Kennebec County, ME Property Tax: $2,510/yr (2026)
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The effective property tax rate in Kennebec County is 1.14% of assessed home value. On a home at the county median value of $219,900, that works out to about $2,507 per year, or $209 per month. Kennebec County is located in central Maine, and is home to approximately 125,614 residents.
About Kennebec County
Kennebec County covers approximately 867.5 square miles in Maine. The county is home to about 125,614 residents living in roughly 63,140 housing units, of which 62.2% are owner-occupied. The median household income is $65,062, and the median home was built in 1975.
Kennebec County borders Androscoggin County, Franklin County, Lincoln County, Sagadahoc County, Somerset County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Maine
Property taxes in Maine are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Maine offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Kennebec County Assessor's office to learn which exemptions apply to your property and when to file.
Kennebec County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Kennebec County, ME | 1.14% | $219,900 | $2,507 |
| Maine state average | 1.11% | — | $2,441* |
| Androscoggin County | 1.26% | $232,000 | $2,913 |
| Franklin County | 1.07% | $176,700 | $1,897 |
| Lincoln County | 0.93% | $306,200 | $2,850 |
| Sagadahoc County | 1.12% | $300,200 | $3,365 |
| Somerset County | 1.16% | $155,200 | $1,798 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Kennebec County's median home value of $219,900. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Kennebec County's property tax rate compare to the rest of Maine?
At 1.14%, Kennebec County is higher than the Maine state average of 1.11%. On a home at the county median of $219,900, that means about $2,507 per year — versus $2,441 at the state average rate, a difference of $66 per year. Compared to the national average of 1.10%, Kennebec County is above average.
What's a typical annual property tax bill in Kennebec County?
For a home at the county median value of $219,900, the annual property tax in Kennebec County is approximately $2,507 — or about $209 per month. For a home worth $329,850, expect around $3,760 per year. For a $439,800 home, approximately $5,014 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Kennebec County property tax assessment?
Property assessment appeals in Kennebec County are handled by the Kennebec County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Kennebec County?
Maine counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.14% shown here. Contact the Kennebec County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File