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Public-images-osm logo.svg boundary
The boundary tag is used to mark the borders of areas, mostly political, but possibly also of other administrative areas. Edit this description in the wiki page. Edit this description in the data item.
Group: Boundaries
Used on these elements
may be used on nodesmay be used on waysmay be used on areasmay be used on relations
Documented values: 34
Useful combination
Status: de facto


See also Boundaries

Boundaries mark the borders of areas, mostly political, but also of other administrative areas. See Boundaries for more details.


See below for the main values of the boundary key:

Key Value Element Comment Rendering example Photo

Boundary types

boundary aboriginal_lands arearelation A boundary representing official reservation boundaries of recognized aboriginal / indigenous / native peoples.
Boundary aboriginal lands.png
Entering Hualapai Indian Reservation.jpg
boundary administrative area An administrative boundary. Subdivisions of areas/territories/jurisdictions recognised by governments or other organisations for administrative purposes. These range from large groups of nation states right down to small administrative districts and suburbs, as indicated by the 'admin_level=*' combo tag.
Rendering-adminlevel 2-mapnik.png
Lake city sign.jpg
boundary border_zone arearelation A border zone is an area near the border where special restrictions on movement apply. Usually a permit is required for visiting.
Wymiana tablic informacyjnych w strefie nadgranicznej (Babia Góra) - crop.jpg
boundary forest arearelation A delimited forest is a land which is predominantly wooded and which is, for this reason, given defined boundaries. It may cover different tree stands, non-wooded areas, highways… but all the area within the boundaries are considered and managed as a single forest.
20210104 152558.jpg
boundary forest_compartment arearelation A forest compartment is a numbered sub-division within a delimited forest, physically materialized with visible, typically cleared, boundaries.
20210105 093243.jpg
boundary hazard area A designated hazardous area, with a potential source of damage to health, life, property, or any other interest of value.
boundary maritime area Maritime boundaries which are not administrative boundaries: the Baseline, Contiguous Zone and EEZ (Exclusive Economic Zone).
Sea boundaries.png
boundary marker node A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary. See also historic=boundary_stone
Boundary marker - Jeseniky, Czech Republic 12.jpg
boundary national_park area Area of outstanding natural beauty, set aside for conservation and for recreation (Other languages).
National park.png
Kings Canyon NP Sign.JPG
boundary place wayrelation boundary=place is commonly used to map the boundaries of a place=*, when these boundaries can be defined but these are not administrative boundaries.
boundary political area Electoral boundaries
boundary postal_code area Postal code boundaries
boundary protected_area area Protected areas, such as for national parks, marine protection areas, heritage sites, wilderness, cultural assets and similar.

Loading map...

Yatsuhigata 04x4720s.jpg
boundary special_economic_zone area A government-defined area in which business and trade laws are different.
Steung Hav Special Economic Zone.jpg
boundary disputed area relation An area of landed claimed by two or more parties (use with caution). See also Disputed territories.
Kashmir Region November 2019.jpg
boundary user defined node way All commonly used values according to Taginfo


admin_level (number) area Applies to boundary=administrative and is usually in the range 1 to 10, except for several countries (Bolivia, Germany, Mozambique, Netherlands, Philippines, Poland, Turkmenistan, Venezuela) where it is in the range 1 to 11 – see boundary.
Santa Catarina location.png
border_type * way area To distinguish between types of boundary where admin_level isn't enough. Used in several different ways e.g in maritime contexts.
start_date (date) area Useful if the boundary is very recent (or if it will become effective in a near future).
Connel bridge plate.jpg

This table is a wiki template with a default description in English. Editable here.

See also

Relation:boundary for boundary relations.