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Where am ILOCATED

Butler County, Pennsylvania

Butler County, Pennsylvania, has 200,169 residents (July 2025 estimate). Its county seat is Butler. It uses Eastern Time and covers 789 sq mi (2,045 km²) of land.

PhiladelphiaPittsburghAllentown
Butler County in Pennsylvania
Armstrong CountyBeaver CountyLawrence CountyButlerHomeacre-LyndoraShanor-NorthvueZelienople
Butler County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
200,169
Land area
789 sq mi (2,045 km²)
County seat or government
Butler
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$89,843 ± $2,409
Median home value
$294,200 ± $5,907
Median rent, with utilities
$1,041 ± $35
Homes lived in by their owners
76.9% ± 0.8 points
County type
County
Metro or micro area
Pittsburgh, PA metro areaCentral county
Water area
6.18 sq mi (16 km²)
State
Pennsylvania
County code (FIPS)
42019
Coordinates (central point)
40.913847, -79.918978
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Butler County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 1600139,234 people
  2. 1606633,873 people
  3. 1504427,370 people
  4. 1604619,757 people
  5. 1605715,718 people
  6. 1600215,587 people
  7. 1612715,117 people
  8. 1605910,062 people
  9. 160558,993 people
  10. 160638,256 people
  11. 160338,185 people
  12. 160375,291 people
All 37
  1. 162294,798 people
  2. 160254,793 people
  3. 160564,232 people
  4. 160234,082 people
  5. 160533,429 people
  6. 160383,292 people
  7. 163733,254 people
  8. 160513,119 people
  9. 160492,965 people
  10. 160612,564 people
  11. 160522,215 people
  12. 160341,752 people
  13. 160411,747 people
  14. 160201,169 people
  15. 160451,136 people
  16. 160501,097 people
  17. 160401,013 people
  18. 16029916 people
  19. 15086788 people
  20. 16027423 people
  21. 16030272 people
  22. 16035252 people
  23. 16048225 people
  24. 16022219 people
  25. 16024210 people

37 ZIP Code areas overlap Butler County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Butler County, largest first

  1. Cranberry Township34,094 people
  2. Butler Township16,988 people
  3. Adams Township15,282 people
  4. Buffalo Township8,070 people
  5. Slippery Rock Township8,059 people
  6. Center Township7,818 people
  7. Middlesex Township7,236 people
  8. Jackson Township5,521 people
  9. Jefferson Township5,126 people
  10. Penn Township4,923 people
  11. Summit Township4,422 people
  12. Connoquenessing Township4,184 people
All 33
  1. Winfield Township3,325 people
  2. Forward Township3,304 people
  3. Lancaster Township3,207 people
  4. Clinton Township2,878 people
  5. Oakland Township2,739 people
  6. Clearfield Township2,649 people
  7. Franklin Township2,590 people
  8. Clay Township2,243 people
  9. Muddy Creek Township2,025 people
  10. Fairview Township1,921 people
  11. Donegal Township1,596 people
  12. Concord Township1,373 people
  13. Washington Township1,368 people
  14. Worth Township1,303 people
  15. Mercer Township1,201 people
  16. Brady Township1,092 people
  17. Marion Township1,033 people
  18. Cherry Township987 people
  19. Venango Township937 people
  20. Parker Township534 people
  21. Allegheny Township505 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Pennsylvania, by county

School districts in Butler County, largest first

  1. Seneca Valley School District56,601 people
  2. Butler Area School District53,615 people
  3. Mars Area School District24,353 people
  4. Slippery Rock Area School District22,346 people
  5. Knoch School District17,454 people
  6. Freeport Area School District12,459 people
  7. Karns City Area School District9,459 people
  8. Moniteau School District8,470 people
  9. Laurel School District7,475 people
  10. Allegheny-Clarion Valley School District5,370 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Butler, Pennsylvania (city)13,212 people
  2. Homeacre-Lyndora, Pennsylvania (CDP)6,783 people
  3. Shanor-Northvue, Pennsylvania (CDP)5,125 people
  4. Meridian, Pennsylvania (CDP)3,837 people
  5. Zelienople, Pennsylvania (borough)3,827 people
  6. Slippery Rock, Pennsylvania (borough)3,495 people
  7. Seven Fields, Pennsylvania (borough)2,884 people
  8. Slippery Rock University, Pennsylvania (CDP)2,853 people
  9. Meadowood, Pennsylvania (CDP)2,644 people
  10. Oak Hills, Pennsylvania (CDP)2,513 people
  11. Evans City, Pennsylvania (borough)2,074 people
  12. Mars, Pennsylvania (borough)1,285 people
All 38
  1. Nixon, Pennsylvania (CDP)1,251 people
  2. Harmony, Pennsylvania (borough)1,232 people
  3. Saxonburg, Pennsylvania (borough)1,202 people
  4. Prospect, Pennsylvania (borough)1,157 people
  5. East Butler, Pennsylvania (borough)916 people
  6. Harrisville, Pennsylvania (borough)901 people
  7. Chicora, Pennsylvania (borough)876 people
  8. Connoquenessing, Pennsylvania (borough)687 people
  9. Unionville, Butler County, Pennsylvania (CDP)644 people
  10. Valencia, Pennsylvania (borough)550 people
  11. Callery, Pennsylvania (borough)458 people
  12. Forestville, Butler County, Pennsylvania (CDP)381 people
  13. Bruin, Pennsylvania (borough)354 people
  14. Lake Arthur Estates, Pennsylvania (CDP)333 people
  15. West Liberty, Pennsylvania (borough)327 people
  16. Eau Claire, Pennsylvania (borough)272 people
  17. West Sunbury, Pennsylvania (borough)197 people
  18. Portersville, Pennsylvania (borough)196 people

See all 38 cities, towns and communities in Butler County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lawrence County, Pennsylvania22 mi west
  2. Armstrong County, Pennsylvania25 mi east
  3. Beaver County, Pennsylvania28 mi southwest
  4. Allegheny County, Pennsylvania31 mi south
  5. Mercer County, Pennsylvania32 mi northwest
  6. Clarion County, Pennsylvania33 mi northeast
  7. Venango County, Pennsylvania35 mi north
  8. Westmoreland County, Pennsylvania48 mi southeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.