13665 ZIP Code, Natural Bridge, NY

13665 is a ZIP code in Natural Bridge, New York — mostly in Lewis County (81% of its land), with smaller parts in Jefferson County. It covers 36 square miles of land. The closest ZIP codes are 13619, 13648 and 13620. 465 people live here in 225 households, fewer than in most New York ZIP codes. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (87%). Median household income is $51,250, well below the New York median of $85,974; the median age is 51.3, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents465
Households225
Median household income$51,250
Income per person$28,662
Median age51.3
Homeowners86.7%
Median home value$141,800
Median rentnot published
Bachelor's degree or higher3.8%
Average commute (minutes)31
Households with kids under 1818.2%
Moved in the past year1.9%
Below the poverty line22.2%
Broadband internet90.2%
Speak a non-English language at home2.2%

Household income

% of householdsValue
<$10K9.8%
$10–15K1.3%
$15–25K7.6%
$25–35K4.9%
$35–50K21.3%
$50–75K27.6%
$75–100K12.4%
$100–150K12.4%
$150–200K2.7%
$200K+0.0%

Age

% of all residentsValue
<1012.3%
10–1910.5%
20–244.1%
25–346.5%
35–446.7%
45–5418.9%
55–6424.6%
65–7411.6%
75+4.9%

Tenure

% of housing unitsValue
Owned, with mortgage37.6%
Owned outright38.4%
Rented10.8%
Vacant13.3%

Type of building

% of housing unitsValue
Detached house72.1%
Townhome0.0%
2–4 units1.5%
5–19 units0.0%
20+ units0.0%
Mobile / other26.3%

Businesses in 13665

8 business establishments with 12 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

13665 has 1 USPS carrier routes with 299 residential and 1 business mailboxes. Open the EDDM route map.

Carrier routes in 13665

13665 has 1 USPS carrier routes (1 rural (R)) with 299 residential and 1 business mailboxes. Routes range from 299 homes (R001) to 299 homes (R001); the median route has 299 homes. The Census counted 225 households in 13665 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7490
750–9990
1,000–1,4990
1,500+0

Every carrier route in 13665

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural2991$59,226———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 13665 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 13665

Mail every home in 13665

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 13665, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 13665 in?
13665 is a Natural Bridge, NY mailing address. By land area, 4% lies inside Natural Bridge; the rest is outside any Census-defined city or community.
What county is 13665 in?
13665 is mostly in Lewis County (81% of its land), with smaller parts in Jefferson County.
What is the population of 13665?
About 465 people (±154), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 895.
What is the median household income in 13665?
$51,250 (±$12,544), compared with $85,974 for New York as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 13665?
1 USPS carrier routes with 299 residential and 1 business mailboxes (300 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 13665?
The closest, measured center to center: 13619 (9.3 mi, Great Bend), 13648 (9.6 mi), 13620 (9.7 mi, Castorland), 13327 (10 mi, Croghan), 13305 (10.6 mi) and 13628 (12.4 mi, Deferiet).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.