County ZIP codes · New York · FIPS 36045
Jefferson County, NY ZIP Codes
Jefferson County, New York has 45 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 43 residential and 2 for PO boxes or a single organization. 38 of the residential ones lie mainly in Jefferson County and 5 mainly in a neighboring county; 12 cross the county line. Median household income ranges from $49,728 in 13642 (Gouverneur) to $101,932 in 13679 (Redwood) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Jefferson County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $62,500 and $81,167.
They carry 42 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 43 residential ZIP codes in Jefferson County
38 ZIP codes lie mainly in Jefferson County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 13601 | Watertown | 36,839 | 262 | $59k | $173k | 94% |
| 13603 | Watertown | 14,136 | 2,553 | $63k | – | 100% |
| 13619 | Carthage | 10,578 | 94 | $63k | $179k | 54% |
| 13605 | Adams | 5,259 | 67 | $70k | $191k | 100% |
| 13637 | Evans Mills | 5,212 | 148 | $57k | $176k | 100% |
| 13624 | Clayton | 4,650 | 73 | $88k | $234k | 100% |
| 13634 | Dexter | 3,570 | 74 | $92k | $226k | 100% |
| 13691 | Theresa | 2,990 | 42 | $80k | $173k | 98% |
| 13656 | La Fargeville | 2,942 | 34 | $73k | $155k | 100% |
| 13612 | Black River | 2,865 | 151 | $86k | $204k | 100% |
| 13606 | Adams Center | 2,468 | 70 | $89k | $204k | 100% |
| 13602 | Fort Drum | 2,440 | 213 | – | – | 100% |
| 13685 | Sackets Harbor | 2,362 | 165 | $80k | $283k | 100% |
| 13673 | Philadelphia | 2,097 | 51 | $81k | $186k | 100% |
| 13607 | Alexandria Bay | 2,020 | 124 | $67k | $176k | 100% |
| 13661 | Mannsville | 1,908 | 42 | $82k | $183k | 96% |
| 13622 | Chaumont | 1,859 | 35 | $81k | $235k | 100% |
| 13618 | Cape Vincent | 1,771 | 36 | $62k | $229k | 100% |
| 13608 | Antwerp | 1,676 | 41 | $74k | $112k | 89% |
| 13616 | Calcium | 1,430 | 257 | $46k | $144k | 100% |
| 13650 | Henderson | 1,236 | 30 | $94k | $209k | 100% |
| 13679 | Redwood | 1,205 | 20 | $102k | $193k | 75% |
| 13682 | Rodman | 854 | 25 | $80k | $229k | 93% |
| 13615 | Brownville | 700 | 1,097 | $102k | $192k | 100% |
| 13693 | Three Mile Bay | 423 | 20 | $72k | $234k | 100% |
| 13659 | Lorraine | 386 | 7 | $63k | $166k | 100% |
| 13628 | Deferiet | 330 | 1,658 | $58k | $130k | 100% |
| 13640 | Wellesley Island | 318 | 26 | $118k | $370k | 100% |
| 13692 | Thousand Island Park | 222 | 758 | $190k | $377k | 100% |
| 13643 | Great Bend | 193 | 4,488 | $101k | – | 100% |
| 13674 | Pierrepont Manor | 178 | 3,423 | – | – | 100% |
| 13638 | Felts Mills | 157 | 195 | $63k | $203k | 100% |
| 13611 | Belleville | 147 | 82 | $70k | $187k | 100% |
| 13651 | Henderson Harbor | 147 | 69 | $117k | $332k | 100% |
| 13636 | Ellisburg | 141 | 42 | $59k | $122k | 100% |
| 13632 | Depauville | 118 | 71 | $133k | – | 100% |
| 13641 | Fishers Landing | 91 | 222 | $62k | $338k | 100% |
| 13675 | Plessis | 54 | 36 | $208k | – | 100% |
Partly in Jefferson County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 13665 | Natural Bridge | 465 | 13 | $51k | $142k | 19% |
| 13626 | Copenhagen | 2,202 | 25 | $65k | $179k | 14% |
| 13642 | Gouverneur | 9,043 | 48 | $50k | $136k | 8% |
| 13083 | Lacona | 1,835 | 31 | $72k | $140k | 2% |
| 13646 | Hammond | 2,546 | 24 | $72k | $155k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
12 ZIP codes of Jefferson County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Jefferson | Elsewhere |
|---|---|---|
| 13601 | 94% | Lewis County 6% |
| 13619 | 54% | Lewis County 46% |
| 13642 | 8% | St. Lawrence County 92% |
| 13691 | 98% | St. Lawrence County 2% |
| 13646 | 1% | St. Lawrence County 99% |
| 13626 | 14% | Lewis County 86% |
| 13661 | 96% | Oswego County 4% |
| 13083 | 2% | Oswego County 99% |
| 13608 | 89% | St. Lawrence County 11% |
| 13679 | 75% | St. Lawrence County 25% |
| 13682 | 93% | Lewis County 7% |
| 13665 | 19% | Lewis County 81% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 13657 | Limerick |
| 13671 | Oxbow |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Jefferson County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Jefferson County's ZIP codes use 2 prefixes: 130 and 136.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.