DM Prefix and Three-Letter Structure
Dominica uses the country prefix DM in UN/LOCODE references. The following three letters identify the individual location or port record, such as DMRSU, DMROS, DMDOM and DMPOR.
Seaports in Dominica: Port Codes, Throughput & Regional Guide (2026)
Dominica has 4 ports and terminals indexed in the Ecer Freight database, supporting regional Caribbean shipping and general cargo connectivity.
Review UN/LOCODE references, indexed port coverage, regional roles and indicative shipping lanes for Dominica.
Dominica Port Overview
Dominica is a small Caribbean island market where port activity is primarily linked to local supply chains, general cargo, passenger services and regional maritime connections. Ecer Freight coverage distinguishes indexed port and terminal records from national throughput statistics.
4
Dominica ports & terminals indexed in our database
Ecer Freight database · Nov 2026
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National cargo throughput, 2025; YoY change not publicly reported
Dominica official statistics · 2025
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Container throughput, 2025; YoY change not publicly reported
Dominica official statistics · 2025
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Commercial berth count, 2025; YoY change not publicly reported
Dominica port and transport sources · 2025
How many seaports does Dominica have?
Dominica has 4 seaports and terminals indexed by Ecer Freight in its Nov 2026 database snapshot.
What is Dominica’s main port?
Roseau is the principal named port in the indexed sample, represented by DMRSU and the DMROS record; operational status and cargo handling should be confirmed for each shipment.
Which areas support Dominica’s main cargo activity?
Roseau and Portsmouth are the clearest indexed cargo locations for Dominica, with DMRSU, DMROS and DMPOR providing the principal location references in the database.
Top Ports in Dominica by Indexed Activity
The table below covers all four Dominica port and terminal records in the Ecer Freight sample. A national container league-table rank, 2025 TEU throughput and verified year-on-year change are not publicly available for these individual records; therefore the three related fields are shown consistently as unavailable.
Dominica port records and 2025 container indicators
| World rank | Port | UN-LOCODE | 2025 throughput (M TEU) | YoY change | Region |
|---|---|---|---|---|---|
| — | Roseau | DMRSU | — | — | Roseau area |
| — | Roseau | DMROS | — | — | Roseau area |
| — | Greater Santo Domingo | DMDOM | — | — | Indexed regional record |
| — | Portsmouth, Dm | DMPOR | — | — | Portsmouth area |
Dominica Port Regions and Cargo Roles
Roseau Area
Roseau is the principal urban and maritime reference in the indexed sample. The two Roseau records may represent different location or facility coding layers and should be checked against booking instructions.
Roseau-related records
Portsmouth Area
Portsmouth provides a northern Dominica location reference for cargo planning. Sailing schedules, draft restrictions and available handling services are subject to carrier and terminal confirmation.
Northern Dominica record
| Port | UN-LOCODE | City / Province | Main cargo role |
|---|---|---|---|
| Portsmouth, Dm | DMPOR | Portsmouth / — | Local and regional general cargo reference |
Additional Indexed Regional Record
The following record is retained in the Dominica sample under the DM prefix. Its location and operational role should be validated with the carrier, consignee or local agent before use in shipping instructions.
Additional database record
| Port | UN-LOCODE | City / Province | Main cargo role |
|---|---|---|---|
| Greater Santo Domingo | DMDOM | Greater Santo Domingo / — | Indexed port-location reference; operational role subject to confirmation |
Dominica UN/LOCODE Port Codes
City-Level and Terminal-Level Records
A city-level code may identify a broader transport location, while a terminal-level or facility record can describe a more specific operational point. The correct code depends on the carrier booking, bill of lading and delivery instructions.
How to Verify a Port Code
Compare the code with the official UN/LOCODE reference at UNECE and cross-check the current Ecer Freight port directory before submitting shipping documents.
Shipping from Dominica: Main Trade Lanes
Dominica’s international sea freight is generally arranged through Caribbean transshipment networks and connections with larger regional gateways. Transit times vary by sailing frequency, transshipment routing, weather, equipment availability and customs procedures.
Dominica to North America
A practical option for commercial cargo moving from Dominica toward United States and Canadian markets through regional hub connections.
Dominica to Europe
European shipments generally rely on a Caribbean transshipment point before onward ocean movement to the selected European gateway.
Dominica to the Caribbean
Regional movements support replenishment, project cargo and general commercial shipments between Dominica and nearby Caribbean markets.
Dominica to Latin America
Latin American cargo may be routed through regional hubs, with the final schedule depending on carrier coverage and available connections.
Data Sources and Methodology
- Ecer Freight Ports Database — first-party indexed coverage of 4 Dominica port and terminal records, snapshot reviewed in Nov 2026.
- UNECE — UN/LOCODE structure and location-code reference framework.
- National Geospatial-Intelligence Agency — maritime location and navigational reference material.
- Dominica Central Statistical Office — national statistical context, where published, for the 2025 reference year.
- Government of Dominica — official government context for transport and maritime administration.
Dominica Port FAQ
How many seaports does Dominica have?
Dominica has 4 seaports and terminals indexed by Ecer Freight as of the Nov 2026 data snapshot.
What is the busiest port in Dominica?
Roseau is the leading named port reference in the indexed sample, with DMRSU and DMROS records. A verified national port-by-port throughput ranking is not publicly available in the reviewed data.
What are the main port codes for Dominica?
The indexed Dominica records are DMRSU, DMROS, DMDOM and DMPOR. Carrier instructions should be checked because a location code and an operating terminal reference may differ.
Which regions of Dominica are represented by the indexed ports?
The sample includes Roseau records, a Portsmouth record and an additional Greater Santo Domingo record. The latter should be operationally validated before use because database naming and local handling arrangements may require confirmation.
How current is the Dominica port data?
The first-party indexed coverage was reviewed for the Nov 2026 snapshot. National metrics use the latest complete reference year available for this page, generally 2025, and shipping schedules remain subject to change.
Are 2025 container throughput figures available for Dominica?
A reliable public 2025 container throughput figure and verified year-on-year change were not available for the individual indexed Dominica records, so the league-table fields are shown as unavailable rather than estimated.
How can a shipper request a Dominica sea freight quote?
A shipper can compare available FCL sea freight rates or LCL sea freight rates, then confirm the exact port code, cargo details, equipment, sailing schedule and destination requirements.
Editorial note: This page combines Ecer Freight’s first-party port index with publicly available maritime and statistical references. Indexed port coverage is reviewed quarterly, while throughput, berth and schedule information is updated when reliable official or industry data becomes available.
Ecer Freight · Seaports in Dominica: Port Codes, Throughput & Regional Guide (2026) · Data reviewed quarterly · Port Codes · Ports by Country · Contact