Erin, Saint Croix, WI 54017 | Shipping Guide
Check ZIP Code 54017 for Erin, United States address format, B2B shipping considerations, customs notes, and a practical pre-shipment address checklist.
Saint Croix · Wisconsin Postal Codes
Overview
Erin is a locality associated with the Saint Croix area of Wisconsin, United States, and is linked here with postal code 54017. This guide outlines its location and postal-code details, explains a practical United States address format, and highlights shipping considerations for international mail and commercial freight.
Postal Code
Erin is associated with ZIP Code 54017. For international mail and courier shipments, use the postal code together with the recipient’s full name, complete street address, city, state abbreviation, and a reachable telephone number. United States ZIP Codes use five digits; an optional four-digit extension may be used when confirmed for the exact delivery address.
Quick Location Information
| Area / Place | Erin |
|---|---|
| City | Saint Croix |
| State/Province | Wisconsin |
| Postal Code | 54017 |
| Country | United States |
| Country Code | US |
The place and city labels shown here reflect the location hierarchy used for this guide. Confirm the USPS-preferred mailing city and ZIP pairing for the recipient’s exact street address before dispatch.
Location — Where Is Erin?
Erin is identified as a locality associated with Saint Croix in Wisconsin, in the United States. The supplied geographic hierarchy places the locality within the Saint Croix area and the state of Wisconsin; it does not establish a more specific municipality, county, or postal delivery city. Erin should therefore be treated as a locality-level destination rather than assumed to be a major urban, industrial, or transport hub.
For delivery planning, the operationally important detail is the recipient’s exact street address and the USPS-recognized city and ZIP combination. A locality name may be useful as an additional line, but it should not replace the mailing city required by a carrier’s address-validation system. Destinations outside dense urban delivery areas can involve additional handoffs within the carrier’s regional network, so service availability and any delivery-area surcharges should be checked against the full address with the selected carrier.
Address Format
How to Write the Address
- Enter the recipient’s full name on the first line; add the company name on the next line when applicable.
- Write the delivery street address, including the street number and any suite, unit, or building identifier, on its own line.
- Use the USPS-preferred mailing city, followed by the two-letter state abbreviation and five-digit ZIP Code on the same line. Include a ZIP+4 extension only when verified for that address.
- For international dispatch, place UNITED STATES alone on the final line. Keep the address in Latin characters and use the domestic address order shown below.
- Erin may be included as an additional locality line if the recipient or carrier confirms it helps identify the destination. Do not use it instead of the carrier-validated mailing city.
International Address Example
Recipient Name
Company Name (if applicable)
Street Address, Suite or Unit
Erin
Saint Croix, WI 54017
UNITED STATES
This example uses the location hierarchy supplied for this guide; it does not verify that Saint Croix is the USPS-preferred mailing city for every address associated with Erin. Replace the generic recipient and street details, and confirm the exact mailing city and ZIP pairing with the recipient or USPS before shipping.
One-line reference: Erin, Saint Croix, WI 54017, United States
Business & Logistics
Common B2B Shipment Categories
- Product samples and non-hazardous evaluation items
- Machinery components, tools, and replacement parts
- Electronic components and control equipment
- Commercial documents, contracts, and technical paperwork
- Apparel, textile products, and related accessories
- Packaged consumer goods and retail replenishment shipments
Transport and Delivery Considerations
- International express or postal parcel services are typically suited to documents and compact, time-sensitive consignments; air freight may be considered for larger or higher-value cargo.
- Ocean freight, by LCL or FCL, can be suitable for larger-volume shipments. The final delivery leg must be arranged from the relevant United States gateway to the confirmed delivery address.
- Carrier routing and final-mile service depend on the complete street address, validated mailing city, ZIP Code, shipment dimensions, and service eligibility. Confirm any delivery-area surcharge or access restriction with the carrier.
- Commercial goods require an accurate description, quantity, value, country of origin, and appropriate customs documentation. Documents and non-document goods should be declared according to their actual contents and the selected service rules.
- Import clearance requirements vary by commodity and shipment circumstances. Provide a reachable consignee telephone number and any importer or tax identifiers required for the specific transaction; verify requirements with the customs broker or carrier before dispatch.
Postal Code FAQ
What is the postal code of Erin?
Erin is associated with ZIP Code 54017 in this location guide. Confirm the ZIP Code against the recipient’s exact street address before shipment.
Where is Erin located?
Erin is listed as a locality associated with Saint Croix, Wisconsin, United States. The locality name should be distinguished from the USPS-preferred mailing city used for delivery.
How should an international package to Erin be addressed?
Include the recipient, street address, carrier-validated mailing city, two-letter state abbreviation, ZIP Code, and UNITED STATES on the final line. Add Erin as a locality line only when confirmed as useful for the address.
Does ZIP Code 54017 identify Erin and Saint Croix in Wisconsin?
This guide associates Erin and Saint Croix, Wisconsin, with 54017 based on the location hierarchy provided. ZIP Code delivery boundaries and preferred mailing-city names do not necessarily match locality or municipal labels, so validate the full address using USPS or the carrier’s address tool.
What address details are needed for a commercial shipment to Erin?
Provide the legal recipient or company name, complete street address and unit details, validated mailing city, state, ZIP Code, country, and telephone number. Include a precise goods description, declared value, origin, and any shipment-specific customs or importer information.
Address & Shipping Checklist
- Recipient’s full legal name
- Company name and department, if applicable
- Complete street address, including building, suite, or unit
- Locality line: Erin, if confirmed for the delivery address
- USPS-preferred mailing city, verified with the recipient or carrier
- State abbreviation: WI
- ZIP Code: 54017; verify ZIP+4 if being used
- Country name: UNITED STATES
- Recipient telephone number and email where required by the service
- Commercial invoice, accurate goods description and value, and any applicable importer or customs identifier
Summary
Erin is associated here with ZIP Code 54017 in the Saint Croix area of Wisconsin. International shipments should follow United States address order and use a carrier-validated mailing city alongside the state abbreviation and ZIP Code; confirm all street-level details with the recipient before dispatch.
Data Sources & Provenance
- Location labels: Erin, Saint Croix, Wisconsin, 54017, and US are presented according to the geographic hierarchy used for this guide. The exact delivery address and preferred mailing city require recipient or carrier confirmation.
- Postal standards and ZIP Code format: United States Postal Service, usps.com.
- International postal addressing guidance: Universal Postal Union, upu.int.
- United States import and customs information: U.S. Customs and Border Protection, cbp.gov.
These sources support general postal, addressing, and customs guidance. They do not independently establish the USPS-preferred mailing city for an individual street address or determine carrier service eligibility.
Reviewed by: International Logistics Operations Team
Review focus: United States ZIP Code, address validation and international shipment routing
Last reviewed: October 2026