12578 ZIP Code, Salt Point, NY

12578 is a ZIP code in Salt Point, New York in Dutchess County. It covers 14 square miles of land. The closest ZIP codes are 12538, 12569 and 12514. 2,249 people live here in 885 households. With about 156 people per square mile it is lightly settled, and most homes are owner-occupied (81%). Median household income is $108,194, above the New York median of $85,974; the median age is 47.9, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents2,249
Households885
Median household income$108,194
Income per person$71,395
Median age47.9
Homeowners81.0%
Median home value$372,800
Median rent$1,658
Bachelor's degree or higher37.5%
Average commute (minutes)35.4
Households with kids under 1824.3%
Moved in the past year4.1%
Below the poverty line8.7%
Broadband internet93.6%
Speak a non-English language at home10.7%

Household income

% of householdsValue
<$10K0.3%
$10–15K0.0%
$15–25K2.5%
$25–35K11.2%
$35–50K8.1%
$50–75K17.2%
$75–100K3.6%
$100–150K19.0%
$150–200K11.3%
$200K+26.8%

Age

% of all residentsValue
<107.3%
10–1911.5%
20–244.8%
25–3411.7%
35–4411.4%
45–5412.4%
55–6419.7%
65–7414.2%
75+6.8%

Tenure

% of housing unitsValue
Owned, with mortgage47.3%
Owned outright28.1%
Rented17.7%
Vacant6.9%

Type of building

% of housing unitsValue
Detached house97.5%
Townhome0.0%
2–4 units1.6%
5–19 units0.0%
20+ units0.0%
Mobile / other0.9%

Businesses in 12578

67 business establishments with 509 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

12578 has 2 USPS carrier routes with 884 residential and 46 business mailboxes. Open the EDDM route map.

Carrier routes in 12578

12578 has 2 USPS carrier routes (2 rural (R)) with 884 residential and 46 business mailboxes. Routes range from 437 homes (R089) to 447 homes (R088); the median route has 442 homes. The Census counted 885 households in 12578 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4992
500–7490
750–9990
1,000–1,4990
1,500+0

Best routes in 12578 for…

Most businesses

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

  1. Route R088 — USPS business mailboxes 39, 447 homes
  2. Route R089 — USPS business mailboxes 7, 437 homes

Select these 2 routes on the route map

Every carrier route in 12578

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R088Rural44739$122,670———
R089Rural4377$84,039———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12578 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 12578

Where it ranks

Mail every home in 12578

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) 12578, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 12578 in?
12578 is a Salt Point, NY mailing address. By land area, 6% lies inside Salt Point; the rest is outside any Census-defined city or community.
What county is 12578 in?
12578 is in Dutchess County.
What is the population of 12578?
About 2,249 people (±405), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,298.
What is the median household income in 12578?
$108,194 (±$41,716), 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 12578?
2 USPS carrier routes with 884 residential and 46 business mailboxes (931 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 12578?
The closest, measured center to center: 12538 (5 mi, Haviland), 12569 (5 mi, Pleasant Valley), 12514 (5.2 mi), 12580 (5.5 mi, Staatsburg), 12545 (6.3 mi, Millbrook) and 12585 (7.8 mi).

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