ZIP Code 84018 — Croydon, UT
84018 is a standard (street delivery) ZIP code serving Croydon, Utah, in Morgan 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 84018 at a glance
| ZIP code | 84018 |
|---|---|
| Primary city | Croydon |
| State | Utah (UT) |
| County | Morgan FIPS 49029 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 182 |
| Coordinates | 41.205350, -111.427160 |
How ZIP+4 works in 84018
The four digits after the hyphen encode a delivery segment inside 84018. 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 84018 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 84018.
| ZIP | City | Distance |
|---|---|---|
| 84317 | Huntsville, UT | 12.2 mi |
| 84024 | Echo, UT | 13.7 mi |
| 84033 | Henefer, UT | 15.9 mi |
| 84050 | Morgan, UT | 17.9 mi |
| 84086 | Woodruff, UT | 18.5 mi |
| 84017 | Coalville, UT | 20.8 mi |
| 84310 | Eden, UT | 23.6 mi |
| 84403 | Ogden, UT | 24.8 mi |
| 84040 | Layton, UT | 25.6 mi |
| 84408 | Ogden, UT | 26.6 mi |
| 84405 | Ogden, UT | 28.1 mi |
| 84014 | Centerville, UT | 29 mi |
Questions about 84018
What is the ZIP+4 code for 84018?
84018 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 84018, you need to look up a specific street address to get them.
What city is 84018?
84018 is assigned to Croydon, Utah, in Morgan 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.