Port Jefferson, New York Population 2020

8,320
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Port Jefferson is a city located in New York. With a 2020 population of 8,320, it is the 104th largest city in New York and the 3513th largest city in the United States. Port Jefferson is currently growing at a rate of 0.95% annually and its population has increased by 7.35% 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 2,721 people per square mile.

The average household income in Port Jefferson is $138,152 with a poverty rate of 5.23%. The median rental costs in recent years comes to $1,794 per month, and the median house value is $501,700. The median age in Port Jefferson is 45.7 years, 43.8 years for males, and 47.9 years for females. For every 100 females there are 104.1 males.

Port Jefferson Demographics

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

  • White: 87.47%
  • Asian: 7.46%
  • Black or African American: 2.10%
  • Two or more races: 1.97%
  • Other race: 1.00%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Port Jefferson, New York is 8,320, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 8,164.The last official US Census in 2010 recorded the population at 7,750.

Port Jefferson, New York Population 2020

Population by Race

Race Population Percentage
White6,88587.47%
Asian5877.46%
Black or African American1652.10%
Two or More Races1551.97%
Some Other Race791.00%
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Port Jefferson Population Pyramid 2020

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Port Jefferson Median Age

45.7


Total

43.8


Male

47.9


Female

Port Jefferson Adults

There are 6,373 adults, (1,843 of whom are seniors) in Port Jefferson.

Port Jefferson Age Dependency

73.8

Age Dependency Ratio

40.7

Old Age Dependency Ratio

33.1

Child Dependency Ratio

Port Jefferson Sex Ratio

Female

3,857

49.00%

Male

4,014

51.00%

Port Jefferson Households and Families

Port Jefferson Renter vs Owner Occupied by Household Type

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Port Jefferson Household Types

Type Owner Renter
Married81.3%18.7%
All68.2%31.8%
Female59.5%40.5%
Non Family49%51%
Male44.8%55.2%

68.2%

Rate of Home Ownership

Type Count Average Size Owned
All3,0302.4968.2
Married1,7453.1581.3
Non Family9991.2649
Female1902.8559.5
Male962.4544.8

3

Average Family Size

2.49

Average Household Size

3.2%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

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Port Jefferson Education

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Education Attained Count Percentage
Less Than 9th Grade300.51%
9th to 12th Grade1933.25%
High School Graduate95716.13%
Some College91915.49%
Associates Degree4647.82%
Bachelors Degree95316.06%
Graduate Degree2,41840.75%
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Port Jefferson Educational Attainment by Race

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Name Total High School Bachelors
White4,9074,7152,756
Hispanic442420214
Asian382382327
Black12611733
Multiple Races878741
Other Race5845

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

The highest rate of bachelors degrees is among asian people with a rate of 85.60%.

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Name Average Male Female
Overall$62,471$78,821$45,436
Less Than High School$$$
High School Grad$40,417$81,750$27,981
Some College$39,900$52,202$37,969
Bachelors Degree$64,779$77,065$53,304
Graduate Degree$84,522$106,122$76,343

$62,471

Average Earnings

$78,821

Average Male

$45,436

Average Female

Port Jefferson Language

Port Jefferson Language by Age

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Port Jefferson Language

83.30% of Port Jefferson residents speak only English, while 16.70% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 6.76% of the population.

Port Jefferson Poverty

Port Jefferson Poverty by Race

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Name Total In Poverty Poverty Rate
White6,2263165.08%
Hispanic530366.79%
Asian587254.26%
Black1342115.67%
Other581424.14%
Multiple15521.29%

5.23%

Overall Poverty Rate

4.51%

Male Poverty Rate

5.98%

Female Poverty Rate

Poverty in Port Jefferson

The race most likely to be in poverty in Port Jefferson is Other, with 24.14% below the poverty level.

The race least likely to be in poverty in Port Jefferson is Multiple, with 1.29% 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 7.75%, and for those that did not work, the poverty rate was 12.29%.

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Name Poverty
High School14.13%
Bachelors or Greater4.38%
Some College2.72%
Less Than High School0.00%
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Name Poverty
Female Unemployed20.51%
Female Employed2.82%
Male Unemployed2.27%
Male Employed1.87%

Port Jefferson Income

Port Jefferson Income by Household Type

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Name Median Mean
Households$108,592$138,152
Families$134,648$165,894
Married Families$144,250-
Non Families$60,980$75,065
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Port Jefferson Marital Status

Port Jefferson Marital Status

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Marriage Rates

57.2%

Overall Marriage Rate

58.4%

Male Marriage Rate

56.1%

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 45-54, 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 Veterans

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353

Number of Veterans

323

Male Veterans

30

Female Veterans

War Veterans
World War II89
Vietnam86
Korea77
Second Gulf War12
First Gulf War11
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Age Group Veterans
75+193
65 to 7476
55 to 6461
18 to 3412
35 to 5411
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Name Veterans % of Total
White3426.01%
Hispanic306.28%
Black118.59%

Port Jefferson Veterans by Education

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0.00%

Veteran Poverty Rate

27.79%

Veteran Disability Rate

Port Jefferson Employment Status

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61.9%

Labor Force Participation

60.6%

Employment Rate

2%

Unemployment Rate

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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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68.64%

Born in New York

83.45%

Native Born

16.55%

Foreign Born

8.59%

Non Citizen

7.97%

Naturalized

Place of Birth

83.45% of Port Jefferson residents were born in the United States, with 68.64% having been born in New York. 8.59% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
20208,320780.95%
20198,242780.96%
20188,1643164.03%
20177,848781.00%
20167,770-26-0.33%
20157,79620.03%
20147,79440.05%
20137,790330.43%
20127,75760.08%
20117,751-6-0.08%
20107,757-80-0.10%
20007,8373820.50%
19907,4557241.03%
19806,7311,2162.01%
19705,5152,9638.01%
19602,5520.00%