Boundary Atlas

ZIP code 37377: Signal Mountain, TN

ZIP code 37377 is in Signal Mountain (52% of residents), Fairmount (13%), Walden (12%) and Lone Oak (7.0%), in Hamilton County (90%), Sequatchie County (9.9%) and Marion County (0.4%), Tennessee. 16% of its residents live outside city limits. It is in Tennessee's 3rd congressional district (90%) and Tennessee's 4th congressional district (10%). Its state senate districts are State Senate District 11 (90%) and State Senate District 10 (10%); its state house districts are State House District 27 (90%), State House District 31 (9.9%) and State House District 39 (0.4%).

17,004residents (2020 Census)
80.5 sq miland area
5cities and towns
2congressional districts
7voting precincts

See it on the mapAll of Tennessee

City and county

City or townShare of ZIP residents
Signal Mountain52%
Fairmount13%
Walden12%
Lone Oak7.0%
Chattanooga0.5%

CountyShare of ZIP residents
Hamilton County90%
Sequatchie County9.9%
Marion County0.4%

Town or county subdivisionShare of ZIP residents
District 290%
District 89.9%
District 40.4%

Congressional districts

Congressional districtShare of ZIP residents
Tennessee's 3rd congressional district (TN-03)90%
Tennessee's 4th congressional district (TN-04)10%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (TN-03)Charles J. "Chuck" Fleischmann (R)202-225-327190%
U.S. Representative (TN-04)Scott DesJarlais (R)202-225-683110%
U.S. SenatorBill Hagerty (R)202-224-4944 · contact formstatewide
U.S. SenatorMarsha Blackburn (R)202-224-3344 · contact formstatewide
State Senator (State Senate District 11)Bo Watson (R)90%
State Senator (State Senate District 10)Todd Gardenhire (R)10%
State Representative (State House District 27)Michele Reneau (R)90%
State Representative (State House District 31)Ron Travis (R)9.9%
State Representative (State House District 39)Iris Rudder (R)0.4%

Elected in 2024 under TN's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1190%
State Senate District 1010%

State house districtShare of ZIP residents
State House District 2790%
State House District 319.9%
State House District 390.4%

Voting precincts

7 voting precincts overlap ZIP 37377. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:37377")

ZIP 37377 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.