Islip vs Mastic Beach

A side-by-side comparison of Islip and Mastic Beach: population, income, housing, and more.

Islip and Mastic Beach are places in New York. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Islip has the higher population (17,224 vs 16,382 in Mastic Beach). Islip has the higher median household income ($122,596 vs $109,381 in Mastic Beach). Islip has the higher median home value ($486,900 vs $326,600 in Mastic Beach).

Population, income & housing

	Islip	Mastic Beach
Population	17,224	16,382
Median age	44.0 yrs	38.7 yrs
Median household income	$122,596	$109,381
Median home value	$486,900	$326,600
Median gross rent	$2,192	$2,342
Housing units	6,373	5,509
Homeownership rate	84.5%	82.5%
Bachelor's degree or higher	35.0%	21.5%
Unemployment rate	4.9%	6.5%

Trends (ACS 5-year, 2019–2023)

	Islip	Mastic Beach
Population	17,853 → 17,224 (-3.5%)	12,610 → 16,382 (+29.9%)
Median household income	$110,387 → $122,596 (+11.1%)	$72,137 → $109,381 (+51.6%)
Median home value	$378,600 → $486,900 (+28.6%)	$225,100 → $326,600 (+45.1%)
Median gross rent	$1,620 → $2,192 (+35.3%)	$1,829 → $2,342 (+28.0%)

Islip

Population

17,85317,224

Median household income

$110,387$122,596

Median home value

$378,600$486,900

Median gross rent

$1,620$2,192

Mastic Beach

Population

12,61016,382

Median household income

$72,137$109,381

Median home value

$225,100$326,600

Median gross rent

$1,829$2,342

Age & race/ethnicity

Age distribution (share)

	Islip	Mastic Beach
Under 5	5.5%	7.3%
5 to 17	13.5%	22.2%
18 to 24	6.4%	7.9%
25 to 34	13.1%	9.2%
35 to 44	12.7%	15.9%
45 to 54	12.2%	11.5%
55 to 64	18.2%	14.7%
65 to 74	10.9%	6.1%
75 and over	7.6%	5.2%

Race & ethnicity (share)

	Islip	Mastic Beach
White (non-Hispanic)	70.7%	67.5%
Black or African American	3.6%	6.7%
American Indian & Alaska Native	0.0%	0.0%
Asian	4.6%	2.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.2%	0.0%
Two or more races	1.4%	5.8%
Hispanic or Latino	19.4%	17.6%

Educational attainment (age 25+)

Share of adults 25+

	Islip	Mastic Beach
No high school diploma	13.0%	13.6%
High school graduate	26.3%	36.3%
Some college or associate's	25.7%	28.6%
Bachelor's degree	21.6%	12.3%
Graduate or professional degree	13.3%	9.2%

Commute to work

How workers get to work (share)

	Islip	Mastic Beach
Drove alone	78.5%	81.7%
Carpooled	7.9%	6.7%
Public transit	3.6%	1.5%
Walked	1.1%	0.5%
Bicycle	0.2%	0.2%
Worked from home	8.2%	7.8%
Other means	0.5%	1.7%

Housing

Units in structure (share)

	Islip	Mastic Beach
1-unit, detached	74.3%	96.4%
1-unit, attached	7.2%	2.0%
2 to 4 units	6.3%	1.2%
5 to 19 units	3.2%	0.0%
20 or more units	7.2%	0.3%
Mobile home & other	1.7%	0.2%

Poverty & households

	Islip	Mastic Beach
Poverty rate	5.8%	21.7%
Average household size	2.82	3.20
Mean commute (minutes)	29	38
Median year structure built	1965	1971