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| County : | Lehigh County |
| State : | Pennsylvania (PA) |
| Land Area : | 345.16 sq mi |
| Water Area : | 3.07 sq mi |
| Latitude : | 40.6142409 |
| Longitude : | -75.5906269 |
| Population (2010): | 349,497 |
| Population Estimate (2012) : | 350,165 |
| Population Density : | 1,012.55/sq mi |
| Housing Units (2012) : | 142,613 |
| Median Household Income (2012) : | $54,645 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $67,362 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $203,000 (Pennsylvania : $164,900, USA : $181,400) |
Lehigh County Cities / Towns
| Alburtis Borough (2,361) | Allentown City (118,032) | Ancient Oaks (6,661) |
| Bethlehem City (74,982) | Breinigsville (4,138) | Catasauqua Borough (6,436) |
| Cementon (1,538) | Cetronia (2,115) | Coopersburg Borough (2,386) |
| Coplay Borough (3,192) | Desales University (953) | Dorneyville (4,406) |
| Egypt (2,391) | Emmaus Borough (11,211) | Fountain Hill Borough (4,597) |
| Fullerton (14,925) | Hokendauqua (3,378) | Laurys Station (1,243) |
| Macungie Borough (3,074) | New Tripoli (898) | Schnecksville (2,935) |
| Slatedale (455) | Slatington Borough (4,232) | Stiles (1,113) |
| Trexlertown (1,988) | Wescosville (5,872) |
Lehigh County Zip Codes
| 18011 (5,450) | 18015 (32,832) | 18017 (37,549) |
| 18018 (32,413) | 18031 (7,528) | 18032 (9,285) |
| 18034 (8,256) | 18036 (12,822) | 18037 (7,070) |
| 18041 (5,424) | 18046 (64) | 18049 (17,341) |
| 18051 (3,327) | 18052 (26,902) | 18053 (2,375) |
| 18059 (1,228) | 18062 (24,351) | 18066 (6,005) |
| 18068 (42) | 18069 (8,017) | 18078 (7,074) |
| 18079 (436) | 18080 (11,456) | 18087 (738) |
| 18092 (3,223) | 18101 (3,897) | 18102 (49,779) |
| 18103 (45,336) | 18104 (43,236) | 18105 (12) |
| 18106 (6,889) | 18109 (16,932) | 18951 (34,651) |
| 19529 (3,131) | 19530 (16,432) | 19539 (4,597) |