Blank map of Pennsylvania by county
All 67 counties of Pennsylvania, ready to print on Letter, Tabloid, A4 or A3, or to download as PNG and SVG. Free, no sign-up.
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Mapsfera · data US Census Bureau
Pennsylvania on the map
Pennsylvania has 67 counties, the 20th most of any state (tied with 2 others). The largest is Lycoming, with 1,229 sq mi of land, and the smallest is Montour, with 130 sq mi: Lycoming is about 9 times bigger.
The state capital, Harrisburg, is in Dauphin County. The capital version marks it on the map.
Philadelphia County is the most populous, with 1,574,281 people in 2025, or 12% of the state. The least populous is Cameron, with 4,211. Since 2020, Pike has grown the fastest (+7.3%) and Cameron has lost the most (−7.3%).
What each county borders
Lycoming borders the most counties in the state: 9 (Bradford, Clinton, Columbia, Montour, Northumberland, Potter, Sullivan, Tioga, and Union).
29 counties touch another state. 9 border Maryland: Adams, Bedford, Chester, Fayette, Franklin, Fulton, Lancaster, Somerset and 1 more. 9 border New York: Bradford, Erie, McKean, Pike, Potter, Susquehanna, Tioga, Warren and 1 more. 6 border New Jersey: Bucks, Delaware, Monroe, Northampton, Philadelphia, and Pike. 5 border Ohio: Beaver, Crawford, Erie, Lawrence, and Mercer. 4 border West Virginia: Beaver, Fayette, Greene, and Washington. 2 border Delaware: Chester and Delaware.
1 county is on the shore of the Great Lakes: Erie. 38 counties are fully inland, with no coast and no border with another state or country.
Number key
Numbers follow alphabetical order, from 1 (Adams) to 67 (York). Juniata is too small for a number on Letter or A4 but keeps its number in the table; Tabloid and A3 fit more. Area is land area, without lakes or sea, and population is the Census estimate for July 1, 2025; “Borders” counts neighboring counties in the same state.
Show the whole table (67 rows)
| No. | County | Land area | Population (2025) | Borders |
|---|---|---|---|---|
| 1 | Adams | 519 sq mi | 107,594 | 3 |
| 2 | Allegheny | 730 sq mi | 1,225,035 | 4 |
| 3 | Armstrong | 653 sq mi | 63,698 | 5 |
| 4 | Beaver | 435 sq mi | 166,032 | 4 |
| 5 | Bedford | 1,012 sq mi | 47,480 | 5 |
| 6 | Berks | 856 sq mi | 440,072 | 6 |
| 7 | Blair | 525 sq mi | 119,541 | 5 |
| 8 | Bradford | 1,147 sq mi | 59,600 | 5 |
| 9 | Bucks | 604 sq mi | 647,828 | 4 |
| 10 | Butler | 790 sq mi | 200,169 | 7 |
| 11 | Cambria | 688 sq mi | 128,968 | 6 |
| 12 | Cameron | 396 sq mi | 4,211 | 5 |
| 13 | Carbon | 381 sq mi | 65,868 | 5 |
| 14 | Centre | 1,107 sq mi | 157,393 | 6 |
| 15 | Chester | 751 sq mi | 557,116 | 4 |
| 16 | Clarion | 601 sq mi | 36,680 | 5 |
| 17 | Clearfield | 1,145 sq mi | 78,100 | 8 |
| 18 | Clinton | 890 sq mi | 37,870 | 6 |
| 19 | Columbia | 483 sq mi | 66,193 | 6 |
| 20 | Crawford | 1,012 sq mi | 81,792 | 4 |
| 21 | Cumberland | 545 sq mi | 277,270 | 5 |
| 22 | Dauphin | 525 sq mi | 293,351 | 7 |
| 23 | Delaware | 184 sq mi | 580,937 | 3 |
| 24 | Elk | 827 sq mi | 29,926 | 5 |
| 25 | Erie | 799 sq mi | 265,832 | 2 |
| 26 | Fayette | 791 sq mi | 123,021 | 4 |
| 27 | Forest | 427 sq mi | 6,614 | 5 |
| 28 | Franklin | 772 sq mi | 160,652 | 6 |
| 29 | Fulton | 438 sq mi | 14,483 | 3 |
| 30 | Greene | 576 sq mi | 33,885 | 2 |
| 31 | Huntingdon | 875 sq mi | 43,001 | 7 |
| 32 | Indiana | 827 sq mi | 82,878 | 5 |
| 33 | Jefferson | 652 sq mi | 43,255 | 6 |
| 34 | Juniata | 391 sq mi | 23,403 | 6 |
| 35 | Lackawanna | 459 sq mi | 216,502 | 5 |
| 36 | Lancaster | 944 sq mi | 563,159 | 5 |
| 37 | Lawrence | 357 sq mi | 83,911 | 3 |
| 38 | Lebanon | 362 sq mi | 146,380 | 4 |
| 39 | Lehigh | 345 sq mi | 384,383 | 6 |
| 40 | Luzerne | 890 sq mi | 332,126 | 7 |
| 41 | Lycoming | 1,229 sq mi | 112,587 | 9 |
| 42 | McKean | 980 sq mi | 38,984 | 4 |
| 43 | Mercer | 673 sq mi | 107,860 | 4 |
| 44 | Mifflin | 411 sq mi | 46,127 | 5 |
| 45 | Monroe | 608 sq mi | 167,179 | 6 |
| 46 | Montgomery | 483 sq mi | 877,643 | 6 |
| 47 | Montour | 130 sq mi | 17,868 | 3 |
| 48 | Northampton | 370 sq mi | 324,411 | 4 |
| 49 | Northumberland | 458 sq mi | 89,920 | 8 |
| 50 | Perry | 551 sq mi | 46,806 | 4 |
| 51 | Philadelphia | 134 sq mi | 1,574,281 | 3 |
| 52 | Pike | 545 sq mi | 62,808 | 2 |
| 53 | Potter | 1,081 sq mi | 15,897 | 5 |
| 54 | Schuylkill | 779 sq mi | 145,085 | 8 |
| 55 | Snyder | 329 sq mi | 39,655 | 4 |
| 56 | Somerset | 1,075 sq mi | 72,004 | 4 |
| 57 | Sullivan | 450 sq mi | 5,856 | 5 |
| 58 | Susquehanna | 823 sq mi | 38,237 | 4 |
| 59 | Tioga | 1,134 sq mi | 40,502 | 3 |
| 60 | Union | 316 sq mi | 42,313 | 6 |
| 61 | Venango | 674 sq mi | 49,346 | 6 |
| 62 | Warren | 884 sq mi | 37,038 | 5 |
| 63 | Washington | 857 sq mi | 210,802 | 5 |
| 64 | Wayne | 726 sq mi | 51,703 | 4 |
| 65 | Westmoreland | 1,028 sq mi | 349,324 | 7 |
| 66 | Wyoming | 397 sq mi | 25,790 | 5 |
| 67 | York | 904 sq mi | 473,197 | 4 |
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Frequently asked questions
How many counties does Pennsylvania have?
67 counties. That’s the 20th most of any state.
What is the largest county in Pennsylvania?
Lycoming, with 1,229 sq mi of land. The smallest is Montour, with 130 sq mi.
What is the most populous county in Pennsylvania?
Philadelphia County, with an estimated 1,574,281 people in 2025, or 12% of the state.
What county is Harrisburg in?
The state capital, Harrisburg, is in Dauphin County.
Can I use it in class?
Yes, it’s free. Print it, copy it and hand it out as many times as you like. If you post it on a blog or a class website, credit “Mapsfera · data US Census Bureau”.
How do I print it on US Letter paper?
Choose Letter in “Paper size” and click “Download PDF”. In the print window, pick Letter paper and 100% scale (“Actual size”). For a bigger map, choose Tabloid (11 × 17 in) or A3.
What order are the numbers in?
Alphabetical, from 1 to the last one. That makes the key easy to follow when you grade, and it’s the same key the worksheet’s answer page uses.
Sources
- Boundaries: U.S. Census Bureau, Cartographic Boundary Files 2025, counties at 1:500,000 (public domain)
- Land and water area: U.S. Census Bureau (TIGER/Line and 2025 Gazetteer); population: Vintage 2025 estimates (July 1, 2025)
- State capital: Natural Earth, Populated Places (public domain); which counties it spans, Census places
- Neighbors, coastline and borders: calculated from those boundaries (and checked against the Census county adjacency file)