ZIP Code 46166 — Paragon, IN
46166 is a standard (street delivery) ZIP code serving Paragon, Indiana, in Morgan 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 46166 at a glance
| ZIP code | 46166 |
|---|---|
| Primary city | Paragon |
| State | Indiana (IN) |
| County | Morgan FIPS 18109 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 2,813 |
| Coordinates | 39.426860, -86.587550 |
How ZIP+4 works in 46166
The four digits after the hyphen encode a delivery segment inside 46166. 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 46166 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 46166.
| ZIP | City | Distance |
|---|---|---|
| 47433 | Gosport, IN | 6.1 mi |
| 47456 | Quincy, IN | 6.4 mi |
| 46125 | Eminence, IN | 7.2 mi |
| 46151 | Martinsville, IN | 8.7 mi |
| 47464 | Stinesville, IN | 9.4 mi |
| 46157 | Monrovia, IN | 9.5 mi |
| 47429 | Ellettsville, IN | 10.5 mi |
| 46180 | Stilesville, IN | 11.8 mi |
| 46120 | Cloverdale, IN | 12.2 mi |
| 46111 | Brooklyn, IN | 14.1 mi |
| 47404 | Bloomington, IN | 14.2 mi |
| 47468 | Unionville, IN | 14.2 mi |
Questions about 46166
What is the ZIP+4 code for 46166?
46166 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 46166, you need to look up a specific street address to get them.
What city is 46166?
46166 is assigned to Paragon, Indiana, in Morgan 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.