ZIP Code 51445 — Ida Grove, IA
51445 is a standard (street delivery) ZIP code serving Ida Grove, Iowa, in Ida 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 51445 at a glance
| ZIP code | 51445 |
|---|---|
| Primary city | Ida Grove |
| State | Iowa (IA) |
| County | Ida FIPS 19093 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,485 |
| Coordinates | 42.327190, -95.467240 |
How ZIP+4 works in 51445
The four digits after the hyphen encode a delivery segment inside 51445. 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 51445 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 51445.
| ZIP | City | Distance |
|---|---|---|
| 51431 | Arthur, IA | 6 mi |
| 51006 | Battle Creek, IA | 7.5 mi |
| 51461 | Schleswig, IA | 10.7 mi |
| 51458 | Odebolt, IA | 11.8 mi |
| 51448 | Kiron, IA | 11.8 mi |
| 51025 | Holstein, IA | 12.6 mi |
| 51020 | Galva, IA | 13.1 mi |
| 51018 | Cushing, IA | 13.6 mi |
| 51019 | Danbury, IA | 13.7 mi |
| 51460 | Ricketts, IA | 14.4 mi |
| 51053 | Schaller, IA | 14.7 mi |
| 51441 | Deloit, IA | 16.4 mi |
Questions about 51445
What is the ZIP+4 code for 51445?
51445 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 51445, you need to look up a specific street address to get them.
What city is 51445?
51445 is assigned to Ida Grove, Iowa, in Ida 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.