Zip Codes in Penobscot County, Maine

Penobscot County, located in the state of Maine, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to Penobscot County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
04487
04444
04434
04417
04469
04765
04733
04493
04460
04932
04928
04455
04459
04777
04410
04474
04930
04450
04495
04412
04435
04473
04457
04953
04419
04488
04411
04401
04453
04462
04489
04933
04422
04402
04468
04461
04939
04430
04451
04449
04497
04428
04456
04969
04475
04418
04429
04921
04427
04448

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Penobscot County Information

Use this tool to find your area details by using zip code.

ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in Penobscot County County?

There are approximately 50 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Penobscot County overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.