Holtsville, NY ZIP Codes
One ZIP code serves Holtsville, New York: 11742. Together they are home to 13,202 residents in 4,651 households.
Holtsville Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 19,344 |
| Households | 6,480 |
| Median household income | $133,679 |
| Median home value | $520,600 |
| Median age | 38.9 |
| Median rent | $2,342 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 13,202 |
| Households (sum of ZIP codes) | 4,651 |
| Median household income, range across ZIP codes | $125,162 (11742) to $125,162 (11742) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $125,162 |
| Homeowners | 83.6% |
| Households with kids under 18 | 33.2% |
| Moved in the past year | 6.8% |
| Carrier routes in EDDM2GO's route library | 10 routes, 4,675 homes (1 of 1 ZIP codes) |
Every ZIP code in Holtsville
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11742 | Holtsville | 13,202 | 4,651 | $125,162 | $510,200 | 83.6% | 33.2% | 6.8% | 10 | 4,917 | 99% of its land; mailing city |
A ZIP code is listed for Holtsville when at least 10% of its land lies inside the Holtsville Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Holtsville. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Holtsville.
Counties
- Suffolk County — 108 ZIP codes
Price a mailing to Holtsville ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Holtsville, NY?
- 11742. A ZIP code is listed for Holtsville when at least 10% of its land lies inside the Holtsville Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Holtsville.
- What is the population of Holtsville, NY?
- The Census Bureau counts 19,344 residents inside Holtsville Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Holtsville hold 13,202 residents in all.
- What is the median household income in Holtsville, NY?
- $133,679 inside Holtsville Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $125,162 to $125,162.
- How many carrier routes and mailboxes are in Holtsville, NY?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 4,675 residential and 242 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.