How many zip codes are in Clinton County New York?

Clinton County, New York contains 25 zip codes.

What is the county seat of Clinton County?

The county seat of Clinton County, New York is Plattsburgh.

What cities are in Clinton County?

Clinton County USPS city names in this directory include Plattsburgh, Peru, Morrisonville, Keeseville, West Chazy, Dannemora, Champlain, Chazy and 14 more. The county seat is Plattsburgh.

What is the population of Clinton County?

The population of Clinton County, New York is approximately 78,136.

What zip codes are in Clinton County?

Clinton County contains 25 zip codes: 25 standard delivery ZIPs. Browse the table on this page for the complete list.

Clinton County, New York Zip Codes

📍 Clinton County has 25 zip codes with a population of 78,136.

County

Clinton

County Seat

Plattsburgh

Zip Codes

Population

78,136

Clinton County is located in New York with a land area of 1,048 square miles. The county seat is Plattsburgh. Below you'll find all 25 zip codes in Clinton County with population, income and home value, the county's affordability profile, and links to its 22 city pages.

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 Clinton County Zip Codes

ZIP Code	City	County	Population	Median Income	Median Home	Details
12901	Plattsburgh	Clinton	32,012	$59,413	$182,100	View →
12903	Plattsburgh	Clinton	1,740	$76,912	$192,700	View →
12910	Altona	Clinton	1,994	$52,092	$108,300	View →
12911	Keeseville	Clinton	44	—	—	View →
12912	Au Sable Forks	Clinton	1,860	$70,469	$187,400	View →
12918	Cadyville	Clinton	2,762	$93,902	$208,200	View →
12919	Champlain	Clinton	2,789	$77,072	$170,800	View →
12921	Chazy	Clinton	2,771	$100,500	$195,300	View →
12923	Churubusco	Clinton	463	$50,000	$107,300	View →
12924	Keeseville	Clinton	230	—	—	View →
12929	Dannemora	Clinton	2,882	$68,472	$127,600	View →
12933	Ellenburg	Clinton	7	—	—	View →
12934	Ellenburg Center	Clinton	1,147	$76,167	$111,100	View →
12935	Ellenburg Depot	Clinton	1,159	$55,625	$107,300	View →
12952	Lyon Mountain	Clinton	226	—	$41,500	View →
12955	Lyon Mountain	Clinton	494	$73,214	$159,100	View →
12958	Mooers	Clinton	1,650	$58,512	$147,300	View →
12959	Mooers Forks	Clinton	1,790	$68,813	$193,800	View →
12962	Morrisonville	Clinton	5,131	$67,511	$169,000	View →
12972	Peru	Clinton	7,063	$120,822	$195,600	View →
12978	Redford	Clinton	243	$97,470	—	View →
12979	Rouses Point	Clinton	2,542	$47,135	$180,500	View →
12981	Saranac	Clinton	2,233	$73,258	$141,900	View →
12985	Schuyler Falls	Clinton	775	$74,432	$157,700	View →
12992	West Chazy	Clinton	4,129	$78,214	$173,100	View →

Clinton County at a Glance

Residents (ZIPs with data)

78,136

Median household income

$71,842

Median home value

$169,900

Price-to-income ratio

2.2

Median rent

$934

Owner-occupied

82%

Bachelor's degree+

21%

Poverty rate

12.3%

Clinton County has 25 ZIP codes in this directory: 25 standard delivery ZIPs. The 20 ZIPs with published Census housing data cover 78,136 residents, the largest being 12901 (Plattsburgh) with 32,012 people.

The median ZIP in Clinton County has a household income of $71,842 and a home value of $169,900, a price-to-income ratio of 2.2, below the 2.9 New York ZIP median. Affordability ranges from 12934 in Ellenburg Center at a ratio of 1.5 to 12918 in Cadyville, where the median home is $208,200. The highest median income is in 12972 (Peru) at $120,822. Median rent across these ZIPs is $934 a month.

82% of households in the typical Clinton County ZIP own their home (statewide ZIP median 80%). 21% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 12.3%, above the 9.9% statewide ZIP median. Overall density is about 75 residents per square mile across 1,048 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.