ZIP Code 11742 - Holtsville New York

ZIP Code 11742 is located in Holtsville New York. Portions of 11742 are also in Holbrook and Brookhaven (town) and Islip (town). 11742 is entirely within Suffolk County. Regionally, it is located in Metro New York City.

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ZIP Code 11742 Quick Stats

ZIP Code NameHoltsville
Primary CountySuffolk County
ZIP Code TypeStandard
Population (2022)13,448
Area Code(s)631 / 934
Current Time
EDT

ZIP Code 11742 Map

11742 Demographics

11742 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in New York based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 11742 is White. The majority race/ethnicity attending public schools in 11742 is White. The current unemployment level in 11742 is 4.3%.

Population13,448
Population Growth Rate-1.61%
Population Density2,747 People per Square Mile
Total Households4,420
Percentage High Income Households7.2%
Median Houshold Income (2021)$115,984
Average Adjusted Gross Income (2020)$84,890
Current Unemployment Rate (February 2024)4.3%
Majority Race/EthnictyWhite - 79.48%
Public School Majority Race/EthnictyWhite - 63.33%

11742 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White11,20779.48%
Black9156.49%
Hispanic1,51710.76%
Asian4623.28%
Native American00%
Hawaiian/Pac. Islander00%

11742 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White1,25265.62%
Black663.46%
Hispanic48825.58%
Asian995.19%
Native American10.05%
Hawaiian/Pac. Islander20.1%

11742 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College6268.01%
Bachelor Degree1,43418.35%
High School Diploma2,34630.02%
No High School Diploma801.02%
GED or Alternate3184.07%
1 or More Years of College1,06413.61%
Associates Degree99912.78%
Masters Degree7559.66%
Professional Degree1682.15%
Doctorate Degree260.33%

11742 Geography

Coordinates40.81046295,-73.04071808
Adjacent ZIP Codes
Cities/Towns in 11742
RegionMetro New York City
Metropolitan/Micropolitan Stat AreaNew York-Newark-Jersey City, NY-NJ-PA
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area5 Square Miles

11742 Politics

US Congressional Districts in 11742
New York State Assembly Districts in 11742
New York State Senate Districts in 11742

11742 Schools

11742 Weather and Climate Data

Plant Hardiness ZoneZone 7a: 0F to 5F
Average First Frost DateOctober 11 - 20
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion84a - Cape Cod and Islands

11742 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)22243139495865645645362843
Avg Max Temp (°F)39414959697883827564534461
Avg Precip (In.)4.393.544.534.334.024.073.284.443.823.854.224.2848.78

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