ZIP code 40059: Louisville/Jefferson County metro government (balance), KY
ZIP code 40059 is in Louisville/Jefferson County metro government (balance) (36% of residents), Prospect (23%) and River Bluff (2.1%), in Jefferson County (58%) and Oldham County (42%), Kentucky. 40% of its residents live outside city limits. It is in Kentucky's 3rd congressional district (58%) and Kentucky's 4th congressional district (42%). Its state senate districts are State Senate District 6 (81%), State Senate District 36 (18%) and State Senate District 26 (1.0%); its state house districts are State House District 48 (58%) and State House District 59 (42%).
See it on the mapAll of Kentucky
City and county
| City or town | Share of ZIP residents |
|---|---|
| Louisville/Jefferson County metro government (balance) | 36% |
| Prospect | 23% |
| River Bluff | 2.1% |
| County | Share of ZIP residents |
|---|---|
| Jefferson County | 58% |
| Oldham County | 42% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Northeast Jefferson CCD | 46% |
| Pewee Valley CCD | 42% |
| East Jefferson CCD | 12% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Kentucky's 3rd congressional district (KY-03) | 58% |
| Kentucky's 4th congressional district (KY-04) | 42% |
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 (KY-03) | Morgan McGarvey (D) | 202-225-5401 | 58% |
| U.S. Representative (KY-04) | Thomas Massie (R) | 202-225-3465 | 42% |
| U.S. Senator | Mitch McConnell (R) | 202-224-2541 · contact form | statewide |
| U.S. Senator | Rand Paul (R) | 202-224-4343 · contact form | statewide |
| State Senator (State Senate District 6) | Lindsey Tichenor (R) | 81% | |
| State Senator (State Senate District 36) | Julie Adams (R) | 18% | |
| State Senator (State Senate District 26) | Karen Berg (Democratic) | 1.0% | |
| State Representative (State House District 48) | Ken Fleming (R) | 58% | |
| State Representative (State House District 59) | David Osborne (R) | 42% |
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
- Louisville/Jefferson County metro government (balance) laws: search for the Louisville/Jefferson County metro government (balance), Kentucky code of ordinances
- Prospect website: http://prospectky.us
- Prospect laws: search for the Prospect, Kentucky code of ordinances
- River Bluff laws: search for the River Bluff, Kentucky code of ordinances
- Jefferson County website: http://www.louisvilleky.gov
- Jefferson County laws: search for the Jefferson County, Kentucky code of ordinances
- Oldham County website: https://www.oldhamcountyky.gov/
- Oldham County laws: search for the Oldham County, Kentucky code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 6 | 81% |
| State Senate District 36 | 18% |
| State Senate District 26 | 1.0% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 48 | 58% |
| State House District 59 | 42% |
Voting precincts
15 voting precincts overlap ZIP 40059. 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:40059")
ZIP 40059 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.