waterbodies in the State of ColoradoSource: National Hydrography Dataset Plus Version 2.1 Feature LayerNHD Flowlines:Description: “The National Hydrography Dataset Plus (NHDplus) maps the lakes, ponds, streams, rivers and other surface waters of the United States. Created by the US EPA Office of Water and the US Geological Survey, the NHDPlus provides mean annual and monthly flow estimates for rivers and streams. Additional attributes provide connections between features facilitating complicated analyses.”Notes: This layer was filtered to only include flowline features in the State of ColoradoSource: National Hydrography Dataset Plus Version 2.1 Feature LayerState Parks:Description: “This data was created by the CPW GIS Unit. Property boundaries are created by dissolving CDOWParcels by the property name, and property type and appending State Park boundaries designated as having public access. All parcel data correspond to legal transactions made by the CPW Real Estate Unit. The boundaries of the CDOW Parcels were digitized using metes and bounds, BLM's GCDB dataset, the PLSS dataset (where the GCDB dataset was unavailable) and using existing digital data on the boundaries.” Notes: The state parks layer in this basemap is filtered from the CPW Managed Properties (public access only) layer from this feature layer Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerDenver Parks:Description: "This dataset should be used as a reference to locate parks, golf courses, and recreation centers managed by the Department of Parks and Recreation in the City and County of Denver. Data is based on parcel ownership and does not include other areas maintained by the department such as medians and parkways. The data should be used for planning and design purposes and cartographic purposes only."Source: City and County of Denver Parks REST EndpointNational Wilderness Areas:Description: “A parcel of Forest Service land congressionally designated as wilderness such as National Wilderness Area.”Notes: This layer was filtered to only include National Wilderness Areas in the State of ColoradoSource: United States Department of Agriculture National Wilderness Areas REST EndpointNational Forests: Description: “A depiction of the boundaries encompassing the National Forest System (NFS) lands within the original proclaimed National Forests, along with subsequent Executive Orders, Proclamations, Public Laws, Public Land Orders, Secretary of Agriculture Orders, and Secretary of Interior Orders creating modifications thereto, along with lands added to the NFS which have taken on the status of 'reserved from the public domain' under the General Exchange Act. The following area types are included: National Forest, Experimental Area, Experimental Forest, Experimental Range, Land Utilization Project, National Grassland, Purchase Unit, and Special Management Area.”Notes: This layer was filtered to only include National Forests in the State of ColoradoSource: United States Department of Agriculture Original Proclaimed National Forests REST Endpoint

City limits of the City of Aurora, Colorado. The City of Aurora, Colorado (at 164.8 square miles) sits in three different counties: Adams County, Arapahoe County, and Douglas County and lies just east of the City and County of Denver. The city's population is estimated at over 400,000 and is currently the 50th largest city in the U.S.A. The city is annexing land in enclaves and to the east of the city, please check back frequently for the latest data.

RTD's publicly available GIS data including service area and director districts boundaries, available for download.The following is an updated boundary map of the district area as described in Colorado Revised Statute Title 32 Special Districts, Special Statutory Districts, Article 9 Regional transportation District Act current through the First Regular Session of the Sixty-Fifth General Assembly (2005). This description is meant to clarify and simplify the current statutory boundary description and does not constitute an annexation. Portions of the original District boundary with ambiguous or poorly described boundary lines have been drawn based on the location that has been historically used by the District as per House Bill 07-1295. Research of county records for municipal annexations that affect the District boundary has been completed as of June 3, 2022.

The U.S. Census Bureau's year 2010 census block boundaries and data for the City and County of Denver. The original census block boundaries have been adjusted to various Denver GIS data layers to increase the spatial accuracy of this data. Although every effort was made to ensure the accurate rectification of the data, due to geographic problems inherent in the original 2010 census block data, errors may exist. This data-set includes the housing and population data from redistricting file P.L. 94-171 of the 2010 census. The data-set does not contain data for any enclaves administered by other jurisdictions that are located within the City and County of Denver's boundary.

This layer is a subset of the zoning boundaries for the City and County of Denver, Colorado to reflect the zone districts in the ‘new code’ that permit general industrial food related activity as a primary use. ‘General Manufacturing, Fabrication, and Assembly’ is a subset of the ‘Manufacturing and Production’ use category (as defined in Section 11.12.5.3). Manufacturing and Production includes manufacturing and production firms involved in the manufacturing, processing, fabrication, packaging, or assembly of goods. Natural, human-made, raw, secondary, or partially completed materials may be used. Products may be finished or semi-finished and are generally made for the wholesale market, for transfer to other plants, or to order for firms or consumers. Goods are generally not displayed or sold on site, but if so, they are a subordinate part of sales. Relatively few customers come to the manufacturing site. More specifically, general manufacturing, fabrication, and assembly includes the following type establishments (Section 11.12.5.3.B.2): a manufacturing establishment primarily engaged in the fabrication or assembly of products from prestructured materials or components; or a manufacturing establishment whose operations include storage of materials; processing, fabrication, or assembly of products; and loading and unloading of new materials and finished products, and does not produce or utilize in large quantities as an integral part of the manufacturing process, toxic, hazardous, or explosive materials. Because of the nature of its operations and products, little or no noise, odor, vibration, glare, and/or air and water pollution is produced, and, therefore, there is minimal impact on surrounding properties. This definition includes all uses or products for Food and kindred products, except those noted as heavy manufacturing. The zoning boundaries data layer is governed by ordinance and is only changed accordingly. Please note: this layer applies to the ‘new code’ only. Zones carried over from the 1956 zoning code, as well as 'DIA', 'OS-A', 'PUD', 'PUD-G' zones, need to be reviewed individually.

This map data layer represents the building inspection boundaries for construction inspections for the City and County of Denver, Colorado. The building inspection boundaries data layer is changed only when a inspection boundary and/or inspector assigned to a particular district has changed.

Boundaries as defined by ordinance for City and County of Denver Local Maintenance Districts. A Local Maintenance District (LMD) is formed when a group of neighbors, especially businesses, wish to upgrade the streetscape with special features like special pedestrian lights, benches, flowers, and other such amenities. Properties benefitting by the district pay special assessments to maintain these items. This map shows the boundaries that are defined by a legal description in the ordinance that creates each LMD. It is used by Development Review staff to advise developers about the existence of the LMD and the probability that they will be required to contribute to the annual assessment.NOTE: BENEFITED PROPERTIES, ALSO DEFINED BY ORDINANCE, ARE NOT MAPPED IN THIS LAYER!

This layer is a subset of the zoning boundaries for the City and County of Denver, Colorado to reflect the zone districts in the ‘new code’ that permit plant husbandry as a primary use. ‘Plant Husbandry’ is defined as an agricultural use, other than a plant nursery, in which plants are cultivated or grown for the sale of such plants or their products, or for their use in any other business, research, or commerce; excluding, however, forestry and logging uses. Additional information on plant husbandry can be found in Section 11.12.6 in the official zoning code. The zoning boundaries data layer is governed by ordinance and is only changed accordingly. Please note: this layer applies to the ‘new code’ only. Zones carried over from the 1956 zoning code, as well as 'DIA', 'OS-A', 'PUD', 'PUD-G' zones, need to be reviewed individually.

This metadata describes this dataset which was formed by combining DRCOG’s Planimetrics 2014 Centerline Sidewalks data with the City and County of Denver’s inventory of sidewalks and landscape buffers from past curb and gutter inventories.DRCOG’s Planimetrics 2014 Centerline Sidewalks Data includes stereocompiled paved sidewalk and paved trail centerlines feature of DRCOG’s Denver Region Urbanized Project Area. The data was compiled from the Denver Regional Aerial Photography Project (DRAPP) 2016 Aerial Imagery Acquisition and Production. This 1"=100' scale imagery is comprised of 4-band RGBIR color orthoimagery with a GSD (Ground Sample Distance) of 0.5'. Imagery was collected with the Leica ADS40 and ADS80 digital sensors and processed with Leica XPro software. Imagery is projected in State Plane Coordinate System, Colorado central zone using the Lambert Conformal Conic map projection parameters. Horizontal and vertical datums are NAD83(11) and NAVD88(GEOID12A) respectively.The City and County of Denver’s curb and gutter inventory has been performed over multiple years and has collected information on sidewalk and landscape buffers where possible. The City also used a manual QA/QC process to verify sidewalk and landscape buffer widths on arterial streets. Collector and local street data was added using a script that converted DRCOG’s Planimetrics data to segment-level attribute data.

The snow routes are linear-referenced (i.e., m-enabled. This means that each feature has a measure coordinate that generally starts at zero and ends at the feature length. The measure units are US Survey Feet. Priority is a value that represents the volume of traffic that utilizes a specific road. Super A (highest volume), A (high volume), B (lower volume), and S (Used for direct access to a school). This layer does not display residential snow routes, these types of routes are activated depending on snow quantity and available resources.

This layer is a subset of the zoning boundaries for the City and County of Denver, Colorado to reflect the zone districts in the ‘new code’ that permit plant nurseries as a primary use. ‘Plant Nursery’ is an agricultural use in which plants are grown, cultivated, produced, or managed for the on-site or off-site sale of such plants or their products, or for their use in any other business, research, or commerce. Other customarily incidental products may be sold with the plants. A plant nursery may include accessory aquaculture use, when the aquaculture is integral to the growing and maintenance of the plants, and provided the accessory aquaculture occurs within a completely enclosed structure. Additional information on plant nursery can be found in Sections 11.6.3 and 11.12.6 in the official zoning code. The zoning boundaries data layer is governed by ordinance and is only changed accordingly. Please note: this layer applies to the ‘new code’ only. Zones carried over from the 1956 zoning code, as well as 'DIA', 'OS-A', 'PUD', 'PUD-G' zones, need to be reviewed individually.

An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation has been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. For this dataset, 1-foot nominal pixel resolution natural color aerial photography was contracted by USGS for the greater Denver metropolitan area with supplemental areas of interest added by the Denver Regional Council of Governments (DRCOG). Digital orthimages were obtained through a cooperative agreement between the USGS and DRCOG. Orthoimages were created by contrator in the state plane coordinate system for DRCOG. Reprojection to Universal Transverse Mercator (UTM) projection was done by contractor for USGS. The USGS resampled UTM orthoimages to a 0.3-meter pixel resolution 1500 X 1500-meter ground coverage footprint. There is no image overlap between adjacent files. The naming convention is based on the U.S. National Grid (USNG), taking the coordinates of the SW corner of the orthoimage. NOTE: This EML metadata file does not contain important geospatial data processing information. Before using any NWT LTER geospatial data read the arcgis metadata XML file in either ISO or FGDC compliant format, using ArcGIS software (ArcCatalog > description), or by viewing the .xml file provided with the geospatial dataset.