12603 ZIP Code, Poughkeepsie, NY

12603 is a ZIP code in Poughkeepsie, New York in Dutchess County. It covers 32 square miles of land. The closest ZIP codes are 12604, 12601 and 12569. 42,304 people live here in 16,919 households, more than in 9 of every 10 New York ZIP codes. At about 1,327 people per square mile it has suburban density, and most homes are owner-occupied (72%). Median household income is $103,538, above the New York median of $85,974.

Quick facts

Key figures

MeasureValue
Residents42,304
Households16,919
Median household income$103,538
Income per person$53,644
Median age41.5
Homeowners71.6%
Median home value$368,900
Median rent$1,727
Bachelor's degree or higher47.5%
Average commute (minutes)28.6
Households with kids under 1828.3%
Moved in the past year9.1%
Below the poverty line7.5%
Broadband internet92.2%
Speak a non-English language at home19.0%

Household income

% of householdsValue
<$10K3.7%
$10–15K2.9%
$15–25K2.3%
$25–35K3.7%
$35–50K10.0%
$50–75K13.5%
$75–100K10.6%
$100–150K22.3%
$150–200K12.5%
$200K+18.3%

Age

% of all residentsValue
<1010.3%
10–1912.0%
20–247.3%
25–3411.1%
35–4413.2%
45–5412.2%
55–6415.7%
65–7410.6%
75+7.6%

Tenure

% of housing unitsValue
Owned, with mortgage47.8%
Owned outright22.7%
Rented27.2%
Vacant2.3%

Type of building

% of housing unitsValue
Detached house64.7%
Townhome3.3%
2–4 units16.3%
5–19 units10.5%
20+ units4.4%
Mobile / other0.8%

Businesses in 12603

967 business establishments with 9,339 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

12603 has 40 USPS carrier routes with 17,131 residential and 1,017 business mailboxes. Open the EDDM route map.

Carrier routes in 12603

12603 has 40 USPS carrier routes (36 city (C), 4 rural (R)) with 17,131 residential and 1,017 business mailboxes. Routes range from 194 homes (C063) to 670 homes (C072); the median route has 412 homes. The Census counted 16,919 households in 12603 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–49927
500–74911
750–9990
1,000–1,4990
1,500+0

Best routes in 12603 for…

Most businesses

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

  1. Route C030 — USPS business mailboxes 159, 201 homes
  2. Route C026 — USPS business mailboxes 158, 281 homes
  3. Route C063 — USPS business mailboxes 129, 194 homes
  4. Route C027 — USPS business mailboxes 77, 480 homes
  5. Route R002 — USPS business mailboxes 59, 508 homes

Select these 5 routes on the route map

Every carrier route in 12603

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C018City4244$68,691———
C020City4876$47,942———
C021City49421$87,888———
C025City2959$93,647———
C026City281158$68,691———
C027City48077$119,260———
C028City32616$91,282———
C030City201159$51,973———
C031City40812$44,183———
C037City38211$51,973———
C038City4063$140,184———
C041City41112$125,935———
C042City4415$116,768———
C044City37049$121,297———
C046City3710$133,754———
C047City59117$88,818———
C048City4486$123,327———
C049City3246$104,524———
C050City4270$116,768———
C051City3890$123,327———
C052City55910$121,297———
C054City5241$54,462———
C055City39024$119,260———
C056City35115$119,260———
C057City3731$133,754———
C059City4010$133,754———
C060City41354$83,448———
C061City2901$143,752———
C062City5500$159,218———
C063City194129$102,037———
C064City40412$133,754———
C065City52315$54,462———
C066City4790$55,681———
C067City51224$104,524———
C072City6701$51,973———
C073City64052$121,297———
R002Rural50859$168,347———
R003Rural57120$93,102———
R005Rural52928$105,836———
R080Rural2940$164,191———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 12603 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 12603

Where it ranks

Mail every home in 12603

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) 12603, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 12603 in?
12603 is a Poughkeepsie, NY mailing address. By land area, 8% lies inside Red Oaks Mill, 5% lies inside Poughkeepsie, 5% lies inside Spackenkill and 2% lies inside Titusville; the rest is outside any Census-defined city or community.
What county is 12603 in?
12603 is in Dutchess County.
What is the population of 12603?
About 42,304 people (±1,443), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 41,470.
What is the median household income in 12603?
$103,538 (±$5,638), 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 12603?
40 USPS carrier routes with 17,131 residential and 1,017 business mailboxes (18,148 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 12603?
The closest, measured center to center: 12604 (1.8 mi, Vassar College), 12601 (3.2 mi, Poughkeepsie), 12569 (5.5 mi, Pleasant Valley), 12590 (5.6 mi, Myers Corner), 12547 (6.4 mi, Milton) and 12528 (7.2 mi, Highland).

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