| County : | Jefferson County |
| State : | New York (NY) |
| Land Area : | 1,268.58 sq mi |
| Water Area : | 588.63 sq mi |
| Latitude : | 43.9953714 |
| Longitude : | -76.0535218 |
| Population (2010): | 116,229 |
| Population Estimate (2012) : | 117,011 |
| Population Density : | 91.62/sq mi |
| Housing Units (2012) : | 57,966 |
| Median Household Income (2012) : | $46,549 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $54,878 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $129,000 (New York : $295,300, USA : $181,400) |
Jefferson County Cities / Towns
| Adams Village (1,775) | Adams Center (1,568) | Alexandria Bay Village (1,078) |
| Antwerp Village (686) | Belleville (226) | Black River Village (1,348) |
| Brownville Village (1,119) | Calcium (3,491) | Cape Vincent Village (726) |
| Carthage Village (3,747) | Chaumont Village (624) | Clayton Village (1,978) |
| Deferiet Village (294) | Depauville (577) | Dexter Village (1,052) |
| Ellisburg Village (244) | Evans Mills Village (621) | Felts Mills (372) |
| Fishers Landing (89) | Fort Drum (12,955) | Glen Park Village (502) |
| Great Bend (843) | Henderson (224) | Herrings Village (90) |
| La Fargeville (608) | Lorraine (174) | Mannsville Village (354) |
| Natural Bridge (365) | Oxbow (108) | Pamelia Center (264) |
| Philadelphia Village (1,252) | Pierrepont Manor (228) | Plessis (164) |
| Redwood (605) | Rodman (153) | Sackets Harbor Village (1,450) |
| Theresa Village (863) | Thousand Island Park (31) | Three Mile Bay (227) |
| Watertown City (27,023) | West Carthage Village (2,012) |
Jefferson County Zip Codes
| 13083 (1,809) | 13601 (38,158) | 13602 (3,881) |
| 13603 (9,760) | 13605 (4,777) | 13606 (2,716) |
| 13607 (1,822) | 13608 (1,719) | 13612 (2,852) |
| 13615 (1,271) | 13616 (1,880) | 13618 (1,711) |
| 13619 (10,901) | 13622 (2,432) | 13624 (5,457) |
| 13626 (2,267) | 13628 (220) | 13634 (3,984) |
| 13636 (282) | 13637 (4,491) | 13638 (378) |
| 13640 (271) | 13641 (91) | 13642 (10,088) |
| 13643 (19) | 13646 (2,211) | 13650 (1,391) |
| 13651 (127) | 13656 (2,861) | 13659 (593) |
| 13661 (1,646) | 13665 (882) | 13673 (2,249) |
| 13674 (126) | 13675 (160) | 13679 (1,853) |
| 13682 (877) | 13685 (2,272) | 13691 (3,176) |
| 13692 (27) | 13693 (503) |