Residential delivery area · New York
ZIP Code 12542: Marlboro, NY
ZIP code 12542 uses the postal name Marlboro, New York and lies mostly in Ulster County (91% of its land) with the rest in Orange County (Census 2020 ZIP-county file). About 5,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $121,378 (Census Bureau, ACS 2020-2024). By Census place, 35% of its land lies in Marlboro (a census-designated place), and 3% in smaller places; 63% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Marlboro · its only residential ZIP
- County
- Ulster County (91%); Orange County (9%)
- Census places
- Marlboro census-designated place
- Metro area
- Kingston, NY
- House district
- NY-18 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 14.4 sq mi · 390 people per sq mi
Where is ZIP code 12542?
12542 centers on 41.614°, -74.015° and covers 14.4 square miles of land plus 0.2 of water. It borders 3 ZIP codes: 12547, 12550, 12589.
The map draws ZIP code areas only. For the streets inside 12542, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 12542 compare with the rest of Ulster County?
| Measure | 12542 | In Ulster County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 5,612 | 8th of 62 | 690th of 1,826 |
| Median household income | $121k | 1st of 21 | 226th of 1,081 |
| Median home value | $416k | 7th of 26 | 435th of 1,172 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 70% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 12542?
The 2020 Census counted 5,726 people in 12542; the ACS, which samples households over 2020-2024, estimates 5,612. Between the 2010 and 2020 censuses its population fell 3.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 5,612±709 (90% margin)
- 2020 Census count
- 5,726−3.2% since 2010 (5,913)
- Households
- 2,106
- Median age
- 43.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 12542?
Of the 5,612 people the ACS estimates in 12542, 24.5% are under 18 and 21.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.3%), then Hispanic or Latino (12.1%).
- Under 1824.5%
- 18 to 6453.6%
- 65 and older21.9%
- White, not Hispanic72.3%
- Hispanic or Latino12.1%
- Black, not Hispanic8.6%
- Other or two or more6.4%
- Asian, not Hispanic0.6%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 12542 earn?
Median household income is $121,378 (ACS 2020-2024), the highest of the 21 ranked ZIP codes in Ulster County. It is not measurably different from 2015-2019 ($104,021 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $121,378±$19,293
- Income per person
- $60,909
- Below the poverty line
- 3.8%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 44.3%
- Adjusted gross income per tax return, 2022
- $91,9863,120 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 12542?
FHFA's house price index for 12542, built from repeat sales and appraisals of the same homes, rose 96% from 2015 to 2025 and rose 67% from 2020 to 2025, and moved +8.8% in 2025.
- Median home value (owners' estimate)
- $416,000
- Median gross rent
- $1,955
- Homes owned by their occupants
- 73.0%
- Housing units
- 2,324
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 12542?
127 business establishments had a location in this ZIP code in 2023, 9 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction17
- Retail trade17
- Accommodation and food services16
- Other services (except public administration)14
- Professional, scientific, and technical services12
- Transportation and warehousing11
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 12542?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 12547 | Milton | 3,144 | $89k | 3.6 mi |
| 12550 | Newburgh | 55,152 | $86k | 5.6 mi |
| 12589 | Wallkill | 18,646 | $121k | 7.5 mi |
| 12512 | Chelsea | 194 | $99k | 4.9 mi (near) |
| 12515 | Clintondale | 1,492 | $104k | 5.2 mi (near) |
| 12548 | Modena | 1,064 | $132k | 5.4 mi (near) |
| 12590 | Wappingers Falls | 35,712 | $102k | 6.6 mi (near) |
| 12528 | Highland | 13,827 | $93k | 7.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.