ZIP Code 37770 — Lancing, TN
37770 is a standard (street delivery) ZIP code serving Lancing, Tennessee, 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 37770 at a glance
| ZIP code | 37770 |
|---|---|
| Primary city | Lancing |
| State | Tennessee (TN) |
| County | Morgan FIPS 47129 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,756 |
| Coordinates | 36.152390, -84.641800 |
How ZIP+4 works in 37770
The four digits after the hyphen encode a delivery segment inside 37770. 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 37770 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 37770.
| ZIP | City | Distance |
|---|---|---|
| 37887 | Wartburg, TN | 5.4 mi |
| 37872 | Sunbright, TN | 8.3 mi |
| 37829 | Oakdale, TN | 10.6 mi |
| 37845 | Petros, TN | 11.2 mi |
| 37726 | Deer Lodge, TN | 11.5 mi |
| 37732 | Elgin, TN | 12.1 mi |
| 37852 | Robbins, TN | 12.4 mi |
| 37733 | Rugby, TN | 14.4 mi |
| 37719 | Coalfield, TN | 14.9 mi |
| 37748 | Harriman, TN | 15.8 mi |
| 37840 | Oliver Springs, TN | 16.4 mi |
| 38558 | Crossville, TN | 16.4 mi |
Questions about 37770
What is the ZIP+4 code for 37770?
37770 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 37770, you need to look up a specific street address to get them.
What city is 37770?
37770 is assigned to Lancing, Tennessee, 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.