ZIP Code 64029 — Grain Valley, MO
64029 is a standard (street delivery) ZIP code serving Grain Valley, Missouri, in Jackson 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 64029 at a glance
| ZIP code | 64029 |
|---|---|
| Primary city | Grain Valley |
| State | Missouri (MO) |
| County | Jackson FIPS 29095 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 21,961 |
| Coordinates | 39.006340, -94.214730 |
How ZIP+4 works in 64029
The four digits after the hyphen encode a delivery segment inside 64029. 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 64029 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 64029.
| ZIP | City | Distance |
|---|---|---|
| 64014 | Blue Springs, MO | 2.2 mi |
| 64075 | Oak Grove, MO | 3.8 mi |
| 64015 | Blue Springs, MO | 4.7 mi |
| 64064 | Lees Summit, MO | 7.1 mi |
| 64057 | Independence, MO | 7.2 mi |
| 64016 | Buckner, MO | 7.6 mi |
| 64086 | Lees Summit, MO | 7.8 mi |
| 64011 | Bates City, MO | 8.6 mi |
| 64070 | Lone Jack, MO | 8.8 mi |
| 64074 | Napoleon, MO | 9 mi |
| 64056 | Independence, MO | 9.2 mi |
| 64063 | Lees Summit, MO | 9.9 mi |
Questions about 64029
What is the ZIP+4 code for 64029?
64029 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 64029, you need to look up a specific street address to get them.
What city is 64029?
64029 is assigned to Grain Valley, Missouri, in Jackson 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.