Data · dataset · 2025
Zip Codes - 5 Digit
Listed in Maryland Open Data Portal
This dataset is the Maryland ZIP codes based on the most current MD PropertyView data.
Description
In 1993, the Maryland Department of Planning and the Maryland State Highway Administration entered into a Data Base Usage Agreement with Bell Atlantic and Data Chromatics, Inc. to develop an enhanced street address map for Maryland. Zip Code boundary area files were one of the products derived from this partnership.
The resulting boundary area files were intended to improve the cartographic quality and accuracy of the zip code boundary area files derived from the U.S. Census Bureau's post 1990 Census TIGER\Line Files (based on the Census Bureau's zip code tabulation areas, ZCTAs). Subsequent iterative improvements to the Zip Code boundary area files have been made using premise address information associated with mapped parcel records as provided in the Maryland Department of Planning's MdProperty View GIS product.
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The resulting files are meant to serve as a "good approximation" of zip codes as polygons (which in reality they are not) but are not official Zip Code maps and are not meant to be a substitute for any products offered by the U.S. Postal Service, the official source for zip code information. While there are no restrictions on their use we do recommend that they are best used with MdProperty View and that MDP makes no guarantee or warranty regarding the files.
For information on the date of the data to each jurisdiction's corresponding MdProperty View edition, see the production schedule located here: planning.maryland.gov/Documents/OurProducts/PropertyMapProducts/Sched.pdf.
Links
Get the data
- CSV opendata.maryland.gov/api/views/vvis-cify/rows.csv?accessType=DOWNLOAD ↗
download · from opendata maryland gov
Where it is published
- Maryland Open Data Portal dataset page opendata.maryland.gov/dataset/Zip-Codes-5-Digit/vvis-cify ↗
landing page · from opendata maryland gov
Catalogue records · 1
- SODA API opendata.maryland.gov/resource/vvis-cify.json ↗
metadata API · from opendata maryland gov
Topics
- From keywords
- Social Science
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Maryland Open Data Portal | vvis-cify | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | |
| concepts[field].local:field:social-science | mapping · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | |
| created_date | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | |
| description | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | /resource/description |
| publication_date | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | |
| title | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 | /resource/name |
| updated_date | source · opendata maryland gov | connector:opendata_maryland_gov@1.0.0 |