Iselin vs Colonia

Side-by-side comparison of Iselin, NJ and Colonia, NJ - population, economics, education, health, hospitals, climate, and cost of living from official U.S. government data.

Reading a Iselin vs Colonia comparison, what matters, what doesn't

Iselin (19K residents in New Jersey) and Colonia (18K residents in New Jersey) differ first on the three numbers nearly every comparison starts with: median household income ($109,500 vs $122,713), median home value ($426,800 vs $493,100), and median rent ($2,113 vs $2,047 per month). Those three are highly correlated within a region but often decouple across regions because they respond to different levers, income tracks the local job market, home values track housing supply plus interest-rate pressure, and rent tracks short-run vacancy. Comparing all three at once is how you spot whether a city is "expensive because people earn a lot" or "expensive despite what they earn."

The second layer is the layer most headline comparisons skip. Poverty rate (7.9% vs 7.4%) and unemployment (3.9% vs 4.9%) describe the distribution under the median, which two cities with similar averages can present very differently. The share with a bachelor's degree or higher (53.7% vs 48.7%) is the single best proxy for income trajectory over the next decade.

Areazine renders each row with a national-average tick mark precisely so you can tell in one glance whether both cities are above/below the U.S. norm (they often are, cities with active residential markets self-select for certain profiles) rather than focusing on which is "better." For life decisions, where to relocate, where to retire, where to enroll a child in school, pair this page with the individual city profiles below, where health indicators, hospital ratings, school counts, and climate normals appear in full rather than as the compressed single row you see here.

Iselin
New Jersey
Pop: 19K
Income: $109,500
Home: $426,800
Colonia
New Jersey
Pop: 18K
Income: $122,713
Home: $493,100

Head-to-Head Summary

Side-by-side comparison of Iselin and Colonia on key metrics
Metric Iselin Colonia
Population 19K 18K
Median Household Income $109,500 $122,713
Median Home Value $426,800 $493,100
Median Rent $2,113/mo $2,047/mo
Poverty Rate 7.9% 7.4%
Unemployment Rate 3.9% 4.9%
Bachelor's Degree+ 53.7% 48.7%

Population

Source: U.S. Census Bureau ACS 2024 (5-year)
Population
19K
Population
18K
Median Age
38.5 yrs
Median Age
43.6 yrs
10-Year Pop Growth Same
+7%
10-Year Pop Growth
+7%

Economics

Source: U.S. Census Bureau ACS 2024 (5-year)
Median Household Income
$109,500
Median Household Income
$122,713
Median Home Value
$426,800
Median Home Value
$493,100
Median Rent
$2,113
Median Rent
$2,047
Poverty Rate
7.9%
Poverty Rate
7.4%
Unemployment Rate
3.9%
Unemployment Rate
4.9%
10-Year Income Growth Same
+40%
10-Year Income Growth
+40%

Education & Work

Source: U.S. Census Bureau ACS 2024 (5-year)
Bachelor's Degree or Higher
53.7%
Bachelor's Degree or Higher
48.7%
Work From Home
20.8%
Work From Home
15%
Public Transit
12.4%
Public Transit
3.7%

Health (CDC PLACES)

Source: CDC PLACES 2023
Frequent Mental Distress
12.1%
Frequent Mental Distress
14.1%
Obesity
24%
Obesity
30%
Physical Inactivity
24.8%
Physical Inactivity
22.9%
Smoking
8.9%
Smoking
10.3%
Lack of Health Insurance
8.1%
Lack of Health Insurance
8.3%

Healthcare

Source: CMS Hospital Compare 2024
Hospitals
0
Hospitals
0
Avg Hospital Rating
N/A
Avg Hospital Rating
N/A

Demographics

Race categories sum to 100%. Hispanic or Latino is an ethnicity that spans all race categories, shown separately per Census Bureau methodology.

Iselin Population
Race
White 25.4%
African American 10.8%
Asian 48.5%
Two or More Races 0.5%
Colonia Population
Race
White 58.4%
African American 5.2%
Asian 15.6%
Two or More Races 3.3%

Want to compare different cities?

Use our interactive city comparison tool →
Data Sources

Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates). Health data from the CDC PLACES (2023). Hospital data from CMS Hospital Compare (2024). Climate data from NOAA Climate Normals (1991–2020). Cost of living from BEA Regional Price Parities via FRED.

Related

Population is place-level (U.S. Census Bureau). Income, home value, rent, poverty and education are place-level American Community Survey figures; health from CDC PLACES, hospitals from CMS Hospital Compare, climate from NOAA Climate Normals, and cost of living from BEA Regional Price Parities. See our methodology for details.