Pennsylvania's 1st congressional district (PA-01)
Pennsylvania's 1st congressional district (PA-01) covers parts or all of Bucks County and Montgomery County, and 70 ZIP codes (50 wholly inside it). Its 2020 population was 764,866. This is the map in force for the November 3, 2026 election.
Who represents PA-01
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (PA-01) | Brian K. Fitzpatrick (R) | 202-225-4276 |
| U.S. Senator | David McCormick (R) | 202-224-6324 · contact form |
| U.S. Senator | John Fetterman (D) | 202-224-4254 · contact form |
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in PA-01 |
|---|---|
| Bucks County | 100% |
| Montgomery County | 14% |
ZIP codes
Percentages mark ZIPs only partly in PA-01: the share of that ZIP's residents inside it.
- 18036 (15%)
- 18041 (92%)
- 18042 (<0.1%)
- 18054 (77%)
- 18055 (3.1%)
- 18070 (70%)
- 18073
- 18074 (2.6%)
- 18076
- 18077 (90%)
- 18081
- 18901
- 18902
- 18912
- 18913
- 18914
- 18915
- 18917
- 18920
- 18921
- 18923
- 18925
- 18927
- 18929
- 18930
- 18932
- 18933
- 18935
- 18936
- 18938
- 18940
- 18942
- 18944
- 18946
- 18947
- 18950
- 18951 (100%)
- 18954
- 18955
- 18960
- 18962
- 18964 (99%)
- 18966
- 18969 (99%)
- 18970
- 18972
- 18974
- 18976
- 18977
- 18980
- 19002 (14%)
- 19006 (6.6%)
- 19007
- 19020
- 19021
- 19030
- 19040 (20%)
- 19044 (75%)
- 19047
- 19053
- 19054
- 19055
- 19056
- 19057
- 19067
- 19438 (6.6%)
- 19440 (98%)
- 19446 (19%)
- 19454 (63%)
- 19504 (0.5%)
Towns
Bedminster township, Bensalem township, Bridgeton township, Bristol borough, Bristol township, Buckingham township, Chalfont borough, Doylestown borough, Doylestown township, Dublin borough, Durham township, East Greenville borough, East Rockhill township, Falls township, Franconia township, Hatfield borough, Hatfield township, Haycock township, Hilltown township, Hulmeville borough, Ivyland borough, Langhorne Manor borough, Langhorne borough, Lower Makefield township, Lower Southampton township, Marlborough township, Middletown township, Milford township, Montgomery township, Morrisville borough, New Britain borough, New Britain township, New Hope borough, Newtown borough, Newtown township, Nockamixon township, Northampton township, Penndel borough, Pennsburg borough and Perkasie borough and others.
Get this in your AI agent
Your agent can draw every precinct in PA-01, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:4201", children_level="precinct", include_districts=True)