ZIP Code 16435 — Springboro, PA
16435 is a standard (street delivery) ZIP code serving Springboro, Pennsylvania, in Crawford 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 16435 at a glance
| ZIP code | 16435 |
|---|---|
| Primary city | Springboro |
| State | Pennsylvania (PA) |
| County | Crawford FIPS 42039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,677 |
| Coordinates | 41.819370, -80.383560 |
How ZIP+4 works in 16435
The four digits after the hyphen encode a delivery segment inside 16435. 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 16435 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 16435.
| ZIP | City | Distance |
|---|---|---|
| 16475 | Albion, PA | 4.1 mi |
| 16401 | Albion, PA | 4.3 mi |
| 16406 | Conneautville, PA | 4.9 mi |
| 16410 | Cranesville, PA | 8 mi |
| 16443 | West Springfield, PA | 9.5 mi |
| 44082 | Pierpont, OH | 10.2 mi |
| 16417 | Girard, PA | 11.1 mi |
| 16422 | Harmonsburg, PA | 11.2 mi |
| 16411 | East Springfield, PA | 11.5 mi |
| 16424 | Linesville, PA | 11.5 mi |
| 44030 | Conneaut, OH | 11.5 mi |
| 16412 | Edinboro, PA | 12.1 mi |
Questions about 16435
What is the ZIP+4 code for 16435?
16435 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 16435, you need to look up a specific street address to get them.
What city is 16435?
16435 is assigned to Springboro, Pennsylvania, in Crawford 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.