ZIP Code 51510 — Carter Lake, IA
51510 is a standard (street delivery) ZIP code serving Carter Lake, Iowa, in Pottawattamie 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 51510 at a glance
| ZIP code | 51510 |
|---|---|
| Primary city | Carter Lake |
| State | Iowa (IA) |
| County | Pottawattamie FIPS 19155 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,767 |
| Coordinates | 41.288440, -95.917150 |
How ZIP+4 works in 51510
The four digits after the hyphen encode a delivery segment inside 51510. 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 51510 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 51510.
| ZIP | City | Distance |
|---|---|---|
| 68110 | Omaha, NE | 0.8 mi |
| 68102 | Omaha, NE | 2 mi |
| 68178 | Omaha, NE | 2.2 mi |
| 68111 | Omaha, NE | 2.5 mi |
| 68183 | Omaha, NE | 2.5 mi |
| 68131 | Omaha, NE | 3 mi |
| 68108 | Omaha, NE | 3.6 mi |
| 68105 | Omaha, NE | 4.1 mi |
| 68104 | Omaha, NE | 4.4 mi |
| 51501 | Council Bluffs, IA | 4.6 mi |
| 68132 | Omaha, NE | 4.7 mi |
| 68182 | Omaha, NE | 5.3 mi |
Questions about 51510
What is the ZIP+4 code for 51510?
51510 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 51510, you need to look up a specific street address to get them.
What city is 51510?
51510 is assigned to Carter Lake, Iowa, in Pottawattamie 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.