← All Data Sources

GIS Boundary Data Sources

Geographic boundary data from authoritative government agencies

Geographic boundary data is sourced from authoritative government agencies for interactive maps, spatial queries, and jurisdiction lookups.

Source URL Data Provided
US Census TIGER/Line census.gov US counties, places, county subdivisions, school districts, congressional districts
US Census Gazetteer Files census.gov Centroid coordinates and land areas for US places and subdivisions
California State Geoportal gis.data.ca.gov Special district boundaries, LAFCOs, fire districts
USGS Protected Areas Database (PAD-US 4.0) usgs.gov County and local park facility boundaries from the Fee Managers feature class, filtered to locally managed and owned parks (designation types LP and LREC)
MassGIS mass.gov Massachusetts town boundaries, school districts
NYS GIS Clearinghouse gis.ny.gov New York counties, towns, villages boundaries
Statistics Canada Boundary Files statcan.gc.ca Province, census division, and census subdivision boundaries
NRCan Aboriginal Lands open.canada.ca Canadian Indian reserves, settlements, and land claims boundaries
Ordnance Survey Ireland (OSi) osi.ie Irish county boundaries, electoral divisions
ONS Geography (UK) ons.gov.uk UK council areas, wards, constituencies
BIA AIAN-LAR bia.gov 335+ US tribal trust/restricted fee land boundaries
US Census TIGER AIANNH census.gov ~600 US tribal area boundaries (includes state-recognized, Alaska Native villages)
NZ Iwi Boundaries data.govt.nz ~100 Maori iwi rohe (Fisheries Act Schedule 3)
NNTT Spatial Data (Australia) nntt.gov.au Australian native title determinations and claims
BKG VG250 (Germany) bkg.bund.de German state and district administrative boundaries
geoBoundaries (Japan, New Zealand) geoboundaries.org Prefecture boundaries (Japan), region and territorial authority boundaries (NZ)
GADM v4.1 gadm.org Administrative boundaries for Algeria, Angola, Argentina, Belgium, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Bulgaria, Burundi, Cambodia, Cameroon, Chad, Chile, China, Colombia, Croatia, Cuba, Czech Republic, DR Congo, Dominican Republic, Ecuador, Egypt, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Finland, France, Gabon, Ghana, Greece, Guatemala, Guinea, Guyana, Honduras, Hungary, Indonesia, Iran, Iraq, Italy, Ivory Coast, Kazakhstan, Kenya, Kosovo, Kyrgyzstan, Laos, Latvia, Lebanon, Libya, Lithuania, Madagascar, Malawi, Malaysia, Mali, Mauritania, Mexico, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Myanmar, Namibia, Nepal, Netherlands, Nicaragua, Niger, Nigeria, North Macedonia, Norway, Pakistan, Palestine, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Republic of the Congo, Romania, Russia, Rwanda, Saudi Arabia, Senegal, Serbia, Sierra Leone, Slovakia, Slovenia, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, Uruguay, Uzbekistan, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe