Aroostook County vs Knox County

A side-by-side comparison of Aroostook County and Knox County: population, income, housing, and more.

Aroostook County and Knox County are counties in Maine. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Aroostook County has the higher population (67,227 vs 40,860 in Knox County). Knox County has the higher median household income ($71,903 vs $54,254 in Aroostook County). Knox County has the higher median home value ($290,800 vs $131,700 in Aroostook County).

Population, income & housing

	Aroostook County	Knox County
Population	67,227	40,860
Median age	48.4 yrs	49.2 yrs
Median household income	$54,254	$71,903
Median home value	$131,700	$290,800
Median gross rent	$736	$1,079
Housing units	38,444	24,428
Homeownership rate	74.4%	78.5%
Bachelor's degree or higher	22.4%	39.1%
Unemployment rate	5.4%	3.9%

Trends (ACS 5-year, 2019–2023)

	Aroostook County	Knox County
Population	67,809 → 67,227 (-0.9%)	39,759 → 40,860 (+2.8%)
Median household income	$41,123 → $54,254 (+31.9%)	$57,751 → $71,903 (+24.5%)
Median home value	$99,600 → $131,700 (+32.2%)	$213,400 → $290,800 (+36.3%)
Median gross rent	$574 → $736 (+28.2%)	$856 → $1,079 (+26.1%)

Aroostook County

Population

67,80967,227

Median household income

$41,123$54,254

Median home value

$99,600$131,700

Median gross rent

$574$736

Knox County

Population

39,75940,860

Median household income

$57,751$71,903

Median home value

$213,400$290,800

Median gross rent

$856$1,079

Age & race/ethnicity

Age distribution (share)

	Aroostook County	Knox County
Under 5	4.8%	3.8%
5 to 17	13.9%	13.3%
18 to 24	6.6%	6.1%
25 to 34	9.9%	10.4%
35 to 44	10.7%	11.2%
45 to 54	12.5%	12.6%
55 to 64	16.1%	15.5%
65 to 74	14.8%	16.2%
75 and over	10.6%	10.9%

Race & ethnicity (share)

	Aroostook County	Knox County
White (non-Hispanic)	92.9%	94.1%
Black or African American	0.7%	0.4%
American Indian & Alaska Native	1.3%	0.3%
Asian	0.4%	0.3%
Native Hawaiian & Pacific Islander	0.1%	0.0%
Some other race	0.1%	0.1%
Two or more races	2.9%	3.1%
Hispanic or Latino	1.6%	1.8%

Educational attainment (age 25+)

Share of adults 25+

	Aroostook County	Knox County
No high school diploma	8.8%	5.7%
High school graduate	38.8%	30.1%
Some college or associate's	30.0%	25.1%
Bachelor's degree	15.5%	24.6%
Graduate or professional degree	6.9%	14.5%

Commute to work

How workers get to work (share)

	Aroostook County	Knox County
Drove alone	78.8%	69.4%
Carpooled	9.1%	9.6%
Public transit	0.0%	0.0%
Walked	2.3%	4.7%
Bicycle	0.1%	0.1%
Worked from home	8.1%	14.5%
Other means	1.6%	1.7%

Housing

Units in structure (share)

	Aroostook County	Knox County
1-unit, detached	74.0%	79.3%
1-unit, attached	0.7%	1.9%
2 to 4 units	9.8%	7.7%
5 to 19 units	4.2%	2.8%
20 or more units	2.4%	2.1%
Mobile home & other	8.8%	6.2%

Poverty & households

	Aroostook County	Knox County
Poverty rate	14.4%	8.8%
Average household size	2.20	2.17
Mean commute (minutes)	19	20
Median year structure built	1971	1973