Middlesex County, Connecticut Population 2021

Middlesex County, Connecticut's estimated population is 161,568 with a growth rate of -0.27% in the past year according to the most recent United States census data. Middlesex County, Connecticut is the 7th largest county inConnecticut. The 2010 Population was 165,616 and has seen a growth of -2.44% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
2021161,568-434-0.27%
2020162,002-434-0.27%
2019162,436-434-0.27%
2018162,870-72-0.04%
2017162,942-350-0.21%
2016163,292-432-0.26%
2015163,724-1,062-0.64%
2014164,786-543-0.33%
2013165,329-305-0.18%
2012165,634-540-0.32%
2011166,1745580.34%
2010165,61622,42015.66%
1990143,19614,17910.99%
1980129,01714,20112.37%
1970114,81625,95129.20%
196088,86521,53331.98%
195067,33211,33320.24%
194055,9994,6118.97%
193051,3883,8388.07%
192047,5501,9134.19%
191045,6373,8779.28%
190041,7602,2365.66%
189039,5243,93511.06%
188035,589-510-1.41%
187036,0995,24016.98%
186030,8593,64313.39%
185027,2162,3379.39%
184024,879350.14%
183024,8442,43910.89%
182022,4051,6828.12%
181020,7238764.41%
180019,8479925.26%
179018,8550.00%
2021 Growth Rate
-0.27% (-434)
Founded
May, 1785
2010 Population
165,616
Growth Since 2010
-2.44% (-4,048)
map placeholder

Middlesex County, Connecticut Population Growth

Population by Race

Race Population Percentage
White143,48688.00%
Black or African American9,1195.59%
Asian5,0173.08%
Two or More Races3,3672.06%
Some Other Race1,7421.07%
American Indian and Alaska Native3120.19%
Native Hawaiian and Other Pacific Islander100.01%
Loading...

Middlesex County, Connecticut Population by Race

Middlesex County, Connecticut Population Pyramid $2021

Loading...

Middlesex County, Connecticut Median Age

45.7


Total

44


Male

47.1


Female

Middlesex County, Connecticut Adults

There are 133,740 adults, (32,072 of whom are seniors) in Middlesex County, Connecticut.

Middlesex County, Connecticut Age Dependency

60.4

Age Dependency Ratio

31.5

Old Age Dependency Ratio

28.8

Child Dependency Ratio

Middlesex County, Connecticut Sex Ratio

Female

83,412

51.16%

Male

79,641

48.84%

Middlesex County, Connecticut Population by Age

Middlesex County, Connecticut Renter vs Owner Occupied by Household Type

map placeholder

Middlesex County, Connecticut Household Types

Type Owner Renter
Female55%45%
Non Family56.4%43.6%
All73.5%26.5%
Male76.1%23.9%
Married89%11%

73.5%

Rate of Home Ownership

Middlesex County, Connecticut Households and Families

Type Count Average Size Owned
All66,9712.3473.5
Married33,9642.9689
Non Family24,3971.2456.4
Female6,2753.0355
Male2,3353.176.1

2.91

Average Family Size

2.34

Average Household Size

Loading...

Middlesex County, Connecticut Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade2,3371.96%
9th to 12th Grade4,5673.83%
High School Graduate30,81025.82%
Some College20,15516.89%
Associates Degree11,1659.36%
Bachelors Degree28,16023.60%
Graduate Degree22,13918.55%
Loading...

Middlesex County, Connecticut Educational Attainment by Sex (over 25)

Middlesex County, Connecticut Educational Attainment by Race

Loading...
Race Total High School Bachelors
White103,33898,26844,375
Black6,0395,3121,644
Hispanic5,8304,9031,687
Asian3,3733,1122,064
2+ Races1,3281,266526
Other Race1,175840192
Native American20520528

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 61.19%.

Middlesex County, Connecticut Educational Attainment by Race

Loading...
Name Average Male Female
Overall$55,429$64,307$46,748
Less Than 9th Grade$25,261$26,745$16,048
High School Graduate$41,276$51,523$30,026
Some College$47,205$55,470$37,890
Bachelors Degree$68,963$79,300$55,719
Graduate Degree$83,638$96,434$73,302

$55,429

Average Earnings

$64,307

Average Male

$46,748

Average Female

Middlesex County, Connecticut Earnings by Educational Attainment

Middlesex County, Connecticut Language by Age

Loading...

Middlesex County, Connecticut Language

89.32% of Middlesex County, Connecticut 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 4.83% of the population.

Middlesex County, Connecticut Language

Middlesex County, Connecticut Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White133,1126,9715.24%
Hispanic9,7041,94520.04%
Black8,5281,40116.43%
Multiple3,18750615.88%
Asian4,39145110.27%
Other1,61844027.19%
Native31111336.33%
Islander1010100.00%

6.94%

Overall Poverty Rate

6.07%

Male Poverty Rate

7.78%

Female Poverty Rate

Poverty in Middlesex County, Connecticut

The race most likely to be in poverty in Middlesex County, Connecticut is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Middlesex County, Connecticut is White, with 5.24% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.93%. Among those working part-time, it was 9.55%, and for those that did not work, the poverty rate was 13.47%.

Middlesex County, Connecticut Poverty

Loading...
Name Poverty
Less Than 9th Grade19.93%
High School9.34%
Some College6.53%
Bachelors or Greater2.66%

Middlesex County, Connecticut Poverty Rate by Education

Loading...
Rate Poverty
Female Unemployed23.30%
Male Unemployed13.07%
Female Employed4.03%
Male Employed2.69%

Middlesex County, Connecticut Poverty Rate by Employment Status and Sex

Middlesex County, Connecticut Income by Household Type

Loading...
Name Median Mean
Households$85,898$110,132
Families$110,020$134,047
Married Families$124,596$148,894
Non Families$48,115$64,338
Loading...

Income by Household Type

Middlesex County, Connecticut Marital Status

map placeholder

Marriage Rates

51.0%

Overall Marriage Rate

53.1%

Male Marriage Rate

49.1%

Female Marriage Rate

Middlesex County, Connecticut Married by Age and Sex

Loading...

Middlesex County, Connecticut Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Middlesex County, Connecticut Marital Status by Race

map placeholder

Middlesex County, Connecticut Marital Status

Loading...

9,620

Number of Veterans

9,051

Male Veterans

569

Female Veterans

War Veterans
Vietnam3,902
Second Gulf War1,385
First Gulf War1,351
Korea879
World War II610

Middlesex County, Connecticut Veterans by War

Loading...
Age Group Veterans
65 to 742,925
75+2,801
55 to 641,702
35 to 541,595
18 to 34597

Middlesex County, Connecticut Veterans by Age

Loading...
Name Veterans % of Total
White9,0117.58%
Black4836.75%
Hispanic2102.99%
Asian511.22%
2+ Races472.68%
Other Race151.15%
Native American134.80%

Middlesex County, Connecticut Veterans by Race

Middlesex County, Connecticut Veterans by Education

Loading...

5.06%

Veteran Poverty Rate

23.15%

Veteran Disability Rate

Middlesex County, Connecticut Veterans by Education

Loading...

67.4%

Labor Force Participation

64.1%

Employment Rate

4.6%

Unemployment Rate

Middlesex County, Connecticut Employment by Age

Loading...

Middlesex County, Connecticut Employment by Race

Loading...

Middlesex County, Connecticut Employment by Education

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

64.67%

Born in Middlesex County, Connecticut

92.20%

Native Born

7.80%

Foreign Born

3.15%

Non Citizen

4.65%

Naturalized

Place of Birth

92.20% of Middlesex County, Connecticut residents were born in the United States, with 64.67% having been born in Connecticut. 3.15% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Middlesex County, Connecticut Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources