ZIP code 37604: Johnson City, TN
ZIP code 37604 is in Johnson City (91% of residents), in Washington County (99%) and Carter County (0.8%), Tennessee. 8.8% of its residents live outside city limits. It is in Tennessee's 1st congressional district. Its state senate district is State Senate District 3; its state house districts are State House District 7 (68%), State House District 6 (32%) and State House District 4 (0.8%).
See it on the mapAll of Tennessee
City and county
| City or town | Share of ZIP residents |
|---|---|
| Johnson City | 91% |
| County | Share of ZIP residents |
|---|---|
| Washington County | 99% |
| Carter County | 0.8% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 7 | 22% |
| District 13 | 21% |
| District 12 | 18% |
| District 14 | 16% |
| District 11 | 14% |
| District 9 | 5.5% |
| District 8 | 3.2% |
| District 7 | 0.6% |
| District 5 | 0.2% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Tennessee's 1st congressional district (TN-01) | 100% |
Members of Congress
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (TN-01) | Diana Harshbarger (R) | 202-225-6356 |
| U.S. Senator | Bill Hagerty (R) | 202-224-4944 · contact form |
| U.S. Senator | Marsha Blackburn (R) | 202-224-3344 · contact form |
Elected in 2024 under TN's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 3 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 7 | 68% |
| State House District 6 | 32% |
| State House District 4 | 0.8% |
Voting precincts
11 voting precincts overlap ZIP 37604. 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:37604")
ZIP 37604 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.