--- title: "US port code 3510: Duluth, MN-Superior, Wisconsin · Adhoc" description: "3510 is the US port of exit code for Duluth, MN-Superior, Wisconsin on Canadian customs declarations." canonical: "https://www.adhocs.ca/us-ports-of-exit/3510" last_updated: 2026-07-27 --- # 3510 Duluth, MN-Superior, Wisconsin US port of exit US port of exit · Port of entry 3510 is the US code for the port of Duluth, MN-Superior, Wisconsin. A Canadian declaration uses it when goods left the United States through Duluth. - **Port code:** 3510 - **Port:** Duluth, MN-Superior - **State:** [Wisconsin](https://www.adhocs.ca/us-ports-of-exit/wisconsin) - **CBP district:** Minneapolis, MN - **Kind:** Port of entry ## Other US ports in Wisconsin - [3511](https://www.adhocs.ca/us-ports-of-exit/3511) Ashland (Port of entry) - [3701](https://www.adhocs.ca/us-ports-of-exit/3701) Milwaukee (Port of entry) - [3702](https://www.adhocs.ca/us-ports-of-exit/3702) Marinette (Port of entry) - [3703](https://www.adhocs.ca/us-ports-of-exit/3703) Green Bay (Port of entry) - [3706](https://www.adhocs.ca/us-ports-of-exit/3706) Manitowoc (Port of entry) - [3708](https://www.adhocs.ca/us-ports-of-exit/3708) Racine (Port of entry) ## Good to know - **Which US port.** CBSA defines it as the US port where the truck or train crosses into Canada, or the one nearest to where it crosses. For goods sent by ship or plane, it is the US port where they were loaded. - **Courier shipments.** Low-value courier shipments name 1001, New York, as the US port of exit. Also in this directory: [CBSA offices](https://www.adhocs.ca/cbsa-offices) · [Warehouse codes](https://www.adhocs.ca/cbsa-warehouses) · [Border crossings](https://www.adhocs.ca/border-crossings) ## Questions ### What is US port code 3510? The code for the port of Duluth, MN-Superior, Wisconsin. On a Canadian declaration, it says the goods left the United States through it. ## Sources - [Ports of entry](https://www.cbp.gov/contact/ports), U.S. Customs and Border Protection - [Memorandum D17-1-10, Coding of Customs Accounting Documents](https://www.cbsa-asfc.gc.ca/publications/dm-md/d17/d17-1-10-eng.html), Canada Border Services Agency Adhoc is not affiliated with CBSA or CBP.