Knox County, Maine

3 cities & places have their primary county here.

Population: 40,860
Median household income: $71,903
Median home value: $290,800

Knox County is a county in Maine with a population of 40,860. 3 cities and places have their primary county here. Its median household income of $71,903 runs in line with the Maine figure of $71,773.

From 2019 to 2023, Knox County's population grew 2.8% from 39,759 to 40,860, while its median household income rose 24.5% from $57,751 to $71,903.

The largest age group is 65 to 74, 16.2% of residents. White (non-Hispanic) residents are the largest group, 94.1% of the population.

Demographics

ACS 2019–2023

Population: 40,860
Median age: 49.2 yrs
Median household income: $71,903
Median home value: $290,800
Median gross rent: $1,079
Housing units: 24,428
Homeownership rate: 78.5%
Bachelor's degree or higher: 39.1%
Unemployment rate: 3.9%

Trends

ACS 5-year · 2019–2023

Population

39,75940,860

Median household income

$57,751$71,903

Median home value

$213,400$290,800

Median gross rent

$856$1,079

Year	Population	Median household income	Median home value	Median gross rent
2019	39,759	$57,751	$213,400	$856
2020	39,809	$57,794	$209,900	$855
2021	40,519	$63,399	$224,400	$927
2022	40,729	$68,904	$260,800	$1,027
2023	40,860	$71,903	$290,800	$1,079

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 53.8%

5 to 1713.3%

18 to 246.1%

25 to 3410.4%

35 to 4411.2%

45 to 5412.6%

55 to 6415.5%

65 to 7416.2%

75 and over10.9%

	Count	Share
Under 5	1,553	3.8%
5 to 17	5,418	13.3%
18 to 24	2,477	6.1%
25 to 34	4,266	10.4%
35 to 44	4,582	11.2%
45 to 54	5,140	12.6%
55 to 64	6,352	15.5%
65 to 74	6,633	16.2%
75 and over	4,439	10.9%

Race & ethnicity

	Count	Share
White (non-Hispanic)	38,432	94.1%
Black or African American	149	0.4%
American Indian & Alaska Native	103	0.3%
Asian	142	0.3%
Native Hawaiian & Pacific Islander	10	0.0%
Some other race	33	0.1%
Two or more races	1,257	3.1%
Hispanic or Latino (any race)	734	1.8%

Educational attainment (age 25+)

No high school diploma5.7%

High school graduate30.1%

Some college or associate's25.1%

Bachelor's degree24.6%

Graduate or professional degree14.5%

	Count	Share
No high school diploma	1,792	5.7%
High school graduate	9,446	30.1%
Some college or associate's	7,891	25.1%
Bachelor's degree	7,721	24.6%
Graduate or professional degree	4,562	14.5%

Commute to work

Mean travel time to work: 20 min

Drove alone69.4%

Carpooled9.6%

Public transit0.0%

Walked4.7%

Bicycle0.1%

Worked from home14.5%

Other means1.7%

How workers get to work

	Count	Share
Drove alone	13,049	69.4%
Carpooled	1,807	9.6%
Public transit	8	0.0%
Walked	877	4.7%
Bicycle	25	0.1%
Worked from home	2,723	14.5%
Other means	311	1.7%

Travel time

	Count	Share
Under 15 min	7,220	44.9%
15 to 29 min	5,299	33.0%
30 to 44 min	1,965	12.2%
45 to 59 min	654	4.1%
60+ min	939	5.8%

Households

Average household size: 2.17
Poverty rate: 8.8% (3,424 of 39,094)

	Count	Share
Family households	10,395	57.8%
Nonfamily households	7,584	42.2%

Housing

Median year structure built: 1973

Occupancy

	Count	Share
Occupied	17,979	73.6%
Vacant	6,449	26.4%

Tenure (of occupied units)

	Count	Share
Owner-occupied	14,120	78.5%
Renter-occupied	3,859	21.5%

1-unit, detached79.3%

1-unit, attached1.9%

2 to 4 units7.7%

5 to 19 units2.8%

20 or more units2.1%

Mobile home & other6.2%

Units in structure

	Count	Share
1-unit, detached	19,376	79.3%
1-unit, attached	457	1.9%
2 to 4 units	1,887	7.7%
5 to 19 units	685	2.8%
20 or more units	514	2.1%
Mobile home & other	1,509	6.2%

Geography

County GEOID: 23013
State: Maine
Land area: 365 sq mi
Water area: 767 sq mi
Center point: 44.0420, -69.0385