The Town FilesSouth Valley Stream, New York
Community in Nassau County · population 6,386 (2020 Census)
- Median home
- $656,800
- Household income
- $145,000
- Jan low / Jul high
- 26° / 84°
- Snow a year
- 26 in
- Tornadoes ≤10 mi since 1950
- 6
- Median age
- 37.1
South Valley Stream is a community of 6,386 people in Nassau County, New York. The median home is worth $656,800, above the typical New York town ($217,700). It ranks more vibrant than 100% of New York towns, more walkable than 94% of New York towns, better transit than 93% of New York towns.
How South Valley Stream ranks
Percentile among New York towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of New York towns.
Homes and cost of living
The median home in South Valley Stream is worth $656,800, above the typical New York town ($217,700). Homes cost about 4.5 times the median household income of $145,000, which is more affordable than 16% of New York towns. Median rent is $1,503 a month. 84.6% of households own their home.
| Housing | South Valley Stream | Typical New York town |
|---|---|---|
| Median home value | $656,800 | $217,700 |
| Median rent | $1,503 | $1,080 |
| Median household income | $145,000 | $80,740 |
| Home value ÷ income | 4.5× | 2.8× |
| Homeownership | 84.6% | 79.5% |
| Median year built | 1956 | 1965 |
| Seasonal / vacation homes | 1.9% | — |
Who lives in South Valley Stream
| People | South Valley Stream | Typical New York town |
|---|---|---|
| Median age | 37.1 | 43.5 |
| Age 65 and over | 22.3% | 20.4% |
| Under 18 | 25.1% | — |
| Bachelor's degree or higher | 56.1% | 30.4% |
| Below the poverty line | 9.8% | 9.3% |
| Veterans | 4.1% | — |
| Born outside the U.S. | 26.3% | — |
| Work from home | 22.1% | 11.1% |
| Average commute | 41.2 min | 26.0 min |
| Homes with broadband | 92.6% | 91.1% |
Weather in South Valley Stream
July highs average 83.6°F and January lows 26.2°F. About 43.3 inches of rain and melted snow fall a year, with 25.9 inches of snow (typical New York town: 62.9 in). Expect about 11 days a year at 90°F or hotter and 74 nights at or below freezing.
Tornadoes, storms and disasters
6 tornadoes have passed within 10 miles of South Valley Stream since 1950, compared with 5 for the typical New York town. 1 rated (E)F2 or stronger. The strongest, an F2, struck on September 7, 1998 about 2.1 miles from the town center. Tornadoes within 10 miles have caused 2 deaths and 13 injuries since 1950. The most recent was on November 13, 2021.
Hail of 1 inch or larger has been reported within 10 miles 31 times; the largest was 3.00 inches on August 1, 2011.
Severe weather in Nassau County since 1996
Nassau County has been included in 31 federal disaster or emergency declarations since 1953, most often for fire, flood, other.
| Declared | Incident | Declaration |
|---|---|---|
| January 30, 2024 | Flood | DR-4755: Severe Storm And Flooding |
| September 5, 2021 | Hurricane | DR-4615: Remnants Of Hurricane Ida |
| September 2, 2021 | Hurricane | EM-3572: Remnants Of Hurricane Ida |
| August 22, 2021 | Hurricane | EM-3565: Hurricane Henri |
| October 2, 2020 | Hurricane | DR-4567: Tropical Storm Isaias |
Jobs and pay in Nassau County
Nassau County had 631,563 jobs in 2024, paying an average of $77,454 a year. Unemployment was 3.1% in 2023; in South Valley Stream itself the ACS puts it at 3.6%.
Public schools in South Valley Stream
29 public schools with 11,957 students, about 13.6 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| SUCCESS ACADEMY CHARTER SCHOOL - ROSEDALE (charter) | K-8 | 1,270 | — |
| PS 223 LYNDON B JOHNSON | PK-5 | 660 | 18.3 |
| PS/MS 138 SUNRISE | PK-8 | 626 | 14.6 |
| MERRICK ACADEMY-QUEENS PUBLIC CHARTER SCHOOL (charter) | K-5 | 596 | 16.1 |
| AUGUST MARTIN HIGH SCHOOL | 9-12 | 584 | 12.4 |
| PS 123 | PK-5 | 545 | 16.5 |
| PREPARATORY ACADEMY FOR WRITERS: A COLLEGE BOARD SCHOOL | 6-12 | 521 | 13.4 |
| JERMAINE L GREEN STEM INSTITUTE OF QUEENS (THE) | PK-5 | 502 | 12.0 |
| EXCELSIOR PREPARATORY HIGH SCHOOL | 9-12 | 481 | 13.0 |
| ROCHDALE EARLY ADVANTAGE CHARTER SCHOOL (charter) | PK-8 | 434 | 14.0 |
| NEW VISIONS CHTR HS-ADV MA/SCI IV (charter) | 9-12 | 426 | 11.2 |
| QUEENS TRANSITION CENTER | 9-12 | 414 | 5.5 |
Towns near South Valley Stream
- Valley Stream, NY0.9 mi · 40,634 people · home $616,100
- Woodmere, NY1.3 mi · 18,669 people · home $975,400
- Hewlett, NY1.6 mi · 7,262 people · home $654,500
- North Valley Stream, NY2.0 mi · 18,197 people · home $613,800
- Cedarhurst, NY2.2 mi · 7,374 people · home $861,900
- Lynbrook, NY2.3 mi · 20,438 people · home $611,900
- Malverne, NY2.8 mi · 8,560 people · home $651,100
- East Rockaway, NY2.8 mi · 10,159 people · home $621,300
South Valley Stream questions
Is South Valley Stream, New York a good place to retire?
On The Town Files lifestyle rankings, South Valley Stream scores better for retirees than 10% of New York towns and quieter than 2%. 22.3% of residents are 65 or older (median age 37.1).
How much does a house cost in South Valley Stream?
The median owner-occupied home in South Valley Stream is valued at $656,800 (Census ACS 2020–2024), against a median household income of $145,000, so homes cost about 4.5 times income. Median rent is $1,503 a month.
What is the weather like in South Valley Stream?
July highs average 83.6°F and January lows 26.2°F (NOAA 1991–2020 normals). It gets about 43.3 inches of precipitation a year and 25.9 inches of snow.
Does South Valley Stream get tornadoes?
6 tornadoes have passed within 10 miles of South Valley Stream since 1950 (NOAA Storm Events); the strongest was a F2 on September 7, 1998. The typical New York town has had 5.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)