This is a list of potentially useful service layers and service layer sources arranged by state. This list is built from user suggestions, so please email us if you find something which may be useful to the conservation community. We do not test every link.
This list is not actively maintained, and so some of the links may not function. Please email support if you come across a broken link. Also, remember that parcel data is notoriously unreliable and should be used for reference purposes only.
If you don't see your region in the list below, this website maintains a list of public service layers: https://servers.cartobin.com/ . Be aware that the list isn't exhaustive, so if you don't see what you're looking for it is probably worth searching a little bit more. Another good starting place is simply searching ArcGIS Online.
Vector Layers:
California
Name: Imperial County Parcels, CA APN Layer
Type: Map Service (Vector)
Link: https://services1.arcgis.com/fwUrSNrE506Uxp7v/ArcGIS/rest/services/Parcels_APN_Only/FeatureServer/0
Name: Orange County Parcels - (Treasurer Tax Collector 2020-2021) - Lists tax ID’s and addresses:
Type: Map Service (Vector)
Link: https://www.ocgis.com/arcpub/rest/services/Treasurer_Tax_Collector/20_21_Secured_Property_Tax_Information/MapServer
Name: Orange County GIS Directory
Type: Webpage
Link: https://www.ocgis.com/arcpub/rest/services
Name: Riverside County Parcels
Type: Map Service (Vector)
Link: https://gis.countyofriverside.us/arcgis_public/rest/services/OpenData/AssessorTables/MapServer
Name: San Bernadino County Parcels
Type: Map Service (Vector)
Link: https://services.arcgis.com/aA3snZwJfFkVyDuP/ArcGIS/rest/services/Parcels_for_San_Bernardino_County/FeatureServer/0
Massachusetts
Name: Gallery for MassGIS - Bureau of Geographic Information
Type: Webpage
Link: https://massgis.maps.arcgis.com/home/gallery.html?view=grid&sortOrder=desc&sortField=modified
Description: State clearinghouse for publicly available data layers. Includes parcel and open space data.
Name: Massachusetts Level 3 Parcel Data
Type: Map Service (Vector)
Link: https://services1.arcgis.com/hGdibHYSPO59RG1h/arcgis/rest/services/L3_TAXPAR_POLY_ASSESS_gdb/FeatureServer
Description: Level 3 parcel data for the state of Massachusetts
New Hampshire
Name: NH Parcel Mosaic - Polygons
Type: Feature Service (vector)
Link: https://nhgeodata.unh.edu/nhgeodata/rest/services/CAD/ParcelMosiac/MapServer/0
Description: State parcels for New Hampshire. Info found here: https://new-hampshire-geodata-portal-1-nhgranit.hub.arcgis.com/datasets/NHGRANIT::nh-parcel-mosaic-polygons/about
New Jersey
Name: New Jersey Geographic Information Network (NJGIN) Open Data portal
Type: Webpage
Link: https://njogis-newjersey.opendata.arcgis.com/
Description: State clearinghouse for publicly available data layers. Hint: You can filter out just 'feature layers' in the search function
New York
Name: Statewide Hillshade
Type: Map Service (Raster)
Link: https://elevation.its.ny.gov/arcgis/rest/services/NYS_Statewide_Hillshade/MapServer
Name: Statewide Orthoimagery
Type: Map Service (Raster)
Link: https://orthos.its.ny.gov/arcgis/rest/services/wms/Latest/MapServer
North Carolina
Name: Buncombe County Parcels
Type: Map Service (Vector)
Link: https://gis.buncombecounty.org/arcgis/rest/services/opendata/MapServer/1
Oregon
Name: DOR_ORMAP_TAXLOTS (state of Oregon tax parcels)
Type: Map Service (Vector)
Link: https://utility.arcgis.com/usrsvcs/servers/78bbb0d0d9c64583ad5371729c496dcc/rest/services/Secure/DOR_ORMAP/MapServer
Texas
Name: Statewide Parcel Layer (incomplete)
Type: Feature Service (Vector)
Link: https://feature.tnris.org/arcgis/rest/services/Parcels/stratmap19_land_parcels_48/MapServer
Info page on dataset: https://tnris.org/stratmap/land-parcels/
Vermont
Name: Statewide Parcel Layer
Type: Feature Service (Vector)
Link: https://services1.arcgis.com/BkFxaEFNwHqX3tAw/arcgis/rest/services/FS_VCGI_VTPARCELS_WM_NOCACHE_v2/FeatureServer
Info Page: https://vcgi.maps.arcgis.com/home/item.html?id=684874ccc2544544b66ec6fd3c15b171
Wisconsin
Name: Statewide Parcel Layer
Type: Feature Service (Vector)
Link: https://mapservices.legis.wisconsin.gov/arcgis/rest/services/WLIP/Parcels/FeatureServer/0
XYZ Tile Layers:
Worldwide
Name: Open Street Map
Type: XYZ Tile Layer (Basemap)
Link: https://a.tile.openstreetmap.org/{z}/{x}/{y}.png
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