Signal Mountain Tennessee ZIP Codes
Signal Mountain holds a single ZIP code.
Every ZIP code in Signal Mountain
| ZIP code | County |
|---|---|
| 37377 | Hamilton County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Signal Mountain codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Signal Mountain. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Signal Mountain ZIP code begins 373. Those first three digits identify the sectional center facility that processes mail for this part of Tennessee. Statewide that range covers 87 ZIP codes, so Signal Mountain accounts for 1% of it.
Every Tennessee ZIP prefix and the region it covers →
Area codes covering Signal Mountain
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Signal Mountain occupies.
Signal Mountain Tennessee area codes in full →
Where Signal Mountain's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Signal Mountain
| City | Distance | ZIP codes |
|---|---|---|
| Chattanooga Tennessee ZIP codes | 7.5 mi | 20 ZIP codes |
| Lookout Mountain Tennessee ZIP codes | 10 mi | 1 ZIP code |
| Whitwell Tennessee ZIP codes | 11 mi | 1 ZIP code |
| Dunlap Tennessee ZIP codes | 16 mi | 1 ZIP code |
| Jasper Tennessee ZIP codes | 17 mi | 1 ZIP code |
| Collegedale Tennessee ZIP codes | 18 mi | 1 ZIP code |
| Palmer Tennessee ZIP codes | 19 mi | 1 ZIP code |
| South Pittsburg Tennessee ZIP codes | 23 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.