ZIP Code 84056 — Hill Air Force Base, UT
84056 is a standard (street delivery) ZIP code serving Hill Air Force Base, Utah, in Davis County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 84056 at a glance
| ZIP code | 84056 |
|---|---|
| Primary city | Hill Air Force Base |
| State | Utah (UT) |
| County | Davis FIPS 49011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 3,803 |
| Coordinates | 41.126790, -111.990840 |
How ZIP+4 works in 84056
The four digits after the hyphen encode a delivery segment inside 84056. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 84056 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 84056.
| ZIP | City | Distance |
|---|---|---|
| 84405 | Ogden, UT | 2.5 mi |
| 84015 | Clearfield, UT | 3.7 mi |
| 84041 | Layton, UT | 3.8 mi |
| 84067 | Roy, UT | 4.3 mi |
| 84408 | Ogden, UT | 5.3 mi |
| 84040 | Layton, UT | 5.5 mi |
| 84075 | Syracuse, UT | 6.2 mi |
| 84403 | Ogden, UT | 6.5 mi |
| 84401 | Ogden, UT | 6.8 mi |
| 84315 | Hooper, UT | 8.1 mi |
| 84037 | Kaysville, UT | 10.1 mi |
| 84025 | Farmington, UT | 11.4 mi |
Questions about 84056
What is the ZIP+4 code for 84056?
84056 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 84056, you need to look up a specific street address to get them.
What city is 84056?
84056 is assigned to Hill Air Force Base, Utah, in Davis County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.