ZIP code 16059: Middlesex, PA
ZIP code 16059 is in Valencia (5.6% of residents), in Butler County (97%) and Allegheny County (3.0%), Pennsylvania. 94% of its residents live outside city limits. It is in Pennsylvania's 16th congressional district (97%) and Pennsylvania's 17th congressional district (3.0%). Its state senate districts are State Senate District 47 (94%), State Senate District 38 (3.0%) and State Senate District 21 (2.8%); its state house districts are State House District 8 (68%), State House District 12 (27%), State House District 28 (3.0%) and State House District 11 (2.2%).
See it on the mapAll of Pennsylvania
City and county
| City or town | Share of ZIP residents |
|---|---|
| Valencia | 5.6% |
| County | Share of ZIP residents |
|---|---|
| Butler County | 97% |
| Allegheny County | 3.0% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Middlesex township | 68% |
| Adams township | 21% |
| Valencia borough | 5.6% |
| Richland township | 2.7% |
| Clinton township | 2.2% |
| Penn township | 0.6% |
| Pine township | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Pennsylvania's 16th congressional district (PA-16) | 97% |
| Pennsylvania's 17th congressional district (PA-17) | 3.0% |
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 (PA-16) | Mike Kelly (R) | 202-225-5406 | 97% |
| U.S. Representative (PA-17) | Christopher R. Deluzio (D) | 202-225-2301 | 3.0% |
| U.S. Senator | David McCormick (R) | 202-224-6324 · contact form | statewide |
| U.S. Senator | John Fetterman (D) | 202-224-4254 · contact form | statewide |
| State Senator (State Senate District 47) | Elder Vogel (R) | 878-978-2575 | 94% |
| State Senator (State Senate District 38) | Lindsey Williams (Democratic) | 412-364-0469 | 3.0% |
| State Senator (State Senate District 21) | Scott Hutchinson (R) | 814-677-6345 | 2.8% |
| State Representative (State House District 8) | Aaron Bernstine (R) | 724-847-5291 | 68% |
| State Representative (State House District 12) | Brandon Dukes (Democratic) | 724-824-8671 | 27% |
| State Representative (State House District 28) | Jeremy Shaffer (R) | 412-369-2230 | 3.0% |
| State Representative (State House District 11) | Marci Mustello (R) | 724-283-5852 | 2.2% |
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
- Valencia laws: search for the Valencia, Pennsylvania code of ordinances
- Butler County website: http://www.co.butler.pa.us
- Butler County laws: search for the Butler County, Pennsylvania code of ordinances
- Allegheny County website: https://www.alleghenycounty.us/Home
- Allegheny County laws: search for the Allegheny County, Pennsylvania code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 47 | 94% |
| State Senate District 38 | 3.0% |
| State Senate District 21 | 2.8% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 8 | 68% |
| State House District 12 | 27% |
| State House District 28 | 3.0% |
| State House District 11 | 2.2% |
Voting precincts
11 voting precincts overlap ZIP 16059. 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:16059")
ZIP 16059 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.