Delaware carries an unusually dense cluster of Amazon fulfillment centers for its size, concentrated almost entirely in New Castle County. Most of them are labeled PHL, after Philadelphia. That naming tells you what the buildings are actually for, and it is the most useful thing on this page.
They are not there to serve Delaware. They are there to serve the Philadelphia metropolitan area, the New Jersey corridor, and the northeast beyond it, from a state that offered cheaper land a short drive from all of it.
If you arrived looking for warehouse work rather than seller information, Amazon publishes current openings on its own hiring site, which will always be more accurate than an article. Everything below is written for sellers.
Amazon warehouse locations in Delaware
| Code | Address | Zip | Type | County |
|---|---|---|---|---|
| MTN1 | 1025 Boxwood Rd, Wilmington | 19804 | Fulfillment center | New Castle |
| PHL1 | 1 Centerpoint Blvd, New Castle | 19720 | Fulfillment center | New Castle |
| PHL7 | 560 Merrimac Ave, Middletown | 19709 | Fulfillment center | New Castle |
| PHL8 | 727 N Broad St, Middletown | 19709 | Fulfillment center | New Castle |
| ILG1 | 780 S Dupont Hwy, New Castle | 19720 | Fulfillment center | New Castle |
| MTN1 A/R | 801 Boxwood Rd, Wilmington | 19804 | Sortation | New Castle |
| HPH4 | 1500 Johnson Way, New Castle | 19720 | Support facility | New Castle |
| WDE1 | 1700 Dulaney St, Seaford | 19973 | Delivery station | Sussex |
Treat this as a reference point rather than a live inventory. Amazon opens buildings. It converts them. It closes them. It reassigns codes to unrelated sites. Anything operationally important belongs in Seller Central, not in a published table.
Notice the geography. Seven of the eight sit in New Castle County, at the top of the state within easy reach of Philadelphia. One delivery station covers everything south of that. Delaware’s Amazon network is really a northeastern network that happens to have a Delaware address.
What the codes are telling you
Amazon names facilities after the nearest airport, and Delaware is the clearest illustration of why that matters.
PHL is Philadelphia International. ILG is Wilmington’s own airport. MTN is Baltimore’s Martin State. Three different metropolitan areas claiming buildings inside one small state, which is exactly what you would expect where three metros converge.
The practical value: when Seller Central assigns you PHL7, you can read the northeastern corridor from the code before looking anything up. We tested reading codes this way against actual destinations and it orients you quickly. Amazon does reassign them, so I would not treat it as more than orientation.
A leading D marks a delivery station in most regions. A leading H or X tends to indicate support or specialized sites. Neither holds seller inventory.
Which of these could hold your stock
Only the fulfillment centers, which in Delaware is most of them. That ratio is unusual.
| Type | What happens there | Holds seller inventory? |
|---|---|---|
| Fulfillment center | Stores goods, picks and packs orders | Yes |
| Amazon Warehousing and Distribution | Bulk storage upstream of FBA | Yes |
| Sortation center | Sorts outbound parcels by destination | No |
| Delivery station | Last-mile dispatch to customers | No |
| Locker, hub, counter | Customer pickup point | No |
Most states carry many more delivery stations than fulfillment centers, because reaching a dispersed population needs many small nodes while storing goods needs a few large ones. Delaware inverts that. It is storage ground for somebody else’s population.
You still do not choose which one receives your inventory
The question underneath most searches here.
When you build an inbound shipment through Send to Amazon, Amazon assigns the destinations. You supply products and quantities. It returns addresses, drawn from network planning models weighing forecast demand, current capacity, and inbound cost across the whole country, with your own location contributing essentially nothing.
Three consequences:
Shipments split. One order becomes four deliveries across three states. Normal. It looks alarming the first time and I would resist opening a support case about it.
Consolidating costs money. Amazon charges an inbound placement service fee when you send to fewer destinations than its network prefers. Splitting more widely reduces it and complicates your freight. Our guide to FBA storage fees covers where that sits among the other charges.
You cannot deliver in person. Inbound freight needs a shipment plan, compliant labels, and a booked appointment. Arriving without them means being refused, and I’ve found sellers genuinely try.
The Delaware tax question, carefully
This is the part worth reading, because Delaware attracts more tax confusion than any other state on this topic and most of it is wrong.
Delaware has no state sales tax. True, and largely irrelevant to you. Sales tax on marketplace orders is determined by where the buyer is, not by where the goods were stored, and Amazon collects and remits it under marketplace facilitator laws in every state that has one.
Delaware incorporation is a separate matter entirely. Enormous numbers of companies incorporate in Delaware for corporate law reasons that have nothing to do with warehouses. Our guide to DBA or LLC for Amazon sellers covers entity choice, and I would not let a fulfillment center address influence that decision in either direction.
Stored inventory and income tax is the real question. Holding goods in a state has been argued to create income or franchise tax obligations there, and states take differing positions. Our guide to the Amazon Tax Document Library covers where that sits. It is genuinely a question for an accountant rather than an article, and it is the only item on this page where a wrong assumption costs money.
What this changes operationally
Freight from the ports. Delaware assignments sit near the northeastern container gateways, which is convenient if your goods land there and expensive if they land in Los Angeles. Our guide to finding a reliable shipping agent covers planning that leg properly.
Delivery speed into a dense market. Stock positioned here reaches an enormous population quickly, which supports conversion. You do not control the placement. Sending depth rather than a trickle gives Amazon room to distribute.
Removals. Removal orders are processed wherever Amazon designates, frequently nowhere near where the goods sat. I’ve found sellers assume stock returns from the state it left, and it rarely does.
Finding where your inventory actually is
More useful than any state list, and rarely done.
Inventory reports in Seller Central show your stock by fulfillment center and SKU. Authoritative for your account, and in our experience it never resembles a published location list.
Your shipment history records where Amazon has routed you before, which predicts the next assignment better than anything else available.
The Send to Amazon workflow displays destinations before you commit, while the freight implications can still be acted on.
Our guides to shipping options for Amazon sellers and warehouse locations in Oklahoma cover the same ground for a differently shaped network, and our account management service covers having freight, placement fees, and inventory positioning handled together.
FAQ
How many Amazon warehouses are in Delaware?
Around eight facilities are publicly identified, and unusually most are fulfillment centers rather than delivery stations. Seven of the eight sit in New Castle County at the top of the state, with a single delivery station covering the south.
Why do Delaware Amazon warehouses have Philadelphia codes?
Because they serve the Philadelphia metropolitan area rather than Delaware. Amazon names facilities after the nearest airport, and the PHL cluster reflects buildings positioned on cheaper Delaware land within easy reach of a much larger population across the state line.
Can I send FBA inventory to a Delaware fulfillment center?
Not by choice. Amazon assigns inbound destinations through Send to Amazon based on its own network planning, not your location or preference, and may split a single shipment across several facilities in different states.
Does Delaware having no sales tax help Amazon sellers?
Not meaningfully. Sales tax on marketplace orders is determined by the buyer’s location, not by where inventory was stored, and Amazon collects and remits it under marketplace facilitator laws. Delaware’s lack of a sales tax does not change your obligations.
Should I incorporate in Delaware because Amazon stores inventory there?
No. Delaware incorporation is a corporate law decision with no connection to fulfillment center locations. Choose an entity structure on its own merits and take advice on it rather than letting a warehouse address influence the choice.
Does storing inventory in Delaware create a tax obligation?
Possibly for income or franchise tax purposes, since states take differing positions on whether stored inventory creates one. Sales tax on marketplace sales is generally handled by Amazon. This is a question for an accountant rather than an article.
Last updated: August 29, 2026. Amazon opens, converts, and closes facilities continually and reassigns codes. Seller Central inventory reports and the Send to Amazon workflow carry the authoritative position for your own inventory. If you are looking for warehouse employment rather than seller information, Amazon’s own hiring site carries current openings.
