Mill Plain, Connecticut Population 2024

1,971

Mill Plain is a city located in Connecticut. Mill Plain has a 2024 population of 1,971. Mill Plain is currently growing at a rate of 3.41% annually and its population has increased by 17.46% since the most recent census, which recorded a population of 1,678 in 2020.

The average household income in Mill Plain is $235,102 with a poverty rate of 0.71%. The median age in Mill Plain is 40.9 years: 36.7 years for males, and 45.5 years for females.

Mill Plain Demographics

According to the most recent ACS, the racial composition of Mill Plain was:

  • White: 97.94%
  • Two or more races: 1.85%
  • Other race: 0.22%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
0.5 sq mi
Density (mi²)
4,047.10/sq mi
Growth Since 2020
17.46% (293)
The current population of Mill Plain, Connecticut is 1,971 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 1,678.

Population by Race

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Race
Population
Percentage (of total)
White1,80397.94%
Two or more races341.85%
Other race40.22%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Mill Plain Population by Race

Mill Plain Population Pyramid 2024

Mill Plain Median Age

40.9

Total

36.7

Male

45.5

Female

Mill Plain Adults

There are 1,373 adults, (334 of whom are seniors) in Mill Plain.

Mill Plain Age Dependency

77.2

Age Dependency Ratio

32.1

Old Age Dependency Ratio

45

Child Dependency Ratio

Mill Plain Sex Ratio

Female88448.02%
Male95751.98%

Mill Plain Population by Age

Mill Plain Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6292.9394.15.9
Married4903.0992.47.6
Female653.061000
Non Family451.131000
Male292.621000

3.05

Average Family Size

2.93

Average Household Size

94.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mill Plain Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade80.68%
Associates Degree352.96%
Bachelors Degree39533.45%
Graduate Degree47440.14%
High School Graduate282.37%
Less Than 9th Grade60.51%
Some College23519.9%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mill Plain Educational Attainment by Sex (over 25)

Mill Plain Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White1,1611,153855
Hispanic201414
2+ Races141414

The highest rate of high school graduation is among 2+ races people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 100%.

Mill Plain Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$93,438$167,639$61,429
Graduate Degree$125,833$237,917$92,266
High School Graduate$0$0$0
Less Than 9th Grade$0$0$0
Overall$94,268$153,847$59,922
Some College$0$153,505$24,020

$94,268

Average Earnings

$153,847

Average Male

$59,922

Average Female

Mill Plain Earnings by Educational Attainment

Mill Plain Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mill Plain Language

89.32% of Mill Plain residents speak only English, while 10.68% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 8.83% of the population.

Mill Plain Language

Mill Plain Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,78990.5%
Other44100%
Hispanic5247.69%

0.71%

Overall Poverty Rate

0%

Male Poverty Rate

1.47%

Female Poverty Rate

Poverty in Mill Plain

The race most likely to be in poverty in Mill Plain is Other, with 100% below the poverty level.

The race least likely to be in poverty in Mill Plain is White, with 0.5% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 0%, and for those that did not work, the poverty rate was 1.86%.

Mill Plain Poverty

rate

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Rate
Poverty
Bachelors or Greater1.04%
Less Than 9th Grade0%
High School0%
Some College0%

Mill Plain Poverty Rate by Education

rate

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Rate
Poverty
Male Employed0%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

Mill Plain Poverty Rate by Employment Status and Sex

Mill Plain Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$188,229$247,594
Households$182,625$235,102
Married Families$198,796$-999,999,999
Non Families-$60,589

mean

median

Income by Household Type

Mill Plain Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

61.6%

Overall Marriage Rate

65.3%

Male Marriage Rate

57.9%

Female Marriage Rate

Mill Plain Married by Age and Sex

male

female

Mill Plain Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Mill Plain Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mill Plain Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

48

Number of Veterans

48

Male Veterans

0

Female Veterans

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War
Veterans
Vietnam14
Korea9
World War II6
Second Gulf War0
First Gulf War0

Mill Plain Veterans by War

count

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Age Group
Veterans
75+40
65 to 748
18 to 340
35 to 540
55 to 640

Mill Plain Veterans by Age

count

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Name
Veterans
% of Total
White483.53%

Mill Plain Veterans by Race

Mill Plain Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

43.75%

Veteran Disability Rate

Mill Plain Veterans by Education

LaborForceParticipation

74.4%

Labor Force Participation

61.6%

Employment Rate

17.2%

Unemployment Rate

Mill Plain Employment by Age

LaborForceParticipation

Mill Plain Employment by Race

LaborForceParticipation

Mill Plain Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

53.72%

Born in Mill Plain

97.45%

Native Born

2.55%

Foreign Born

1.52%

Non Citizen

1.03%

Naturalized

Place of Birth

97.45% of Mill Plain residents were born in the United States, with 53.72% having been born in Connecticut. 1.52% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Mill Plain Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20241,971653.41%
20231,906653.53%
20221,841653.66%
20211,776985.84%
20201,67800%

Mill Plain Population by Year