ZIP Code 20745 — Oxon Hill, MD
20745 is a standard (street delivery) ZIP code serving Oxon Hill, Maryland, in Prince George's 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 20745 at a glance
| ZIP code | 20745 |
|---|---|
| Primary city | Oxon Hill |
| State | Maryland (MD) |
| County | Prince George's FIPS 24033 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 28,605 |
| Coordinates | 38.805520, -76.994950 |
How ZIP+4 works in 20745
The four digits after the hyphen encode a delivery segment inside 20745. 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 20745 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 20745.
| ZIP | City | Distance |
|---|---|---|
| 20032 | Washington, DC | 2.1 mi |
| 20748 | Temple Hills, MD | 3 mi |
| 22314 | Alexandria, VA | 3.3 mi |
| 20744 | Fort Washington, MD | 3.6 mi |
| 22301 | Alexandria, VA | 3.6 mi |
| 20373 | Naval Anacost Annex, DC | 3.7 mi |
| 20020 | Washington, DC | 4.1 mi |
| 22307 | Alexandria, VA | 4.1 mi |
| 22305 | Alexandria, VA | 4.2 mi |
| 20319 | Washington, DC | 4.4 mi |
| 20388 | Washington Navy Yard, DC | 4.6 mi |
| 20746 | Suitland, MD | 4.6 mi |
Questions about 20745
What is the ZIP+4 code for 20745?
20745 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 20745, you need to look up a specific street address to get them.
What city is 20745?
20745 is assigned to Oxon Hill, Maryland, in Prince George's 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.