Kennebec County, Maine
Located in Maine, Kennebec County has a population of 126,808 residents and a median age of 43.7 years, making it the #515 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 11.6%. The median home value is $238,200, and the median household income is $69,077, which is 8% below the national median.
Demographics
Kennebec County has a population of 126,808, making it the #515 most populous county in the US. The median age is 43.7 years, which is 12.3% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Kennebec County is $69,077, ranking #1,265 out of 3,222 counties — 8.1% below the national median. The poverty rate is 11.6% and unemployment stands at 3.9%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Kennebec County is $238,200 (-15.5% vs national). Renters pay a median of $992/mo and the homeownership rate is 73.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Kennebec County, 31.9% of adults age 25+ hold a bachelor's degree or higher, which is 5.3% below the national average, ranking #632 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Kennebec County is 76.1 years. 16.1% of adults report poor or fair health and 8.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.3% of adults in Kennebec County smoke , 33.6% are obese , and 20.9% report excessive drinking. The drug overdose death rate is 44.2 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Kennebec County is 1.5 per 100,000 and the suicide rate is 18.0 per 100,000. Motor vehicle deaths occur at a rate of 12.8 per 100,000.
Homicide Rate Trend
Families & Children
14.7% of children in Kennebec County live in poverty and the infant mortality rate is 6.1 per 1,000 live births. The teen birth rate is 11.3 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Kennebec County is 74.5%. The mean commute time is 27.2 min, which is 1.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Kennebec County voted Republican with a margin of 2.7%. The vote was 47.5% Dem / 50.2% Rep. Compared to 2020, the margin shifted 3.0 toward Republicans .
Vote Share Over Time
About Kennebec County, Maine
Kennebec County, Maine has a total population of 126,808, making it the 515th most populous county in the United States. The median age in Kennebec County is 43.7 years, which is 12.3% above the national median of 38.9 years.
The median household income in Kennebec County is $69,077, which ranks #1,265 of 3,222 counties nationwide. This is 8.1% below the national median of $75,149. The poverty rate is 11.6%, lower than the national rate of 12.6%. The unemployment rate stands at 3.9%.
The median home value in Kennebec County is $238,200, 15.5% below the national median. Renters in Kennebec County pay a median gross rent of $992 per month. The homeownership rate is 73.7%, compared to the national rate of 64.4%.
In Kennebec County, 31.9% of residents aged 25 and older hold a bachelor's degree or higher, 5.3% below the national average of 33.7%. Health insurance coverage stands at 94.2% of the population. The average commute time for workers is 27.2 min.
Kennebec County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 91.8% of the population, followed by Two or More Races (3.7%) and Hispanic or Latino (2.3%).
All data for Kennebec County, Maine comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.