ZIP code 38401: Columbia, TN
ZIP code 38401 is in Columbia (66% of residents) and Mount Pleasant (1.2%), in Maury County (99%), Marshall County (0.8%) and Williamson County (0.2%), Tennessee. 33% of its residents live outside city limits. It is in Tennessee's 5th congressional district (54%) and Tennessee's 9th congressional district (46%). Its state senate districts are State Senate District 28 (100%) and State Senate District 27 (0.2%); its state house districts are State House District 64 (78%), State House District 71 (21%), State House District 92 (0.8%) and State House District 65 (0.2%).
See it on the mapAll of Tennessee
City and county
| City or town | Share of ZIP residents |
|---|---|
| Columbia | 66% |
| Mount Pleasant | 1.2% |
| County | Share of ZIP residents |
|---|---|
| Maury County | 99% |
| Marshall County | 0.8% |
| Williamson County | 0.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 1 | 15% |
| District 4 | 15% |
| District 3 | 14% |
| District 2 | 14% |
| District 6 | 10% |
| District 7 | 8.9% |
| District 9 | 7.5% |
| District 8 | 6.5% |
| District 5 | 5.3% |
| District 10 | 2.8% |
| District 2 | 0.7% |
| District 1 | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Tennessee's 5th congressional district (TN-05) | 54% |
| Tennessee's 9th congressional district (TN-09) | 46% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (TN-05) | Andrew Ogles (R) | 202-225-4311 | 54% |
| U.S. Representative (TN-09) | Steve Cohen (D) | 202-225-3265 | 46% |
| U.S. Senator | Bill Hagerty (R) | 202-224-4944 · contact form | statewide |
| U.S. Senator | Marsha Blackburn (R) | 202-224-3344 · contact form | statewide |
| State Senator (State Senate District 28) | Joey Hensley (R) | 100% | |
| State Senator (State Senate District 27) | Jack Johnson (R) | 0.2% | |
| State Representative (State House District 64) | Scott Cepicky (R) | 78% | |
| State Representative (State House District 71) | Kip Capley (R) | 21% | |
| State Representative (State House District 92) | Todd Warner (R) | 0.8% | |
| State Representative (State House District 65) | Lee Reeves (R) | 0.2% |
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
- Columbia laws: search for the Columbia, Tennessee code of ordinances
- Mount Pleasant website: http://www.mtpleasant-tn.com/
- Mount Pleasant laws: search for the Mount Pleasant, Tennessee code of ordinances
- Maury County website: http://www.maurycounty-tn.gov
- Maury County laws: search for the Maury County, Tennessee code of ordinances
- Marshall County website: https://marshallcountytn.com/
- Marshall County laws: search for the Marshall County, Tennessee code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 28 | 100% |
| State Senate District 27 | 0.2% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 64 | 78% |
| State House District 71 | 21% |
| State House District 92 | 0.8% |
| State House District 65 | 0.2% |
Voting precincts
22 voting precincts overlap ZIP 38401. 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:38401")
ZIP 38401 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.