Cold Spring Harbor Central School District, NY

Original Research by School Decision on Cold Spring Harbor Central School District

Cold Spring Harbor Central School District serves kindergarten through twelfth grade across a small set of schools in Suffolk County. The district encompasses roughly 1,500 students distributed fairly evenly across grade levels, with enrollment concentrated in the elementary through middle bands. The community is predominantly white, with smaller populations of Asian, Hispanic, multiracial, and other students. Free and reduced-price lunch eligibility data were not available, and counts for students with IEPs and English learners were similarly absent from the public record.

State assessment results show consistent strength across tested grades and subjects. In math, proficiency rates hold in the upper eighties and nineties across grades three through seven, with grade four standing out at roughly ninety percent. English language arts proficiency is similarly robust, ranging from high seventies to near ninety percent across the tested span. Science proficiency at grade five reaches into the low seventies; grade eight science data were not reported. This pattern of high performance in elementary and middle grades is grounded in strong assessment participation, generally in the eighties and nineties except where noted.

The district sits in the top quartile among Suffolk County's districts for overall proficiency across tested subjects and grades, a clear strength. Chronic absenteeism is also well below the county median, placing the district again in the top quartile for attendance. Per-pupil current spending falls in the upper range countywide, reflecting a more resource-intensive budget than the median Suffolk district.

The housing market in the district's communities reflects affluence and stability. Home values are substantial, with weighted median values well above the state benchmark, and rental costs are correspondingly high. The market shows inventory in the moderate range for the season with rising new listings, though pending sales have declined year-over-year. Days on market are brisk. Affordability metrics underscore that this is a high-cost area; estimated monthly mortgage payments and rent-to-income ratios are both elevated relative to national norms.

Beginning in fall 2024, the district launched a district-run pre-kindergarten program, a new offering for families who previously had no in-district pre-K option. The program is free except for lunch and transportation costs and enrolled an initial cohort via lottery. This represents a meaningful addition for families considering early education pathways within the district.

The district has approved modest budget and tax-levy increases over recent budget cycles, both supported by voters by wide margins. This trajectory signals fiscal stability and community confidence in district direction, though it does mean ongoing pressure on property tax bills for families in an already high-cost market.

State testing data for eighth-grade science and high school performance were not provided, so the full picture of secondary academic outcomes remains incomplete. A parent may want to look into what pathways, programs, and proficiency measures exist at the high school level directly with the district.

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District Context

Officially reported figures, 2024-25.

Enrollment

1,533

Grades

KG–12

Schools

Student body

Hispanic 6%

Black 0%

White 84%

Asian 5%

Two+ 4%

Am. Indian / AK Native 0%

By economic status

Percent proficient by grade, as reported

Economically disadvantaged

Not disadvantaged

ELA

Gr 8

67%

91%

Math

Gr EOC

—

Schools in this District

4 schools are officially reported under this district.

COLD SPRING HARBOR HIGH SCHOOL

LLOYD HARBOR SCHOOL

WEST SIDE SCHOOL

GOOSEHILL PRIMARY CENTER

Academic Performance

Percent of students meeting or exceeding state standards, by grade.

Mathematics

6 grades reported

88%

Grade 3

92%

Grade 4

90%

Grade 5

87%

Grade 6

85%

Grade 7

90%

Grade 8

English Language Arts

6 grades reported

79%

Grade 3

81%

Grade 4

85%

Grade 5

82%

Grade 6

75%

Grade 7

90%

Grade 8

Science

2 grades reported

73%

Grade 5

Grade 8

Housing & Real Estate

Data as of April 2026 | District-weighted from constituent ZIP codes

Home Values

Typical home value$1.15M

Year-over-year change+1.6%

Range across 4 ZIP codes$904K to $1.7M

vs. state typical2.26x

vs. national typical3.13x

Home value trend (12 months)

ZIP code home values (4 ZIP codes)

ZIP	City	Value	YoY	Weight
11743	Huntington	$904K	+1.3%	56.8%
11724	Cold Spring Harbor	$1.7M	+0.2%	24.6%
11791	Syosset	$1.2M	+4.3%	18.4%
11771	Oyster Bay	$1.3M	+7.8%	0.2%

Rental Market

Typical monthly rent$3,822/mo

Year-over-year change+5.2%

Range across 3 ZIP codes$3,250 to $4,675/mo

Rent trend (12 months)

ZIP code rents (3 ZIP codes)

ZIP	City	Rent/mo	YoY	Weight
11743	Huntington	$3,548	+5.2%	56.8%
11791	Syosset	$4,675	—	18.4%
11771	Oyster Bay	$3,250	—	0.2%

Affordability

Est. monthly mortgage (20% down at 6.48%)$5,812/mo

Home price / national median income13.8x

Annual rent / national median income54.8%

Est. mortgage exceeds rent by$1,990/mo

Market Activity: Suffolk County

Median listing price$949,000

Median listing price YoY+2.0%

Median price per sq ft$507

Median price per sq ft YoY+2.2%

Median days on market47.0 days

Median days on market YoY-12.2%

Active listings3,712

Active listings YoY-0.7%

New listings2,016

New listings YoY+3.7%

Pending listings2,047

Pending listings YoY-34.2%

Hotness: median listing price$987,500

Hotness: median listing price YoY+4.0%

Supply score59.3

Supply score YoY+50.5%

Demand score36.0

Demand score YoY+26.3%

Median listing price (12 months)

Median price per sq ft (12 months)

Median days on market (12 months)

Active listings (12 months)

New listings (12 months)

Pending listings (12 months)

Hotness: median listing price (12 months)

Supply score (12 months)

Demand score (12 months)

Comparison

State typical home value$510,449 (+5.0% YoY)

National typical home value$368,198 (+0.6% YoY)

State ZHVI trend (12 months)

National ZHVI trend (12 months)

Economic Context

30-year fixed mortgage rate6.48%

National unemployment rate4.3%

National median household income$83,730

CPI: Rent of shelter (index)447.05

30-year fixed mortgage rate (12 months)

National unemployment rate (12 months)

National median household income (12 months)

CPI: Rent of shelter (index) (12 months)

Sources: Zillow Home Value Index and Zillow Observed Rent Index (Zillow Group), Realtor.com via Federal Reserve Bank of St. Louis (FRED)

Data Currently Unavailable

Civil Rights Data (CRDC)

This profile is derived exclusively from publicly available federal and state datasets. It may not reflect the most current information available. We encourage parents and families to supplement this data with information published directly on the school’s website, which may include more recent figures, additional programs, or updated enrollment data.