COUNTY · 2000 CENSUS

Knox County

Maine · 39,618 residents · 365.146 sq mi

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The short version

Knox County has lower-than-average household income, with a median household income of $36,774. Population has held roughly steady since 1990. Median home value is $110,200. With a median age of 41.4, the population is older than the US median of 35.2.

At a glance

Lower income

below the US median

US median: $42,589

Older

median age 41.4

US median: 35.2

Average education

26% hold a bachelor's degree

US average: 24%

More affordable

home values down 9%, inflation adjusted

US median home: $120,530

Section 01

Population & growth

Total population

39,618

+9%since 1990

from 36,310 in 1990

1990 – 2025

Population density

108 / sq mi

+9%since 1990

from 99 / sq mi in 1990

US average: 242

Median age

41.4

+12%since 1990

from 37.0 in 1990

US average: 35.2

Population, 1990 – 2024

202441K

Section 02

Income & economy

Median household income

$36,774

+10%inflation adjusted, since 1990

from $25,405 in 1990

US average: $42,589

1990 – 2024

Per capita income

$19,981

+54%since 1990

from $12,949 in 1990

US average: $21,522

Poverty rate

10.1%

−1.8 ptssince 1990

from 11.9% in 1990

US average: 12.4%

Section 03

Housing

Median home value

$110,200

−9%inflation adjusted, since 1990

from $92,300 in 1990

US average: $120,530

1990 – 2024

Median gross rent

$517

−2%inflation adjusted, since 1990

from $399 in 1990

US average: $602

Owner-occupied

74.0%

+0.3 ptssince 1990

from 73.6% in 1990

26.0% rent

Afford Score

3.0

−18%since 1990

from 3.6 in 1990

1990 – 2024

RELATED:See current rent listings in Knox County on RentDataNow

Section 04

Race & ethnicity

1990

White, non-Hispanic99.2%(36,030)

Black0.1%(51)

Hispanic / Latino0.2%(79)

Asian0.1%(53)

Diversity Score2.5%(890)

2000

White, non-Hispanic97.9%(38,777)

Black0.2%(78)

Hispanic / Latino0.6%(225)

Asian0.4%(141)

Diversity Score2.8%(1,112)

Diversity Score

+15%since 1990

from 2 in 1990

1990 – 2024

Section 05

Education

Bachelor's degree or higher

26.2%

+6.4 ptssince 1990

from 19.8% in 1990

US average: 24.4%

High school or higher

87.5%

+6.6 ptssince 1990

from 80.8% in 1990

US average: 80.3%

Graduate degree

9.2%

+3.1 ptssince 1990

from 6.0% in 1990

US average: 8.8%

Section 06

Commute & transportation

Average commute

13.2 min

−41%since 1990

from 22.4 min in 1990

US average: 17.6

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Knox County

Head to head

Compare Knox County to nearby counties

KNOX COUNTY VS

Lincoln County

Income$76,875+109%

Home value$332,700+202%

Population36,595−11%

SEE FULL COMPARISON →

KNOX COUNTY VS

Waldo County

Income$72,782+98%

Home value$257,700+134%

Population40,693−1%

SEE FULL COMPARISON →

KNOX COUNTY VS

Sagadahoc County

Income$87,806+139%

Home value$333,300+202%

Population37,979−8%

SEE FULL COMPARISON →

KNOX COUNTY VS

Kennebec County

Income$69,077+88%

Home value$238,200+116%

Population129,067+214%

SEE FULL COMPARISON →

Frequently asked

How many people live in Knox County, Maine?

Knox County, Maine has about 39,618 residents according to the 2000 Census.

What is the median household income in Knox County, Maine?

The typical household in Knox County, Maine earns about $36,774 a year. Half of households make more than that, and half make less.

Is Knox County, Maine expensive?

In Knox County, Maine, the median home is worth about $110,200, and the typical rent is about $517 a month.

How educated are people in Knox County, Maine?

About 26.2% of adults age 25 and over in Knox County, Maine hold a bachelor's degree or higher.

What is the poverty rate in Knox County, Maine?

About 10.1% of people in Knox County, Maine live below the federal poverty line.

Has Knox County, Maine grown since 1990?

Yes, Knox County, Maine has grown since 1990. The population has added about 3,308 residents, a change of about 9 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →