Islip vs Ronkonkoma

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

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

Ronkonkoma has the higher population (18,368 vs 17,224 in Islip). Ronkonkoma has the higher median household income ($125,534 vs $122,596 in Islip). Islip has the higher median home value ($486,900 vs $467,600 in Ronkonkoma).

Population, income & housing

	Islip	Ronkonkoma
Population	17,224	18,368
Median age	44.0 yrs	37.9 yrs
Median household income	$122,596	$125,534
Median home value	$486,900	$467,600
Median gross rent	$2,192	$2,275
Housing units	6,373	6,514
Homeownership rate	84.5%	80.5%
Bachelor's degree or higher	35.0%	34.5%
Unemployment rate	4.9%	7.2%

Trends (ACS 5-year, 2019–2023)

	Islip	Ronkonkoma
Population	17,853 → 17,224 (-3.5%)	18,309 → 18,368 (+0.3%)
Median household income	$110,387 → $122,596 (+11.1%)	$106,434 → $125,534 (+17.9%)
Median home value	$378,600 → $486,900 (+28.6%)	$345,900 → $467,600 (+35.2%)
Median gross rent	$1,620 → $2,192 (+35.3%)	$1,681 → $2,275 (+35.3%)

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

Ronkonkoma

Population

18,30918,368

Median household income

$106,434$125,534

Median home value

$345,900$467,600

Median gross rent

$1,681$2,275

Age & race/ethnicity

Age distribution (share)

	Islip	Ronkonkoma
Under 5	5.5%	5.5%
5 to 17	13.5%	15.3%
18 to 24	6.4%	10.7%
25 to 34	13.1%	13.8%
35 to 44	12.7%	13.4%
45 to 54	12.2%	15.2%
55 to 64	18.2%	13.2%
65 to 74	10.9%	6.9%
75 and over	7.6%	6.1%

Race & ethnicity (share)

	Islip	Ronkonkoma
White (non-Hispanic)	70.7%	64.2%
Black or African American	3.6%	5.1%
American Indian & Alaska Native	0.0%	0.0%
Asian	4.6%	6.8%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.2%	0.3%
Two or more races	1.4%	0.8%
Hispanic or Latino	19.4%	22.8%

Educational attainment (age 25+)

Share of adults 25+

	Islip	Ronkonkoma
No high school diploma	13.0%	5.2%
High school graduate	26.3%	31.5%
Some college or associate's	25.7%	28.7%
Bachelor's degree	21.6%	19.0%
Graduate or professional degree	13.3%	15.6%

Commute to work

How workers get to work (share)

	Islip	Ronkonkoma
Drove alone	78.5%	81.0%
Carpooled	7.9%	6.5%
Public transit	3.6%	3.3%
Walked	1.1%	0.3%
Bicycle	0.2%	0.0%
Worked from home	8.2%	7.7%
Other means	0.5%	1.2%

Housing

Units in structure (share)

	Islip	Ronkonkoma
1-unit, detached	74.3%	79.8%
1-unit, attached	7.2%	0.6%
2 to 4 units	6.3%	6.3%
5 to 19 units	3.2%	10.2%
20 or more units	7.2%	3.1%
Mobile home & other	1.7%	0.0%

Poverty & households

	Islip	Ronkonkoma
Poverty rate	5.8%	3.2%
Average household size	2.82	3.03
Mean commute (minutes)	29	32
Median year structure built	1965	1970