ZIP code 19539: Longswamp, PA
ZIP code 19539 is in Mertztown (13% of residents), Dryville (3.2%) and Bowers (2.4%), in Berks County (96%) and Lehigh County (3.7%), Pennsylvania. 81% of its residents live outside city limits. It is in Pennsylvania's 4th congressional district (96%) and Pennsylvania's 7th congressional district (3.7%). Its state senate districts are State Senate District 24 (88%), State Senate District 11 (7.9%) and State Senate District 16 (3.7%); its state house districts are State House District 130 (88%), State House District 124 (7.9%) and State House District 187 (3.7%).
See it on the mapAll of Pennsylvania
City and county
| City or town | Share of ZIP residents |
|---|---|
| Mertztown | 13% |
| Dryville | 3.2% |
| Bowers | 2.4% |
| Maxatawny | 0.3% |
| County | Share of ZIP residents |
|---|---|
| Berks County | 96% |
| Lehigh County | 3.7% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Longswamp township | 60% |
| Rockland township | 27% |
| Maxatawny township | 7.9% |
| Lower Macungie township | 3.7% |
| District township | 0.9% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Pennsylvania's 4th congressional district (PA-04) | 96% |
| Pennsylvania's 7th congressional district (PA-07) | 3.7% |
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-04) | Madeleine Dean (D) | 202-225-4731 | 96% |
| U.S. Representative (PA-07) | Ryan Mackenzie (R) | 202-225-6411 | 3.7% |
| 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 24) | Tracy Pennycuick (R) | 215-541-2388 | 88% |
| State Senator (State Senate District 11) | Judy Schwank (Democratic) | 610-929-2151 | 7.9% |
| State Senator (State Senate District 16) | Jarrett Coleman (R) | 267-551-3744 | 3.7% |
| State Representative (State House District 130) | David Maloney (R) | 610-369-3010 | 88% |
| State Representative (State House District 124) | Jamie Barton (R) | 484-660-3721 | 7.9% |
| State Representative (State House District 187) | Gary Day (R) | 610-965-9933 | 3.7% |
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
- Mertztown laws: search for the Mertztown, Pennsylvania code of ordinances
- Dryville laws: search for the Dryville, Pennsylvania code of ordinances
- Bowers laws: search for the Bowers, Pennsylvania code of ordinances
- Berks County website: http://www.co.berks.pa.us
- Berks County laws: search for the Berks County, Pennsylvania code of ordinances
- Lehigh County website: http://www.lehighcounty.org
- Lehigh County laws: search for the Lehigh County, Pennsylvania code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 24 | 88% |
| State Senate District 11 | 7.9% |
| State Senate District 16 | 3.7% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 130 | 88% |
| State House District 124 | 7.9% |
| State House District 187 | 3.7% |
Voting precincts
9 voting precincts overlap ZIP 19539. 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:19539")
ZIP 19539 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.