Iselin, NJ
Demographics And Statistics

We take you around Iselin to find out what it's like to call it home.

Living in Iselin, New Jersey

Life in Iselin research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Iselin over the past nine years using Census, FBI, Zillow, and other primary data sources. Here's a snapshot of Iselin based on the most recently available data.

19,551 Population
$560,048 Median home value
$109,500 Median income
131 Cost of living +31% vs US
$2,113 Median rent
3.9% Unemployment
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Iselin SnackAbility

6
Overall SnackAbility
Jobs 8/10
Housing 9/10
Affordability 6/10
Diversity 9.5/10
SafetyN/A
Amenities 9/10
Education 8/10
Commute 3/10

Cost of living in Iselin summary. We use data on the cost of living to determine how expensive it is to live in Iselin. Real estate prices drive most of the variance in cost of living around New Jersey. Key points include:

  • The cost of living in Iselin is 131 with 100 being average.

  • The cost of living in Iselin is 1.3x higher than the national average.

  • The median home value in Iselin is $560,048.

  • The median income in Iselin is $109,500.

131
Iselin's Overall Cost Of Living
1.3x
Higher Than The National Average
Iselin
US

Cost Of Living In Iselin Comparison Table

Living Expense Iselin New Jersey National Average
Overall 131 125 100
Services 105 107 100
Groceries 113 113 100
Health 178 155 100
Housing 111 116 100
Transportation 109 112 100
Utilities 106 113 100
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Source: Cost of living index, normalized to US average = 100

Iselin, NJ Weather

  • The average high in Iselin is 63.8° and the average low is 43.4°.

  • There are 77.0 days of precipitation each year.

  • Expect an average of 47.8 inches of precipitation each year with 24.7 inches of snow.

StatIselin
Average Annual High63.8
Average Annual Low43.4
Annual Precipitation Days77.0
Average Annual Precipitation47.8
Average Annual Snowfall24.7
63.8°
Average High
77.0
Days of Rain

Source: NOAA climate normals (30-year)

Rankings & Articles For Iselin

Locations Around Iselin

Map Of Iselin, NJ

Best Places Around Iselin

1

Martinsville, NJ
Population 11,559

$902,737+61% vs Iselin
2

Florham Park, NJ
Population 13,564

$1,025,255+83% vs Iselin
3

Bradley Gardens, NJ
Population 14,165

$684,571+22% vs Iselin
4

Westfield, NJ
Population 31,111

$1,269,852+127% vs Iselin
5

Green Knoll, NJ
Population 6,789

$748,229+34% vs Iselin
6

Middlesex, NJ
Population 14,645

$536,277-4% vs Iselin
7

Mountainside, NJ
Population 7,049

$1,043,568+86% vs Iselin
8

Mendham, NJ
Population 4,973

$1,027,295+83% vs Iselin
9

Bernardsville, NJ
Population 7,916

$1,003,866+79% vs Iselin
10

New Providence, NJ
Population 13,727

$990,084+77% vs Iselin

Iselin Demographics And Statistics

Population over time in Iselin

The current population in Iselin is 19,551. The population has increased 4.4% from 2010.

Year Population % Change
2024 19,551 2.1%
2023 19,151 3.5%
2022 18,511 4.7%
2021 17,684 1.9%
2020 17,356 -4.5%
2019 18,175 -0.5%
2018 18,274 -5.9%
2017 19,422 0.1%
2016 19,411 1.4%
2015 19,146 3.7%
2014 18,457 -2.9%
2013 18,999 -0.6%
2012 19,115 1.9%
2011 18,763 0.2%
2010 18,726 -

Race / Ethnicity in Iselin

White 23.1% (4,516)
African American 10.8% (2,103)
American Indian 0.0% (0)
Asian 48.3% (9,444)
Hawaiian 0.0% (0)
Other 0.8% (159)
Two Or More 2.2% (435)
Hispanic 14.8% (2,894)
See the full breakdown

Iselin is:

  • 23.1% White with 4,516 White residents.

  • 10.8% African American with 2,103 African American residents.

  • 0.0% American Indian with 0 American Indian residents.

  • 48.3% Asian with 9,444 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.8% Other with 159 Other residents.

  • 2.2% Two Or More with 435 Two Or More residents.

  • 14.8% Hispanic with 2,894 Hispanic residents.

Race Iselin NJ USA
White 23.1% 50.9% 57.4%
African American 10.8% 12.2% 11.9%
American Indian 0.0% 0.1% 0.5%
Asian 48.3% 10.0% 5.9%
Hawaiian 0.0% 0.0% 0.2%
Other 0.8% 0.8% 0.6%
Two Or More 2.2% 3.5% 4.3%
Hispanic 14.8% 22.5% 19.3%

Gender in Iselin

Female 49.9% (9,750)
Male 50.1% (9,801)
See the full breakdown
  • Iselin is 49.9% female with 9,750 female residents.

  • Iselin is 50.1% male with 9,801 male residents.

Gender Iselin NJ USA
Female 49.9% 50.8% 50.5%
Male 50.1% 49.2% 49.5%

Highest level of educational attainment in Iselin for adults over 25

< 9th Grade 2.0% (391)
9-12th Grade 8.0% (1,564)
High School / GED 19.0% (3,714)
Some College 13.0% (2,541)
Associate's Degree 4.0% (782)
Bachelor's Degree 29.0% (5,669)
Master's Degree 21.0% (4,105)
Professional Degree 2.0% (391)
Doctorate Degree 2.0% (391)
See the full breakdown
  • 2.0% of adults in Iselin completed < 9th grade.

  • 8.0% of adults in Iselin completed 9-12th grade.

  • 19.0% of adults in Iselin completed high school / ged.

  • 13.0% of adults in Iselin completed some college.

  • 4.0% of adults in Iselin completed associate's degree.

  • 29.0% of adults in Iselin completed bachelor's degree.

  • 21.0% of adults in Iselin completed master's degree.

  • 2.0% of adults in Iselin completed professional degree.

  • 2.0% of adults in Iselin completed doctorate degree.

Education Iselin NJ USA
< 9th Grade 2.0% 4.0% 4.0%
9-12th Grade 8.0% 5.0% 6.0%
High School / GED 19.0% 25.0% 26.0%
Some College 13.0% 15.0% 19.0%
Associate's Degree 4.0% 7.0% 9.0%
Bachelor's Degree 29.0% 26.0% 22.0%
Master's Degree 21.0% 13.0% 10.0%
Professional Degree 2.0% 3.0% 2.0%
Doctorate Degree 2.0% 2.0% 2.0%

Household Income For Iselin, New Jersey

Less than $10,000 3.5% (67,852)
$10,000 to $14,999 2.2% (43,833)
$15,000 to $24,999 3.7% (71,755)
$25,000 to $34,999 2.6% (50,738)
$35,000 to $49,999 5.6% (108,983)
$50,000 to $74,999 11.2% (219,768)
$75,000 to $99,999 14.8% (289,722)
$100,000 to $149,999 21.3% (416,119)
$150,000 to $199,999 15.0% (293,024)
$200,000 or more 20.1% (393,301)
See the full breakdown
  • 3.5% of households in Iselin earn Less than $10,000.

  • 2.2% of households in Iselin earn $10,000 to $14,999.

  • 3.7% of households in Iselin earn $15,000 to $24,999.

  • 2.6% of households in Iselin earn $25,000 to $34,999.

  • 5.6% of households in Iselin earn $35,000 to $49,999.

  • 11.2% of households in Iselin earn $50,000 to $74,999.

  • 14.8% of households in Iselin earn $75,000 to $99,999.

  • 21.3% of households in Iselin earn $100,000 to $149,999.

  • 15.0% of households in Iselin earn $150,000 to $199,999.

  • 20.1% of households in Iselin earn $200,000 or more.

Income Iselin NJ USA
Less than $10,000 3.5% 4.1% 5.0%
$10,000 to $14,999 2.2% 2.7% 3.4%
$15,000 to $24,999 3.7% 4.8% 6.3%
$25,000 to $34,999 2.6% 5.1% 6.6%
$35,000 to $49,999 5.6% 7.6% 10.1%
$50,000 to $74,999 11.2% 12.8% 15.5%
$75,000 to $99,999 14.8% 11.3% 12.6%
$100,000 to $149,999 21.3% 18.1% 17.5%
$150,000 to $199,999 15.0% 11.8% 9.6%
$200,000 or more 20.1% 21.6% 13.4%

Source: U.S. Census ACS 5-year estimates (2024)