12304 ZIP Code, Schenectady, NY

12304 is a ZIP code in Schenectady, New York — mostly in Schenectady County (66% of its land), with smaller parts in Albany County. It covers 6.7 square miles of land. The closest ZIP codes are 12303, 12309 and 12307. 22,403 people live here in 9,306 households. At about 3,362 people per square mile it has suburban density, and owners and renters are mixed (60% own). Median household income is $69,235, below the New York median of $85,974.

Quick facts

Key figures

MeasureValue
Residents22,403
Households9,306
Median household income$69,235
Income per person$36,797
Median age41
Homeowners59.6%
Median home value$179,200
Median rent$1,100
Bachelor's degree or higher25.6%
Average commute (minutes)22.8
Households with kids under 1828.3%
Moved in the past year10.9%
Below the poverty line22.1%
Broadband internet86.4%
Speak a non-English language at home12.5%

Household income

% of householdsValue
<$10K11.2%
$10–15K5.8%
$15–25K5.7%
$25–35K5.5%
$35–50K9.0%
$50–75K17.1%
$75–100K14.4%
$100–150K14.9%
$150–200K8.5%
$200K+7.9%

Age

% of all residentsValue
<1012.5%
10–1911.0%
20–244.6%
25–3414.0%
35–4412.3%
45–5412.2%
55–6414.6%
65–7412.1%
75+7.0%

Tenure

% of housing unitsValue
Owned, with mortgage38.8%
Owned outright20.3%
Rented38.9%
Vacant2.0%

Type of building

% of housing unitsValue
Detached house57.6%
Townhome3.5%
2–4 units22.6%
5–19 units8.2%
20+ units5.7%
Mobile / other2.4%

Businesses in 12304

406 business establishments with 5,491 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

12304 has 15 USPS carrier routes with 8,972 residential and 536 business mailboxes. Open the EDDM route map.

Carrier routes in 12304

12304 has 15 USPS carrier routes (15 city (C)) with 8,972 residential and 536 business mailboxes. Routes range from 299 homes (C022) to 1,062 homes (C015); the median route has 569 homes. The Census counted 9,306 households in 12304 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4996
500–7497
750–9991
1,000–1,4991
1,500+0

Best routes in 12304 for…

Most businesses

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

  1. Route C014 — USPS business mailboxes 117, 477 homes
  2. Route C012 — USPS business mailboxes 92, 448 homes
  3. Route C017 — USPS business mailboxes 52, 569 homes
  4. Route C002 — USPS business mailboxes 47, 632 homes
  5. Route C015 — USPS business mailboxes 45, 1,062 homes

Select these 5 routes on the route map

Every carrier route in 12304

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City72040$61,487———
C002City63247$90,670———
C003City88822$48,738———
C006City71739$61,487———
C008City4202$109,865———
C012City44892$84,179———
C013City56012$72,265———
C014City477117$58,990———
C015City1,06245$41,942———
C016City48918$48,738———
C017City56952$98,204———
C019City60915$108,121———
C020City6139$128,221———
C021City4694$48,738———
C022City29922$51,607———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12304 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 12304

Where it ranks

Mail every home in 12304

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) 12304, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 12304 in?
12304 is a Schenectady, NY mailing address. By land area, 46% lies inside Schenectady, 15% lies inside Niskayuna and 5% lies inside Rotterdam; the rest is outside any Census-defined city or community.
What county is 12304 in?
12304 is mostly in Schenectady County (66% of its land), with smaller parts in Albany County.
What is the population of 12304?
About 22,403 people (±1,521), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 21,513.
What is the median household income in 12304?
$69,235 (±$4,536), 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 12304?
15 USPS carrier routes with 8,972 residential and 536 business mailboxes (9,508 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 12304?
The closest, measured center to center: 12303 (2.4 mi, Rotterdam), 12309 (2.4 mi, Niskayuna), 12307 (2.7 mi, Schenectady), 12308 (3.4 mi, Schenectady), 12305 (3.7 mi, Schenectady) and 12148 (4.5 mi).

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