Address Lookup - Thanks to a collaborative effort between State agencies and local jurisdictions, Maryland's Composite Locator was developed to provide a single, robust geocode service for Maryland. The composite locator maps tabular data by matching it against geospatial features from multiple data sources.The composite aspect of the locator refers to its design to match tabular data with the first in a list of data sources. If a match is not found, the locator then "cascades" down the list of data resources searching each for the best match. The composite locator can be accessed via Esri's Desktop software or programmatically via the REST endpoint.
Address Lookup has a 99.9% uptime service level objective; excluding planned outages, maintenance windows and unavoidable events.
Web users can access the available address look-up to identify single data locations. Users can compare the matching accuracies of the different data sources.
Web users can match multiple addresses in a bulk fashion. Fast and easy to use, drag and drop a file and match up to 1,000 addresses at a time.
The composite locator currently boasts eleven (11) data sources which participate in the cascade. They are a combination of local, state and federal datasets. They include address points, mile markers and place names (e.g. - Oriole Park at Camden Yards).
Eligible: All Public
Availability (Uptime): 24 hours / 365 days
Standard Support Hours: 7am – 9pm Monday- Friday
Exceptions: The Service Desk is not available during State Holidays or Service Reduction Days
Response (to incident) Time: Based on priority, see SLA
Resolution (of incident) Time: Based on priority, see SLA
Maintenance Windows: Maintenance occurs on the 3rd Tuesday and Wednesday of every month from 7 p.m. -11 p.m.
Security: Open Access, No password required
Business Critical Service: Yes; Recovery Time – 4 hours
To request this service, please email DoIT Service Desk at firstname.lastname@example.org
Our Service Desk is here to help:
100 Community Place, Crownsville, MD 21032
300-301 West Preston Street, Baltimore MD 21201
410-697-9700 - Dial 7-1-1 to place a call through Maryland Relay