| City: | Hailesboro, New York |
| County: | Saint Lawrence County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:55:42 PM |
| Population: | 9 [See All] |
| Area Codes: | 315 / 680 |
| Classification: | PO Box |
| Coordinates: | 44.3102, -75.4467 |
| Land Area: | 0.013 sq mi |
| Quick Link: |
Hailesboro isn't quite what the adoption rate suggests. With just 9 residents and 8 households, this tiny St. Lawrence County hamlet maintains 46 PO Boxes. That's an adoption rate of 5.75, which typically signals a cross-border hub or major gateway. But Hailesboro sits inland, far from any international crossing.
The numbers tell a different story about rural mail. The post office serves people who don't live here. Two rural carrier routes (Route R) fan out from this hamlet, bringing mail to surrounding areas without their own delivery infrastructure. The 46 boxes serve farms, camps, and seasonal properties scattered across the region. It's not a border gateway. It's a lifeline for scattered rural populations.
The ZIP contains just 0.013 square miles of land, one of the smallest geographic footprints in New York State. Main Street has the most delivery records, followed by Mill Street, Rapids Isle Road, and Dublin Avenue. These aren't bustling thoroughfares. They're the remnants of what was once a more substantial milling community on the Oswegatchie River. The street layout reflects 19th-century industry that no longer exists.
This is what happens when postal infrastructure outlasts the community it was built for. The post office remains because the service area needs it, even as Hailesboro itself has dwindled to single digits. The classification as a regional hub reflects function, not scale. It's regional by necessity, serving a sparse population across a wide area where alternatives don't exist.
The street names reveal a former milling community built along the Oswegatchie River. Main Street and Mill Street reference the industrial past, while Rapids Isle Road points to the water features that once powered local industry. With just four named streets in 0.013 square miles, this is less a town grid and more a crossroads that lost most of its population but retained its postal function.
ZIP Code 13645 has 9 residents and 8 households (average 1.13 persons per household). The median age is 47.5 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 77.8% male and 22.2% female, which is much higher than the state male share (48.4%), making this a male-majority area. Largest groups are White (100.0%, much higher than the state average of 55.2% and well above the national average of 61.6%) and Black or African American (0.0%, much lower than the state average of 14.8% and well below the national average of 12.4%); Hispanic or Latino residents make up 0.0%, which is much lower than the state average (19.5%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 9Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 692.3 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 8Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 1.13Source: Census DHC |
| Average Family Size: | 9.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | -- | -- | -- | -- |
Median Age: 47.5
Male Median Age: 48.5
Female Median Age: 12.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 |
| Female | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 |
| White: | 9 | 100.00% |
| Black: | 0 | 0% |
| Hispanic:* | 0 | 0% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 9 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 7 | 77.78% | 48.5 years |
| Females: | 2 | 22.22% | 12.5 years |
| Total: | 9 | 100% | 47.5 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
ZIP Code 13645 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 46Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 13645 is located in Saint Lawrence County, New York, within the Massena-Ogdensburg, NY Metropolitan Statistical Area (CBSA 32390) and New York's 21st Congressional District. This Micro area has a population of 0 people, about 0.00% of whom live in ZIP Code 13645. It covers 0.013 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Massena-Ogdensburg, NYSource: Census |
| CBSA Number: | 32390Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.013 sq miSource: Census |
| Water Area: | --Source: 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: | 3631346Source: Census |
| Place Name: | Hailesboro CDP; New YorkSource: Census |
We could not locate which school district 13645 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.
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 March 1, 2026.