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| County : | Butler County |
| State : | Pennsylvania (PA) |
| Land Area : | 788.60 sq mi |
| Water Area : | 6.15 sq mi |
| Latitude : | 40.9138336 |
| Longitude : | -79.9189599 |
| Population (2010): | 183,862 |
| Population Estimate (2012) : | 183,946 |
| Population Density : | 233.15/sq mi |
| Housing Units (2012) : | 78,167 |
| Median Household Income (2012) : | $58,226 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $72,826 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $167,100 (Pennsylvania : $164,900, USA : $181,400) |
Butler County Cities / Towns
| Bruin Borough (524) | Butler City (13,757) | Callery Borough (394) |
| Cherry Valley Borough (66) | Chicora Borough (1,043) | Connoquenessing Borough (528) |
| East Butler Borough (732) | Eau Claire Borough (316) | Evans City Borough (1,833) |
| Fairview Borough (198) | Fernway (12,414) | Fox Run (3,282) |
| Harmony Borough (890) | Harrisville Borough (897) | Homeacre-lyndora (6,906) |
| Karns City Borough (209) | Lake Arthur Estates (594) | Mars Borough (1,699) |
| Meadowood (2,693) | Meridian (3,881) | Nixon (1,373) |
| Oak Hills (2,333) | Petrolia Borough (212) | Portersville Borough (235) |
| Prospect Borough (1,169) | Saxonburg Borough (1,525) | Seven Fields Borough (2,887) |
| Shanor-northvue (5,051) | Slippery Rock Borough (3,625) | Slippery Rock University (1,898) |
| Unionville (962) | Valencia Borough (551) | West Liberty Borough (343) |
| West Sunbury Borough (192) | Zelienople Borough (3,812) |
Butler County Zip Codes
| 15044 (27,049) | 16001 (40,371) | 16002 (15,877) |
| 16020 (1,150) | 16022 (368) | 16023 (4,169) |
| 16024 (209) | 16025 (5,564) | 16027 (306) |
| 16029 (705) | 16030 (316) | 16033 (6,165) |
| 16034 (2,054) | 16035 (122) | 16037 (4,589) |
| 16038 (3,517) | 16040 (975) | 16041 (1,888) |
| 16045 (1,195) | 16046 (14,396) | 16048 (139) |
| 16049 (3,241) | 16050 (1,546) | 16051 (3,043) |
| 16052 (2,447) | 16053 (4,020) | 16055 (8,486) |
| 16056 (4,791) | 16057 (13,909) | 16059 (7,738) |
| 16061 (2,761) | 16063 (6,559) | 16066 (28,060) |
| 16127 (16,145) | 16229 (4,997) | 16373 (3,510) |