Find the last 4 digits (ZIP+4) for an address in 13603

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ZIP Code 13603 – Watertown, NY

Watertown, New York · Jefferson County · Eastern time

ZIP code13603
CityWatertown
StateNew York
CountyJefferson County
Population14,136
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area5.54 sq mi
Center (lat, long)44.0299, -75.8036

Area codes in this area

315680

These are the area codes that most often serve ZIP 13603 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

13638 Felts Mills · 2.6 mi13616 Calcium · 2.7 mi13602 Fort Drum · 3 mi13612 Black River · 3.5 mi13643 Great Bend · 4.3 mi13637 Evans Mills · 5.5 mi13628 Deferiet · 6 mi13601 Watertown · 6.8 mi

About ZIP 13603

ZIP code 13603 is assigned to Watertown, New York. It lies in Jefferson County. Its Census area covers about 5.54 square miles of land. The closest neighboring ZIP is 13638 (Felts Mills), about 2.6 miles away.

Every address in 13603 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources