Islip vs Lake Ronkonkoma

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

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

Lake Ronkonkoma has the higher population (18,289 vs 17,224 in Islip). Islip has the higher median household income ($122,596 vs $102,608 in Lake Ronkonkoma). Islip has the higher median home value ($486,900 vs $484,700 in Lake Ronkonkoma).

Population, income & housing

	Islip	Lake Ronkonkoma
Population	17,224	18,289
Median age	44.0 yrs	43.1 yrs
Median household income	$122,596	$102,608
Median home value	$486,900	$484,700
Median gross rent	$2,192	$1,906
Housing units	6,373	7,062
Homeownership rate	84.5%	70.3%
Bachelor's degree or higher	35.0%	31.9%
Unemployment rate	4.9%	6.7%

Trends (ACS 5-year, 2019–2023)

	Islip	Lake Ronkonkoma
Population	17,853 → 17,224 (-3.5%)	20,667 → 18,289 (-11.5%)
Median household income	$110,387 → $122,596 (+11.1%)	$95,080 → $102,608 (+7.9%)
Median home value	$378,600 → $486,900 (+28.6%)	$366,400 → $484,700 (+32.3%)
Median gross rent	$1,620 → $2,192 (+35.3%)	$1,693 → $1,906 (+12.6%)

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

Lake Ronkonkoma

Population

20,66718,289

Median household income

$95,080$102,608

Median home value

$366,400$484,700

Median gross rent

$1,693$1,906

Age & race/ethnicity

Age distribution (share)

	Islip	Lake Ronkonkoma
Under 5	5.5%	5.7%
5 to 17	13.5%	14.7%
18 to 24	6.4%	6.4%
25 to 34	13.1%	14.1%
35 to 44	12.7%	11.3%
45 to 54	12.2%	13.8%
55 to 64	18.2%	15.9%
65 to 74	10.9%	12.3%
75 and over	7.6%	5.8%

Race & ethnicity (share)

	Islip	Lake Ronkonkoma
White (non-Hispanic)	70.7%	69.9%
Black or African American	3.6%	3.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	4.6%	8.1%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.2%	0.1%
Two or more races	1.4%	3.6%
Hispanic or Latino	19.4%	15.3%

Educational attainment (age 25+)

Share of adults 25+

	Islip	Lake Ronkonkoma
No high school diploma	13.0%	7.1%
High school graduate	26.3%	33.1%
Some college or associate's	25.7%	28.0%
Bachelor's degree	21.6%	19.1%
Graduate or professional degree	13.3%	12.8%

Commute to work

How workers get to work (share)

	Islip	Lake Ronkonkoma
Drove alone	78.5%	77.4%
Carpooled	7.9%	6.8%
Public transit	3.6%	3.9%
Walked	1.1%	1.1%
Bicycle	0.2%	0.0%
Worked from home	8.2%	9.7%
Other means	0.5%	1.2%

Housing

Units in structure (share)

	Islip	Lake Ronkonkoma
1-unit, detached	74.3%	80.2%
1-unit, attached	7.2%	2.5%
2 to 4 units	6.3%	2.0%
5 to 19 units	3.2%	6.0%
20 or more units	7.2%	9.0%
Mobile home & other	1.7%	0.3%

Poverty & households

	Islip	Lake Ronkonkoma
Poverty rate	5.8%	8.5%
Average household size	2.82	2.72
Mean commute (minutes)	29	29
Median year structure built	1965	1969