Newton Falls, New York Zip Codes
📍 Newton Falls is in Saint Lawrence County, New York with 1 zip code; the most populous is 13666.
Newton Falls is a USPS city name in Saint Lawrence County, New York with a Census population of approximately 236 across its ZIP codes. Saint Lawrence County as a whole has 47 ZIP codes in this directory. Below you'll find every zip code serving Newton Falls 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 Newton Falls Zip Codes
Newton Falls at a Glance
Newton Falls has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 13666, has 236 residents.
Newton Falls's ZIP has a household income of $32,679 and a home value of $47,800, a price-to-income ratio of 1.5, below the 2.9 New York ZIP median. Median rent across these ZIPs is $781 a month.
58% of households in Newton Falls own their home (statewide ZIP median 80%). 7% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 36.0%, far above the 9.9% statewide ZIP median. Overall density is about 6 residents per square mile across 40 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.
Newton Falls Zip Code Map
Interactive map of Newton Falls, New York zip codes. Click any marker for details.