| County : | Penobscot County |
| State : | Maine (ME) |
| Land Area : | 3,397.34 sq mi |
| Water Area : | 159.72 sq mi |
| Latitude : | 45.3906022 |
| Longitude : | -68.6574869 |
| Population (2010): | 153,923 |
| Population Estimate (2012) : | 153,742 |
| Population Density : | 45.31/sq mi |
| Housing Units (2012) : | 73,860 |
| Median Household Income (2012) : | $43,382 (Maine : $48,219, USA : $53,046) |
| Median Family Income (2012) : | $55,827 (Maine : $60,408, USA : $64,585) |
| Median House Price (2012) : | $138,000 (Maine : $175,600, USA : $181,400) |
Penobscot County Cities / Towns
| Bangor City (33,039) | Brewer City (9,482) | Dexter (2,158) |
| East Millinocket (1,567) | Hampden (4,343) | Howland (1,096) |
| Lincoln (2,884) | Milford (2,233) | Millinocket (4,466) |
| Newport (1,776) | Old Town City (7,840) | Orono (9,474) |
Penobscot County Zip Codes
| 04401 (44,899) | 04410 (1,290) | 04411 (1,492) |
| 04412 (9,482) | 04417 (370) | 04418 (1,771) |
| 04419 (2,794) | 04422 (1,409) | 04427 (2,858) |
| 04428 (3,146) | 04429 (4,717) | 04430 (1,728) |
| 04434 (1,246) | 04435 (1,092) | 04444 (8,824) |
| 04448 (1,431) | 04449 (1,489) | 04450 (1,368) |
| 04451 (259) | 04453 (779) | 04455 (923) |
| 04456 (2,851) | 04457 (5,948) | 04459 (773) |
| 04460 (1,419) | 04461 (3,070) | 04462 (4,835) |
| 04468 (9,521) | 04469 (2,702) | 04473 (7,660) |
| 04474 (3,733) | 04475 (418) | 04487 (964) |
| 04488 (1,202) | 04489 (197) | 04493 (1,967) |
| 04495 (407) | 04497 (389) | 04733 (221) |
| 04765 (1,262) | 04777 (422) | 04928 (2,198) |
| 04930 (4,295) | 04932 (1,181) | 04933 (65) |
| 04939 (1,105) | 04953 (3,228) | 04969 (1,362) |