ZIP Code 13603 in Watertown, NY

Data Last Updated: October 1, 2025
City:Watertown, New York
City Alias:Fort Drum
County:Jefferson County
Timezone:Eastern (GMT -05:00)
Local Time:10:38:12 PM
Population:11,808 [See All]
Area Codes:315 / 680
Classification:Standard [Normal Street Delivery]
Coordinates:44.0343, -75.8069
Land Area:5.537 sq mi
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https://www.zip-codes.com/zip-code/13603/zip-code-13603.asp

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Population & Demographics


ZIP Code 13603 has 11,808 residents and 3,859 households (average 3.06 persons per household). The median age is 23.5 years, significantly younger than the state (39.0) and significantly younger than the nation (38.8). The gender split is 52.2% male and 47.8% female, which is higher than the state male share (48.4%), making this a male-majority area. Largest groups are White (63.3%, much higher than the state average of 55.2%) and Hispanic or Latino (16.1%); Hispanic or Latino residents make up 16.1%, which is lower than the state average (19.5%).

Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2023 American Community Survey (ACS) 5-Year Estimates.
2020 Population:11,808Source: Census DHC
2023 ACS Population Estimate:13,973Source: Census ACS
2025 ZC Population Estimate:12,175Source: ZIP-Codes.com
Population Density:2,132.6 people per sq mile
Average Income:$64,028Source: Census ACS
Households:3,859Source: Census DHC
Average House Value:$0Source: Census ACS
Persons Per Household:3.06Source: Census DHC
Average Family Size:2.39Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--9,85410,38610,73410,72710,61210,00510,0949,5899,5019,27412,75314,05013,973
Decennial Census9,760------------------11,808------
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 23.5

Male Median Age: 24.2

Female Median Age: 22.6

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male9336984782689081,05273458028712053151683413
Female9327134793218078396464612359953202564322
Total1,8651,4119575891,7151,8911,3801,0415222191063541147735
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:7,47259.67%
Black:1,66813.32%
Hispanic:*1,90015.17%
Asian:5274.21%
American Indian:1371.09%
Hawaiian:1761.41%
Other:6425.13%
Total:12,522100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:6,16152.18%24.2 years
Females:5,64747.82%22.6 years
Total:11,808100%23.5 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:11,70483.76%
Native, born in PR, Island Areas, or abroad:1,0427.46%
Foreign born, naturalized U.S. citizen:8215.88%
Foreign born, not a U.S. citizen:4068.78%
Total Population:13,973100%
Total Native Population:12,74691.22%
Total Foreign-born Population:1,2278.78%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2023, the Median household income is $64,028, which is considerably lower than the state median ($84,578), is up $26,901 (72.5%) since 2011 and above its 2019 pre-pandemic level by $13,201. Family households earn a median of $73,091 versus $42,639 for nonfamily households (a difference of $30,452). By gender, male median income is $47,798 and female is $41,821, which is far less than the state female median ($63,701), with a current gap of $5,977 that has narrowed from 2011 to 2023. The labor-force participation rate is 147.6%, which is considerably higher than the state rate (63.0%). The unemployment rate is 2.7%, which is markedly below the state rate (6.2%). The largest occupation group is Management (38.8%).

Explore More: Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type2011201220132014201520162017201820192020202120222023
Median Household Income$37,127$40,621$41,430$42,293$41,929$42,989$42,864$45,272$50,827$50,653$53,392$56,853$64,028
Median Family Income$36,561$39,660$40,208$41,342$41,187$42,400$42,906$47,188$51,976$53,856$55,457$58,986$73,091
Median NonFamily Income$37,500$40,865$42,917$50,156$53,448$47,131$41,528$43,191$41,313$34,342$37,614$40,168$42,639
Median Male Income$36,199$37,962$39,006$39,931$40,183$39,327$40,186$42,735$45,505$42,258$43,080$44,793$47,798
Median Female Income$26,438$30,303$27,409$28,333$28,542$36,439$31,974$31,344$35,140$32,688$35,494$37,328$41,821
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:2,72354.90%
Unemployed:1973.97%
Not In Labor Force:2,04041.13%
Total:4,960100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:1,05738.82%
Service:36513.40%
Sales and Office:1,05438.71%
Natural resources, construction, and maintenance:1033.78%
Production, transportation, and material moving:1445.29%
Total Civilian Employed Population:2,723100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2023, the median home value is $0, which is considerably lower than the state median ($403,000), is down $237,500 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. The median gross rent is $1,567, which is markedly greater than the national median ($1,348), is up $265 (20.35%) since 2011 and above its 2019 pre-pandemic level by $182. Of occupied housing, owners make up 3.25% (0.00% with a mortgage, 100.00% free-and-clear) and renters 96.75% - making this ZIP Code less home ownership than the state and higher than national rental averages. The vacancy rate is 4.18%, which is markedly below the national rate (10.43%).

Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$237,500$170,300$0$0$0$156,800$157,700$156,600$0$0$0$0$0
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:470.95%
$500 to $999:571.15%
$1,000 to $1,499:2,11642.83%
$1,500 to $1,999:1,85637.57%
$2,000 to $2,499:75315.24%
$2,500 to $2,999:821.66%
$3,000 or more:290.59%
No Rent:00.00%
Total:4,940100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$1,302$1,317$1,357$1,367$1,353$1,378$1,418$1,413$1,385$1,372$1,432$1,475$1,567
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):00.00%
Owner Occupied (free and clear, no mortgage):1663.25%
Renter Occupied:4,94096.75%
Total Occupied Housing Units:5,106100%

Occupied Housing Units:5,10695.82%
Vacant Housing Units (not graphed):2234.18%
Total Housing Units:5,329100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:2,84653.41%
Multi-Family Units:2,48346.59%
Other Units:00.00%
Total Housing Units:5,329100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2023, 39.20% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.00%). High school or higher is 97.60%, which is markedly above the state rate (87.90%). The uninsured rate is 2.30%, which is far lower than the national rate (8.60%). Private coverage is 95.90%, which is notably higher than the state rate (66.20%). Public coverage is 7.80%, which is markedly below the state rate (41.40%). The share of people in poverty is 7.10%, which is on par with the state rate (9.80%), down 11.70 percentage points since 2011 and below its 2019 pre-pandemic level by 1.50 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (37.77%). College enrollment is 33.83%, which is far higher than the national rate (26.70%), indicating the community is likely a college hub with student-driven housing and services.

Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:390.58%
9th to 12th grade, no diploma:1201.78%
High school graduate (includes equivalency):1,16917.30%
Some college, no degree:2,09230.96%
Associate's degree:69110.22%
Bachelor's degree:2,12331.41%
Graduate or professional degree:5247.75%
Total:6,758100%
High school or higher:6,59997.65%
Bachelor's degree or higher:2,64739.17%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:9,16090.54%
Public Insurance:7427.33%
No Insurance:2152.13%
Total:10,117100%
Has Health Insurance:9,90297.87%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2023)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty18.8%16.3%20.0%14.7%11.4%11.1%12.0%10.0%8.6%8.7%6.4%8.0%7.1%
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:3979.48%
Kindergarten:2836.76%
Elementary school (grades 1-8):1,58237.77%
High school (grades 9-12):50912.15%
College or graduate school:1,41733.83%
Total:4,188100%
Early Childhood:68016.24%
K-12 (Primary & Secondary School):2,37456.69%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 13603 supports both business and residential activity. According to the Business Census (2023), there are 7 business establishments, employing about 48 people with an annual payroll of $1,531,000. USPS data shows 3,979 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:3,979Source: USPS
# Business Mailboxes:1Source: USPS
Total Delivery Receptacles:3,979Source: USPS
Single Family Delivery Units:31Source: USPS
Multi Family Delivery Units:2Source: USPS
# of Businesses:7Source: CBP
1st Quarter Payroll:$336,000Source: CBP
Annual Payroll:$1,531,000Source: CBP
# of Employees:48Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 13603 is located in Jefferson County, New York, within the Watertown-Fort Drum, NY Metropolitan Statistical Area (CBSA 48060) and New York's 21st Congressional District. This Metro area has a population of 116,130 people, about 10.17% of whom live in ZIP Code 13603. It covers 5.537 sq mi of land and a water area of 0.032 sq mi.

CBSA Name:Watertown-Fort Drum, NYSource: Census
CBSA Number:48060Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:116,130Source: Census
MSA:Source: Census
Land Area:5.537 sq miSource: Census
Water Area:0.032 sq miSource: Census
Congressional District:21Source: USPS
Congressional Land Area:15114.76 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:3678608Source: Census
Place Name:Watertown city; New YorkSource: Census

Adjacent & Nearby ZIP Codes


13605 | | 13602

Schools in ZIP Code 13603


We could not locate which school district 13603 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Black River School 160 Leray St
Black River, NY 13612
District: Carthage Central School DistrictNearby
Calcium Primary School 25440 Indian River Dr
Calcium, NY 13616
District: Indian River Central School DistrictNearby
Evans Mills Primary School 8442 S Main St
Evans Mills, NY 13637
District: Indian River Central School DistrictNearby
Starbuck Elementary School 430 E Hoard St
Watertown, NY 13601
District: Watertown City School DistrictNearby
North Elementary School 171 E Hoard St
Watertown, NY 13601
District: Watertown City School DistrictNearby
Faith Fellowship Christian School 131 Moore Ave
Watertown, NY 13601
District: Private SchoolNearby
Immaculate Heart Central Jr/Sr High School 1316 Ives St
Watertown, NY 13601
District: Private SchoolNearby
A 317 W St
Carthage, NY 13619
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 13603


Columbia College - Fort Drum 4300 Camp Hale Road
Ft. Drum, NY 13602-5203
Type: Post Secondary
Jefferson Community College 1220 Coffeen St
Watertown, NY 13601-1897
Type: Post Secondary
Jefferson Lewis Boces-Practical Nursing Program 20104 State Route 3
Watertown, NY 13601-9509
Type: Post Secondary
Center For Instruction, Technology & Innovation 179 County Route 64
Mexico, NY 13114
Type: Post Secondary
St Lawrence University 23 Romoda Drive
Canton, NY 13617
Type: Post Secondary
Suny College Of Technology At Canton 34 Cornell Drive
Canton, NY 13617-1098
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.

  1. U.S. Postal Service [Last Updated: 10/1/2025], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 10/1/2025], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2023 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 10/1/2025], https://nces.ed.gov