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Market insights · Maine

Penobscot County, ME: growth, migration and housing

Penobscot County has 157,967 residents, up 3.8% since 2020 (+0.4% in the last year). In 2022–2023, 3,611 households moved in and 3,318 moved out (+293 net), bringing in a net $11.6M of income. Median household income is $66,356, the median home $214,100 and median rent $1,041 a month.

Population (2025)157,967
5-year growth+3.8%
1-year growth+0.4%
Net households moving in+293
Per 1,000 residents+1.9
Net income moving in+$11.6M
Median household income$66,356
Median home value$214,100
Median rent$1,041/mo
Rent as share of income19%

In Maine: 7th of 16 counties for 5-year population growth · 13th of 16 counties for net in-migration (per resident) · 10th of 16 counties for median household income · 11th of 16 counties for median home value.

Where new residents came from

Top counties by households (tax returns) moving to Penobscot County, 2022–2023 (IRS).

FromHouseholds (tax returns)Their income (AGI)
Hancock County, ME294$16.4M
Waldo County, ME208$8.6M
Somerset County, ME190$8.7M
Cumberland County, ME181$10.8M
Kennebec County, ME171$7.8M
Aroostook County, ME164$7.3M
Piscataquis County, ME148$5.7M
York County, ME112$4.3M

Where leavers went

Top counties by households leaving Penobscot County, 2022–2023 (IRS).

ToHouseholds (tax returns)Their income (AGI)
Hancock County, ME254$16.1M
Cumberland County, ME241$16.3M
Somerset County, ME189$7.5M
Kennebec County, ME187$9.0M
Waldo County, ME184$8.9M
Aroostook County, ME139$5.6M
Piscataquis County, ME134$5.3M
York County, ME110$4.9M

BizyFi in Penobscot County

Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Maine companies.

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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.