12542 ZIP Code, Marlboro, NY
12542 is a ZIP code in Marlboro, New York — mostly in Ulster County (91% of its land), with smaller parts in Orange County. It covers 14 square miles of land. The closest ZIP codes are 12547, 12512 and 12515. 5,612 people live here in 2,106 households. With about 390 people per square mile it is lightly settled, and most homes are owner-occupied (73%). Median household income is $121,378, above the New York median of $85,974.
Quick facts
- Mailing city: Marlboro, NY
- County: Ulster County
- Land area: 14 sq mi
- Population: 5,612
- Median household income: $121,378
- Carrier routes: 4 (2,305 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 5,612 |
| Households | 2,106 |
| Median household income | $121,378 |
| Income per person | $60,909 |
| Median age | 43.3 |
| Homeowners | 73.0% |
| Median home value | $416,000 |
| Median rent | $1,955 |
| Bachelor's degree or higher | 44.3% |
| Average commute (minutes) | 32.9 |
| Households with kids under 18 | 32.1% |
| Moved in the past year | 10.8% |
| Below the poverty line | 3.8% |
| Broadband internet | 91.1% |
| Speak a non-English language at home | 12.1% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.0% |
| $10–15K | 1.9% |
| $15–25K | 4.7% |
| $25–35K | 5.9% |
| $35–50K | 8.5% |
| $50–75K | 9.6% |
| $75–100K | 7.5% |
| $100–150K | 25.4% |
| $150–200K | 9.9% |
| $200K+ | 26.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.5% |
| 10–19 | 10.1% |
| 20–24 | 3.2% |
| 25–34 | 8.2% |
| 35–44 | 15.3% |
| 45–54 | 9.6% |
| 55–64 | 16.2% |
| 65–74 | 13.2% |
| 75+ | 8.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 47.9% |
| Owned outright | 19.0% |
| Rented | 23.9% |
| Vacant | 9.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 77.6% |
| Townhome | 4.2% |
| 2–4 units | 7.3% |
| 5–19 units | 5.9% |
| 20+ units | 2.2% |
| Mobile / other | 2.9% |
Businesses in 12542
127 business establishments with 679 employees (ZIP Codes Business Patterns 2023).
- Construction: 17
- Retail Trade: 17
- Accommodation and Food Services: 16
- Other Services (except Public Administration): 14
- Professional, Scientific, and Technical Services: 12
- Transportation and Warehousing: 11
- Administrative and Support and Waste Management and Remediation Services: 9
- Finance and Insurance: 7
EDDM carrier routes
12542 has 4 USPS carrier routes with 2,305 residential and 89 business mailboxes. Open the EDDM route map.
Carrier routes in 12542
12542 has 4 USPS carrier routes (4 rural (R)) with 2,305 residential and 89 business mailboxes. Routes range from 339 homes (R050) to 730 homes (R002); the median route has 618 homes. The Census counted 2,106 households in 12542 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 1 |
| 500–749 | 3 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 12542 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R050 — USPS business mailboxes 48, 339 homes
- Route R003 — USPS business mailboxes 30, 585 homes
- Route R001 — USPS business mailboxes 7, 651 homes
- Route R002 — USPS business mailboxes 4, 730 homes
Select these 4 routes on the route map
Every carrier route in 12542
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 651 | 7 | $129,933 | — | — | — |
| R002 | Rural | 730 | 4 | $75,813 | — | — | — |
| R003 | Rural | 585 | 30 | $102,012 | — | — | — |
| R050 | Rural | 339 | 48 | $105,309 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12542 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 12547 — Milton CDP, NY (3.6 mi)
- 12512 (4.9 mi)
- 12515 — Clintondale CDP, NY (5.2 mi)
- 12548 (5.4 mi)
- 12550 — Orange Lake CDP, NY (5.6 mi)
- 12590 — Myers Corner CDP, NY (6.6 mi)
- 12528 — Highland CDP, NY (7 mi)
- 12589 — Wallkill CDP, NY (7.5 mi)
Areas that include 12542
- Marlboro, NY ZIP codes — 1 ZIP code
- Milton (Ulster County), NY ZIP codes — 2 ZIP codes
- Ulster County ZIP codes — 60 ZIP codes
- New York ZIP code data
Where it ranks
- No. 4 of 32: highest median household income in Ulster County
- No. 8 of 33: highest median home value in Ulster County
- No. 4 of 33: highest share of households with children in Ulster County
- No. 9 of 33: highest share of residents who moved in during the past year in Ulster County
Mail every home in 12542
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 12542, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 12542 in?
- 12542 is a Marlboro, NY mailing address. By land area, 35% lies inside Marlboro and 3% lies inside Milton; the rest is outside any Census-defined city or community.
- What county is 12542 in?
- 12542 is mostly in Ulster County (91% of its land), with smaller parts in Orange County.
- What is the population of 12542?
- About 5,612 people (±709), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,726.
- What is the median household income in 12542?
- $121,378 (±$19,293), compared with $85,974 for New York as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 12542?
- 4 USPS carrier routes with 2,305 residential and 89 business mailboxes (2,394 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 12542?
- The closest, measured center to center: 12547 (3.6 mi, Milton), 12512 (4.9 mi), 12515 (5.2 mi, Clintondale), 12548 (5.4 mi), 12550 (5.6 mi, Orange Lake) and 12590 (6.6 mi, Myers Corner).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.