VerifiedAPI · SocrataFree to reuseBy address
Montgomery County open data portal
UpdatesWhen it changes
Last updatedNot stated
Get itSocrata (SODA)
ReuseFree to reuse
Portals · Maryland
Filter and exportOpen-data portals in Maryland
4 official open-data portals published in Maryland, from Montgomery County government, Prince George's County government and Baltimore (legacy Socrata, superseded) government and 1 more, plus 3 that cover it from above. Each links to the original, with its update rate and whether we've opened it.
4
75%
100%
3
Published in Maryland
VerifiedAPI · SocrataFree to reuseBy address
Prince George's County open data portal
UpdatesWhen it changes
Last updatedNot stated
Get itSocrata (SODA)
ReuseFree to reuse
VerifiedAPI · Socrata
State open data portal
UpdatesWhen it changes
Last updatedNot stated
Get itSocrata (SODA)
ReuseCheck terms
Not yet checkedAPI · SocrataFree to reuseBy address
Baltimore (legacy Socrata, superseded) open data portal
UpdatesWhen it changes
Last updatedNot stated
Get itSocrata (SODA)
ReuseFree to reuse
Covering Maryland from above
VerifiedAPI · ArcGIS
Auckland Council open data (geospatial)
UpdatesNot stated
Last updatedNot stated
Get itArcGIS REST
ReuseCheck terms
Found, not opened
DBKL OSC 3 Plus planning portal
UpdatesNot stated
Last updated2026
Get itWeb page or PDF
ReuseCheck terms
Found, not opened
Stockholm city open data portal (Dataportalen)
UpdatesNot stated
Last updatedNot stated
Get itWeb page or PDF
ReuseCheck terms