Jefferson
The stunning Thousand Islands and vast water horizons.
Location Profile Data
Core Stats
- Population
- 116,000
- Established
- 1805
- Seat / Hub
- Watertown
- Coordinates
- 44.0593, -75.9996 ↗
Demographics & Economy
- Median Income
- $60,000
- Home Price
- $185,000
- Median Age
- 32 yrs
- Households
- 44,000
Geography & Climate
- Land Area
- 1,269 mi²
- Water Area
- 588 mi²
- Highest Elevation
- 1,800 ft
- Snowfall
- 112" / yr
Infrastructure & Key Industries
- • Defense (Fort Drum)
- • Tourism
- • Agriculture
- I-81
- US Route 11
- NYS Route 3
- • Jefferson Community College
Welcome to Jefferson County. From its defining natural landscapes to its deep regional history, Jefferson is an essential part of the 315 area code.
Towns & Villages in Jefferson
Adams ->
A historic agricultural town south of Watertown.
Alexandria Bay ->
The heart of the Thousand Islands.
Antioch ->
A tiny, historic crossroads.
Antwerp ->
Rich in mining history along the Indian River.
Black River ->
A residential village named for its turbulent waterway.
Brownville ->
An early 19th-century industrial powerhouse on the Black River.
Cape Vincent ->
Where the St. Lawrence River meets Lake Ontario.
Carthage ->
An enduring manufacturing village on the upper Black River.
Champion ->
A historic high-elevation township.
Clayton ->
A premier destination for the Thousand Islands river life.
Deferiet ->
A classic North Country paper mill village.
Dexter ->
Village located at the mouth of the Black River.
Ellisburg ->
A sprawling agricultural town bordered by Southwick Beach.
Evans Mills ->
A historic village practically synonymous with Fort Drum life.
Henderson ->
A world-class destination for boating on Lake Ontario.
Hounsfield ->
An expansive town embracing Black River Bay.
Le Ray ->
Home to the massive Fort Drum military reservation.
Lorraine ->
A deeply rural town carved by total isolation.
Mannsville ->
A minuscule, charming village on the southern county line.
Pamelia ->
A growing residential town immediately north of Watertown.
Philadelphia ->
A robust agricultural village in the North Country.
Pierrepont Manor ->
An elegant historic hamlet.
Rodman ->
Featuring untouched wilderness and deep gorge cuts.
Rutland ->
A limestone-rich town offering sprawling rural views.
Sackets Harbor ->
Historic military port on Lake Ontario.
Theresa ->
A stunning village built around waterfalls on the Indian River.
Watertown ->
The industrial epicenter of the North Country along the Black River.
Wilna ->
An expansive town hosting Carthage and natural forests.
Worth ->
A true frontier town known for massive snowfall.