What city is 12870 in?

12870 is a Schroon Lake, NY mailing address. By land area, 3% lies inside Schroon Lake; the rest is outside any Census-defined city or community.

What is the population of 12870?

About 1,756 people (±281), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,652.

What is the median household income in 12870?

$72,628 (±$10,701), 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 12870?

2 USPS carrier routes with 540 residential and 33 business mailboxes (575 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 12870?

The closest, measured center to center: 12872 (3.7 mi), 12858 (4.1 mi), 12808 (6.3 mi), 12860 (8.4 mi, Pottersville), 12857 (9 mi) and 12815 (10.2 mi).

12870 ZIP Code, Schroon Lake, NY

12870 is a ZIP code in Schroon Lake, New York in Essex County. It covers 98 square miles of land. The closest ZIP codes are 12872, 12858 and 12808. 1,756 people live here in 767 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (85%). Median household income is $72,628, below the New York median of $85,974; the median age is 52.3, older than most ZIP codes.

Quick facts

Mailing city: Schroon Lake, NY
County: Essex County
Land area: 98 sq mi
Population: 1,756
Median household income: $72,628
Carrier routes: 2 (540 homes)

Key figures

Measure	Value
Residents	1,756
Households	767
Median household income	$72,628
Income per person	$38,467
Median age	52.3
Homeowners	85.3%
Median home value	$268,700
Median rent	$516
Bachelor's degree or higher	36.0%
Average commute (minutes)	14.8
Households with kids under 18	21.9%
Moved in the past year	4.2%
Below the poverty line	7.3%
Broadband internet	90.2%
Speak a non-English language at home	0.5%

Household income

% of households	Value
<$10K	6.9%
$10–15K	1.8%
$15–25K	6.5%
$25–35K	8.5%
$35–50K	10.6%
$50–75K	21.8%
$75–100K	18.9%
$100–150K	12.3%
$150–200K	7.0%
$200K+	5.7%

Age

% of all residents	Value
<10	9.9%
10–19	8.8%
20–24	2.3%
25–34	11.0%
35–44	14.7%
45–54	6.4%
55–64	18.5%
65–74	17.3%
75+	11.0%

Tenure

% of housing units	Value
Owned, with mortgage	16.9%
Owned outright	19.5%
Rented	6.2%
Vacant	57.4%

Type of building

% of housing units	Value
Detached house	84.6%
Townhome	2.1%
2–4 units	8.0%
5–19 units	0.2%
20+ units	0.8%
Mobile / other	4.3%

Businesses in 12870

65 business establishments with 273 employees (ZIP Codes Business Patterns 2023).

Accommodation and Food Services: 14
Retail Trade: 9
Health Care and Social Assistance: 9
Construction: 8
Other Services (except Public Administration): 7
Administrative and Support and Waste Management and Remediation Services: 3
Arts, Entertainment, and Recreation: 3

EDDM carrier routes

12870 has 2 USPS carrier routes with 540 residential and 33 business mailboxes. Open the EDDM route map.

Carrier routes in 12870

12870 has 2 USPS carrier routes (2 rural (R)) with 540 residential and 33 business mailboxes. Routes range from 37 homes (R002) to 503 homes (R001); the median route has 270 homes. The Census counted 767 households in 12870 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	0
500–749	1
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 12870 for…

Most businesses

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

Route R001 — USPS business mailboxes 32, 503 homes
Route R002 — USPS business mailboxes 1, 37 homes

Select these 2 routes on the route map

Every carrier route in 12870

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	503	32	$67,960	—	—	—
R002	Rural	37	1	$70,294	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12870 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

12872 (3.7 mi)
12858 (4.1 mi)
12808 (6.3 mi)
12860 — Pottersville CDP, NY (8.4 mi)
12857 (9 mi)
12815 (10.2 mi)
12883 — Ticonderoga CDP, NY (10.6 mi)
12836 (11.9 mi)

Areas that include 12870

Where it ranks

Mail every home in 12870

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) 12870, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 12870 in?: 12870 is a Schroon Lake, NY mailing address. By land area, 3% lies inside Schroon Lake; the rest is outside any Census-defined city or community.
What county is 12870 in?: 12870 is in Essex County.
What is the population of 12870?: About 1,756 people (±281), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,652.
What is the median household income in 12870?: $72,628 (±$10,701), 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 12870?: 2 USPS carrier routes with 540 residential and 33 business mailboxes (575 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 12870?: The closest, measured center to center: 12872 (3.7 mi), 12858 (4.1 mi), 12808 (6.3 mi), 12860 (8.4 mi, Pottersville), 12857 (9 mi) and 12815 (10.2 mi).

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