12783 ZIP Code, Swan Lake, NY

12783 is a ZIP code in Swan Lake, New York in Sullivan County. It covers 32 square miles of land. The closest ZIP codes are 12749, 12787 and 12734. 1,060 people live here in 568 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (78%). Median household income is $67,778, below the New York median of $85,974; the median age is 60.7, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,060
Households568
Median household income$67,778
Income per person$46,983
Median age60.7
Homeowners78.3%
Median home value$248,200
Median rent$1,397
Bachelor's degree or higher31.3%
Average commute (minutes)32.1
Households with kids under 1812.1%
Moved in the past year6.6%
Below the poverty line21.2%
Broadband internet81.0%
Speak a non-English language at home9.7%

Household income

% of householdsValue
<$10K3.2%
$10–15K4.8%
$15–25K17.1%
$25–35K4.8%
$35–50K12.9%
$50–75K13.4%
$75–100K12.5%
$100–150K16.9%
$150–200K6.3%
$200K+8.3%

Age

% of all residentsValue
<104.4%
10–196.2%
20–241.7%
25–346.9%
35–4410.5%
45–5412.5%
55–6414.3%
65–7426.9%
75+16.6%

Tenure

% of housing unitsValue
Owned, with mortgage8.8%
Owned outright21.9%
Rented8.5%
Vacant60.7%

Type of building

% of housing unitsValue
Detached house80.5%
Townhome0.8%
2–4 units1.7%
5–19 units1.2%
20+ units0.0%
Mobile / other15.8%

Businesses in 12783

32 business establishments with 389 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

12783 has 3 USPS carrier routes with 681 residential and 26 business mailboxes. Open the EDDM route map.

Carrier routes in 12783

12783 has 3 USPS carrier routes (3 rural (R)) with 681 residential and 26 business mailboxes. Routes range from 108 homes (R082) to 445 homes (R081); the median route has 128 homes. The Census counted 568 households in 12783 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4991
500–7490
750–9990
1,000–1,4990
1,500+0

Best routes in 12783 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R081 — USPS business mailboxes 12, 445 homes
  2. Route R084 — USPS business mailboxes 8, 128 homes
  3. Route R082 — USPS business mailboxes 6, 108 homes

Select these 3 routes on the route map

Every carrier route in 12783

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R081Rural44512$66,511———
R082Rural1086$51,581———
R084Rural1288$69,766———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12783 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 12783

Where it ranks

Mail every home in 12783

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) 12783, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 12783 in?
12783 is a Swan Lake, NY mailing address. By land area, 5% lies inside Swan Lake and 1% lies inside Mongaup Valley; the rest is outside any Census-defined city or community.
What county is 12783 in?
12783 is in Sullivan County.
What is the population of 12783?
About 1,060 people (±276), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,388.
What is the median household income in 12783?
$67,778 (±$29,468), 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 12783?
3 USPS carrier routes with 681 residential and 26 business mailboxes (707 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 12783?
The closest, measured center to center: 12749 (3 mi, Kauneonga Lake), 12787 (4 mi), 12734 (4.3 mi, Liberty), 12748 (4.9 mi, Jeffersonville), 12778 (5.4 mi, Smallwood) and 12762 (5.8 mi, Mongaup Valley).

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