Butler County, Pennsylvania ZIP codes
37 ZIP codes are in Butler County, plus 6 that cross in from neighboring counties. It's part of the Pittsburgh, PA metro area.
- ZIP codes
- 37
- Population in these ZIPs
- 203,113
- Avg. median income
- $93,800population-weighted
- Cities & towns
- 32
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Butler County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 16001 | Butler | 39,234 | $63,635 | $232,200 |
| 16002 | Butler | 15,587 | $90,305 | $306,800 |
| 16003 PO Box | Butler | — | — | — |
| 16016 PO Box | Boyers | — | — | — |
| 16017 PO Box | Boyers | — | — | — |
| 16018 PO Box | Boyers | — | — | — |
| 16020 | Boyers | 1,169 | $74,135 | $178,400 |
| 16021 PO Box | Branchton | — | — | — |
| 16022 | Bruin | 219 | $76,250 | $119,200 |
| 16023 | Cabot | 4,082 | $86,042 | $298,200 |
| 16024 | Callery | 210 | $72,500 | $142,500 |
| 16025 | Chicora | 4,793 | $71,722 | $221,700 |
| 16027 | Connoquenessing | 423 | $84,531 | $244,600 |
| 16029 | East Butler | 916 | $61,607 | $175,400 |
| 16030 | Eau Claire | 272 | $61,719 | $146,900 |
| 16033 | Evans City | 8,185 | $108,071 | $358,300 |
| 16034 | Fenelton | 1,752 | $88,300 | $258,500 |
| 16035 | Forestville | 252 | $53,750 | $114,700 |
| 16037 | Harmony | 5,291 | $93,077 | $391,100 |
| 16038 | Harrisville | 3,292 | $72,850 | $196,300 |
| 16039 PO Box | Herman | — | — | — |
| 16040 | Hilliards | 1,013 | $84,792 | $176,400 |
| 16041 | Karns City | 1,747 | $67,167 | $163,600 |
| 16045 | Lyndora | 1,136 | $72,600 | $104,000 |
| 16046 | Mars | 19,757 | $151,560 | $540,300 |
| 16048 | North Washington | 225 | $71,250 | $130,000 |
| 16050 | Petrolia | 1,097 | $56,708 | $160,900 |
| 16051 | Portersville | 3,119 | $88,958 | $283,200 |
| 16052 | Prospect | 2,215 | $81,739 | $299,300 |
| 16053 | Renfrew | 3,429 | $76,054 | $322,100 |
| 16055 | Sarver | 8,993 | $90,950 | $343,400 |
| 16056 | Saxonburg | 4,232 | $75,893 | $317,400 |
| 16057 | Slippery Rock | 15,718 | $58,288 | $257,800 |
| 16059 | Valencia | 10,062 | $110,828 | $442,800 |
| 16061 | West Sunbury | 2,564 | $74,464 | $245,700 |
| 16063 | Zelienople | 8,256 | $95,893 | $400,000 |
| 16066 | Cranberry Township | 33,873 | $124,189 | $473,800 |
ZIP codes partly in Butler County
These ZIP codes are mostly in a neighboring county but cover part of Butler County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 15044 | Gibsonia | Allegheny County | 27,370 | $136,723 | $468,400 |
| 15086 | Warrendale | Allegheny County | 788 | $130,688 | $387,100 |
| 16049 | Parker | Clarion County | 2,965 | $62,650 | $141,600 |
| 16127 | Grove City | Mercer County | 15,117 | $72,429 | $223,200 |
| 16229 | Freeport | Armstrong County | 4,798 | $81,731 | $222,300 |
| 16373 | Emlenton | Venango County | 3,254 | $63,047 | $149,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Butler County
Nearby counties
Frequently asked questions
How many ZIP codes are in Butler County, Pennsylvania?
37 ZIP codes are mainly in Butler County, and 6 more ZIP codes from neighboring areas reach partly into it.
What cities are in Butler County?
ZIP codes in Butler County use the city names Boyers, Branchton, Bruin, Butler, Cabot, Callery, Chicora, Connoquenessing, Cranberry Township, East Butler, Eau Claire and Evans City and others.
What metro area is Butler County in?
Butler County is part of the Pittsburgh, PA metropolitan statistical area.