City ZIP codes · New York

Keeseville, NY ZIP Codes

3 ZIP codes use the postal name Keeseville, New York (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Keeseville's most populous ZIP code is 12944, with 3,910 people (ACS 2020-2024); 7% of its land is in the city of Keeseville.

ACS2020-24
Census2020
GeoNames2026

Where are Keeseville's ZIP codes?

The 3 residential ZIP codes named Keeseville, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 3 residential ZIP codes of Keeseville

Residential ZIP codes with the postal name Keeseville, NY, largest first (ACS 2020-2024); sort by any column
	County
12944	Essex County	3,910	43	$72k	$142k
12924	Clinton County	333	117	–	$161k
12911	Clinton County	41	26	–	–

Download the 3 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

Which counties do Keeseville's ZIP codes reach?

Keeseville's residential ZIP codes lie in 2 counties: Clinton County (2 ZIP codes mainly there), Essex County (1 ZIP code mainly there).

Which first three digits do Keeseville's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Keeseville starts with 129.

Three-digit prefixes of Keeseville's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Keeseville's
Prefix	Sectional center	Here	All codes
129	Albany, NY (SCF 120)	3	74

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.