Millbrook, New York Zip Codes
📍 Millbrook is in Dutchess County, New York with 1 zip code; the most populous is 12545.
Millbrook is a USPS city name in Dutchess County, New York with a Census population of approximately 4,389 across its ZIP codes. Dutchess County as a whole has 39 ZIP codes in this directory. Below you'll find every zip code serving Millbrook with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Millbrook Zip Codes
Millbrook at a Glance
Millbrook has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 12545, has 4,389 residents.
Millbrook's ZIP has a household income of $77,991 and a home value of $414,800, a price-to-income ratio of 5.3, far above the 2.9 New York ZIP median. Median rent across these ZIPs is $1,207 a month.
58% of households in Millbrook own their home (statewide ZIP median 80%). 41% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 12.8%, above the 9.9% statewide ZIP median. Overall density is about 77 residents per square mile across 57 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 New York ZIP Code Affordability Report.
Millbrook Zip Code Map
Interactive map of Millbrook, New York zip codes. Click any marker for details.