Pennsylvania / PA-13
Pennsylvania District 13
Score
Irregularity score 19 Very compactLess compact than 13% of other congressional districts.
374th least compact of 429 nationally, 15th of 17 in Pennsylvania.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.39at least as compact as 85% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.67at least as compact as 88% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.83at least as compact as 70% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
The state's edge
21% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Altoona cityall 43,963 residents
- Chambersburg boroughall 21,903 residents
- Johnstown cityall 18,411 residents
- Waynesboro boroughall 10,951 residents
- Lewistown boroughall 8,579 residents
- Gettysburg boroughall 7,106 residents
- Huntingdon boroughall 6,827 residents
- Hollidaysburg boroughall 5,641 residents
- Tyrone boroughall 5,480 residents
- Shippensburg boroughall 5,478 residents
And 261 smaller places. 56% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
216 ZIP codes have residents in this district. 33 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
Show all 216 ZIP codes
- 15521
- 15522
- 15531 (3%)
- 15533
- 15534 (99%)
- 15535
- 15536
- 15537
- 15539
- 15545 (80%)
- 15550
- 15554
- 15559 (99%)
- 15714 (86%)
- 15722
- 15724 (8%)
- 15737
- 15738
- 15760
- 15762
- 15773
- 15775
- 15901
- 15902
- 15904
- 15905 (96%)
- 15906
- 15909
- 15921
- 15922
- 15925
- 15927
- 15930
- 15931
- 15934
- 15935 (7%)
- 15938
- 15940
- 15942
- 15943
- 15945
- 15946
- 15948
- 15951
- 15952
- 15955
- 15956
- 15957 (39%)
- 15958
- 15960
- 15961 (56%)
- 15962
- 15963 (26%)
- 16601
- 16602
- 16611
- 16613
- 16617
- 16619
- 16621
- 16622
- 16623
- 16624
- 16625
- 16627 (7%)
- 16630
- 16631
- 16633
- 16634
- 16635
- 16636
- 16637
- 16638
- 16639 (86%)
- 16640
- 16641
- 16646 (99%)
- 16647
- 16648
- 16650
- 16652
- 16654
- 16655
- 16657
- 16659
- 16662
- 16664
- 16665
- 16667
- 16668
- 16669
- 16670
- 16672
- 16673
- 16674
- 16675
- 16678
- 16679
- 16682
- 16683
- 16684
- 16685
- 16686 (98%)
- 16689
- 16691
- 16693
- 16694
- 16695
- 16865 (6%)
- 16877 (65%)
- 17002
- 17004
- 17006
- 17009
- 17014
- 17015 (1%)
- 17019 (1%)
- 17020 (99%)
- 17021
- 17024
- 17029
- 17035
- 17037
- 17040
- 17044
- 17045 (91%)
- 17047
- 17049
- 17051
- 17052
- 17053 (98%)
- 17054
- 17056
- 17058
- 17059
- 17060
- 17062
- 17063 (99%)
- 17066
- 17068
- 17069
- 17071
- 17074
- 17075
- 17076
- 17082
- 17084
- 17086 (61%)
- 17090
- 17094
- 17099
- 17201
- 17202
- 17210
- 17211
- 17212
- 17213
- 17214
- 17215
- 17217
- 17219
- 17220
- 17221
- 17222
- 17223
- 17224
- 17225
- 17228
- 17229
- 17232
- 17233
- 17235
- 17236
- 17237
- 17238
- 17239
- 17240
- 17241 (45%)
- 17243
- 17244
- 17246
- 17247
- 17249
- 17250
- 17251
- 17252
- 17253
- 17254
- 17255
- 17257 (96%)
- 17260
- 17262
- 17263
- 17264
- 17265
- 17267
- 17268
- 17271
- 17301 (70%)
- 17303
- 17304
- 17306
- 17307
- 17316 (79%)
- 17320
- 17324 (40%)
- 17325
- 17331 (20%)
- 17340
- 17343
- 17344
- 17350
- 17353
- 17372 (97%)
- 17841 (54%)
- 17853 (13%)
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
Shares of the votes for the two of them; other candidates are left out. Pennsylvania used the same lines in 2024, so this is added up from precinct results. A precinct split between districts is divided by its House votes, so the figures are close estimates. Where the votes come from
U.S. House
John Joyce, Republican
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Pennsylvania Department of State, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Pennsylvania's senators
- John Fetterman, Democrat
- David McCormick, Republican
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in Pennsylvania
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
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