PlainZIP

Wellesley Island, NY · standard

ZIP Code 13640

Jefferson County, New York - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

271
9/sq mi
$118,026
Median income
$370,200
Median home value
72.1%
Bachelor's or higher

The verdict

Wellesley Island pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 10%
household income, US ZIPs
Top 24%
home value, US ZIPs
9
people per sq mi
100%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 13640 against every reporting US ZIP.

ZIP code 13640 is a sparsely populated ZIP (a standard USPS delivery area) in Wellesley Island, Jefferson County, New York, home to just 271 residents across 31.9 square miles, a density of 9 people per square mile, in the New York time zone.

ZIP 13640 skews affluent, with a median household income of $118,026 (28% above the New York average), while per-capita income is $53,301. Poverty here runs at 6.1%, with unemployment measured at 21.7%. Median home value sits at $370,200 (2% below the state average), median rent at - a month, and owner-occupancy at 100.0%.

This is a highly-educated ZIP: 72.1% of adults hold a bachelor's degree or higher, the median age is 66.2, and the average commute is -. To put 13640 in local context, 6 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Jefferson County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 13640

Top 5 sectors by establishment count in Wellesley Island, NY

Which industries have the most business establishments in ZIP 13640.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 13640, Wellesley Island, NY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

271

Population

31.9

Area (sq mi)

9

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 13640?

66.2

Median Age

45.6%

Male

54.4%

Female

1.3%

Foreign-Born

White 100.0%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 2.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$118,026

Median Household Income

+28% vs state

$53,301

Per Capita Income

6.1%

Poverty Rate

21.7%

Unemployment Rate

How ZIP 13640 ranks nationally

Wellesley Island, NY household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$118,026 Top 10% higher than 90% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 89.3%
Bachelor's Degree or Higher 72.1%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

754

Total Housing Units

156

Occupied Units

598

Vacant Units

2.04

Avg Household Size

Occupancy Type

Owner 100.0%
Renter 0.0%

$370,200

Median Home Value

-2% vs state

1982

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 21 business establishments in ZIP 13640, employing approximately 50 people with a combined annual payroll of $3,732,000.

21

Businesses

50

Employees

$3.7M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Administrative and support and waste management and remediation services 4 19.1%
Arts, entertainment, and recreation 4 19.1%
Construction 3 14.3%
Real estate and rental and leasing 3 14.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 13640 vs 13641 →

ZIP 13640 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 13640 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 13640 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 13640 ranks #3 of 7 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
13641 Fishers Landing, NY 91 3.3 mi
13692 Thousand Island Park, NY 27 2.9 mi
13607 Alexandria Bay, NY 1,822 3.6 mi
13656 La Fargeville, NY 2,861 9.3 mi
13675 Plessis, NY 160 7.7 mi
13624 Clayton, NY 5,457 9.2 mi

More ZIP Codes in Jefferson County

13601 standard
Watertown, NY
Pop: 38,158
13619 standard
Carthage, NY
Pop: 10,901
13603 standard
Watertown, NY
Pop: 9,760
13624 standard
Clayton, NY
Pop: 5,457
13605 standard
Adams, NY
Pop: 4,777
13637 standard
Evans Mills, NY
Pop: 4,491

Related Areas

Jefferson County Wellesley Island, NY New York

Frequently Asked Questions

What county is ZIP code 13640 in? ▼
ZIP code 13640 (Wellesley Island) is located in Jefferson County, New York. Jefferson County contains multiple ZIP codes, see the full list at /counties/jefferson-ny.
What is the population of ZIP code 13640? ▼
ZIP code 13640 in Wellesley Island, NY has a population of 271 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 13640? ▼
The median household income in ZIP 13640 is $118,026, which is 55% above the national average of $76,288.
What is the average home value in ZIP 13640? ▼
The median home value in ZIP 13640 is $370,200, which is 33% above the national average of $278,155.
What is the demographic makeup of ZIP 13640? ▼
The largest racial group in ZIP 13640 is White at 100.0%. Hispanic or Latino residents make up 2.8% of the population.
How many businesses are in ZIP code 13640? ▼
ZIP code 13640 has 21 business establishments employing approximately 50 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 13640? ▼
The top industries by establishment count in ZIP 13640 are: Administrative and support and waste management and remediation services (4), Arts, entertainment, and recreation (4), Construction (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 13640? ▼
In ZIP code 13640, 89.3% of residents aged 25+ have a high school diploma or higher, and 72.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 13640? ▼
The poverty rate in ZIP code 13640 is 6.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.