Data API

State Boundaries for NJ, PA, DE, and MD (line)

Boundaries
Data Steward
DVRPC GIS
Update Frequency
as needed
Metadata Last Modified
November 4, 2025
Dataset Type
Geospatial
Source
Delaware Valley Regional Planning Commission (DVRPC)
Organization Type
Planning Commission
Use Limitations
Unrestricted: can be shared internally and externally without data sharing agreement
License
No License Provided

State boundaries for Pennsylvania, New Jersey, Delaware, Maryland, New York, Connecticut, and the District of Columbia. Original Sources: PA - PennDOT NJ - NJOIT DE - DE Geological Survey MD, NY, CT, DC - ESRI Linework has been adjusted using the following methodology. NJ's boundaries overrode PA, since NJ's were highly accurate. PA overrode MD since PennDOT's were more accurate than ESRI's, and DE overrode PA & MD, since the "arc" of northernmost DE was a bit more accurate than PennDOT's or our original county boundaries. State boundaries in the DVRPC region have been adjusted to align with parcel data (where appropriate).

View map in GIS Catalog
objectid
id
state_name

Data Dictionary

Column Type Label Description
id Integer Shape Feature geometry.
objectid OID st_length(shape) Internal feature number.
state_name String Id Internal feature number.
shape Geometry State_Name Feature geometry.
st_length(shape) Double SHAPE Feature geometry.