Port Jefferson, New York Population 2021

8,099
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Port Jefferson is a city located in Suffolk County New York. With a 2020 population of 8,099, it is the 107th largest city in New York and the 3589th largest city in the United States . Port Jefferson is currently declining at a rate of -0.28% annually but its population has increased by 4.50% since the most recent census, which recorded a population of 7,750 in 2010. Spanning over 3 miles, Port Jefferson has a population density of 2,648 people per square mile.

The average household income in Port Jefferson is $143,489 with a poverty rate of 4.53%. The median rental costs in recent years comes to $1,838 per month, and the median house value is $513,500. The median age in Port Jefferson is 45.1 years, 43.2 years for males, and 45.8 years for females.

Port Jefferson Demographics

According to the most recent ACS, the racial composition of Port Jeffersonwas:

  • White: 86.41%
  • Asian: 8.15%
  • Black or African American: 2.14%
  • Two or more races: 2.05%
  • Other race: 1.25%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Port Jefferson, New York is 8,099 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 8,099.The last official US Census in 2010 recorded the population at 7,750.

Port Jefferson, New York Population 2021

Population by Race

Race Population Percentage
White6,86086.41%
Asian6478.15%
Black or African American1702.14%
Two or More Races1632.05%
Some Other Race991.25%
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Port Jefferson Population by Race

Port Jefferson Population Pyramid $2021

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Port Jefferson Median Age

45.1


Total

43.2


Male

45.8


Female

Port Jefferson Adults

There are 6,319 adults, (1,674 of whom are seniors) in Port Jefferson.

Port Jefferson Age Dependency

70.9

Age Dependency Ratio

36

Old Age Dependency Ratio

34.9

Child Dependency Ratio

Port Jefferson Sex Ratio

Female

3,999

50.37%

Male

3,940

49.63%

Port Jefferson Population by Age

Port Jefferson Renter vs Owner Occupied by Household Type

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Port Jefferson Household Types

Type Owner Renter
Male37.4%62.6%
Non Family47.5%52.5%
Female63.7%36.3%
All68.3%31.7%
Married83.2%16.8%

68.3%

Rate of Home Ownership

Port Jefferson Households and Families

Type Count Average Size Owned
All2,9932.5468.3
Married1,6753.383.2
Non Family1,0071.2447.5
Female2122.8763.7
Male992.4437.4

3.12

Average Family Size

2.54

Average Household Size

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Port Jefferson Households by Type

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Education Attained Count Percentage
Less Than 9th Grade370.64%
9th to 12th Grade1943.36%
High School Graduate80013.87%
Some College91315.83%
Associates Degree4658.06%
Bachelors Degree97316.87%
Graduate Degree2,38641.37%
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Port Jefferson Educational Attainment by Sex (over 25)

Port Jefferson Educational Attainment by Race

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Race Total High School Bachelors
White4,7924,6112,734
Asian406406336
Hispanic379329209
Black12412443
2+ Races757537
Other Race715419

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

The highest rate of bachelors degrees is among asian people with a rate of 82.76%.

Port Jefferson Educational Attainment by Race

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Name Average Male Female
Overall$63,399$77,991$49,500
Less Than 9th Grade$$$
High School Graduate$38,750$69,583$27,880
Some College$43,438$52,663$37,841
Bachelors Degree$69,265$77,297$56,591
Graduate Degree$85,227$108,345$77,308

$63,399

Average Earnings

$77,991

Average Male

$49,500

Average Female

Port Jefferson Earnings by Educational Attainment

Port Jefferson Language by Age

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Port Jefferson Language

83.97% of Port Jefferson residents speak only English, while 16.03% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 6.68% of the population.

Port Jefferson Language

Port Jefferson Poverty by Race

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Name Total In Poverty Poverty Rate
White6,2522413.85%
Hispanic5006513.00%
Asian647233.55%
Black1321914.39%
Other841416.67%

4.53%

Overall Poverty Rate

4.10%

Male Poverty Rate

4.96%

Female Poverty Rate

Poverty in Port Jefferson

The race most likely to be in poverty in Port Jefferson is Other, with 16.67% below the poverty level.

The race least likely to be in poverty in Port Jefferson is Asian, with 3.55% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.00%. Among those working part-time, it was 6.23%, and for those that did not work, the poverty rate was 12.44%.

Port Jefferson Poverty

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Name Poverty
High School15.47%
Less Than 9th Grade15.17%
Bachelors or Greater3.38%
Some College1.99%

Port Jefferson Poverty Rate by Education

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Rate Poverty
Female Unemployed27.59%
Male Unemployed3.45%
Female Employed3.10%
Male Employed1.46%

Port Jefferson Poverty Rate by Employment Status and Sex

Port Jefferson Income by Household Type

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Name Median Mean
Households$111,442$143,489
Families$138,750$172,617
Married Families$151,989-
Non Families$66,161$80,046
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Income by Household Type

Port Jefferson Marital Status

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Marriage Rates

54.6%

Overall Marriage Rate

56.7%

Male Marriage Rate

52.6%

Female Marriage Rate

Port Jefferson Married by Age and Sex

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Port Jefferson 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.

Port Jefferson Marital Status by Race

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Port Jefferson Marital Status

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355

Number of Veterans

330

Male Veterans

25

Female Veterans

War Veterans
Vietnam94
World War II67
Korea55
First Gulf War21
Second Gulf War10

Port Jefferson Veterans by War

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Age Group Veterans
75+171
65 to 7484
55 to 6468
35 to 5422
18 to 3410

Port Jefferson Veterans by Age

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Name Veterans % of Total
White3416.07%
Hispanic256.05%
Black1411.11%

Port Jefferson Veterans by Race

Port Jefferson Veterans by Education

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0.00%

Veteran Poverty Rate

20.30%

Veteran Disability Rate

Port Jefferson Veterans by Education

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63.8%

Labor Force Participation

62.4%

Employment Rate

2.1%

Unemployment Rate

Port Jefferson Employment by Age

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Port Jefferson Employment by Race

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Port Jefferson Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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70.02%

Born in Port Jefferson

84.51%

Native Born

15.49%

Foreign Born

7.66%

Non Citizen

7.83%

Naturalized

Place of Birth

84.51% of Port Jefferson residents were born in the United States, with 70.02% having been born in New York. 7.66% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Port Jefferson Place of Birth

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
20218,099-23-0.28%
20208,122-23-0.28%
20198,145-23-0.28%
20188,1683214.09%
20177,847770.99%
20167,770-26-0.33%
20157,79660.08%
20147,79010.01%
20137,789330.43%
20127,75660.08%
20117,750-6-0.08%
20107,756-81-0.10%
20007,8373820.50%
19907,4557241.03%
19806,7311,2162.01%
19705,5152,9638.01%
19602,5520.00%

Port Jefferson Population by Year