ZIP code 13603: Watertown, NY
13603 is a ZIP code in Watertown, New York, mainly in Jefferson County, part of the Watertown-Fort Drum, NY metro area. About 14,136 people live here.
- Population
- 14,136
- Median household income
- $62,500
- Typical home value
- —
- Median rent
- $1,627gross, per month
- Median age
- 24
- Homeowners
- 4%of occupied homes
Shaded: ZIP code 13603's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 13603 details
| City | Watertown |
|---|---|
| State | New York |
| County | Jefferson County |
| Metro area | Watertown-Fort Drum, NY |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 5.5 sq mi, plus 0 sq mi of water |
| Population density | 2,552 people per sq mi |
| Bachelor's degree or higher | 36.8% of adults 25+ |
| Average commute | 12.2 minutes |
| Center coordinates | 44.02992, -75.80357 |
Median rent in 13603 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $2,044/mo |
| 2 bedrooms | $1,393/mo |
| 3 bedrooms | $1,811/mo |
| 4 bedrooms | $1,954/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 13603
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 13638 | Felts Mills, NY | 2.6 mi | 157 |
| 13616 | Calcium, NY | 2.7 mi | 1,430 |
| 13602 | Fort Drum, NY | 3.0 mi | 2,440 |
| 13612 | Black River, NY | 3.5 mi | 2,865 |
| 13643 | Great Bend, NY | 4.3 mi | 193 |
| 13637 | Evans Mills, NY | 5.5 mi | 5,212 |
| 13628 | Deferiet, NY | 6.0 mi | 330 |
| 13601 | Watertown, NY | 6.8 mi | 36,839 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
About ZIP code 13603
What city is ZIP code 13603?
ZIP code 13603 is in Watertown, NY, in Jefferson County.
What county is ZIP code 13603 in?
13603 is mainly in Jefferson County, New York.
What is the population of ZIP code 13603?
About 14,136 people live in ZIP code 13603, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 13603 in?
13603 is in Eastern Time (UTC−5). It observes daylight saving time.
What other ZIP codes does Watertown have?
Watertown, NY also uses 13601.