15656 ZIP Code, Leechburg, PA

15656 is a ZIP code in Leechburg, Pennsylvania — mostly in Westmoreland County (57% of its land), with smaller parts in Armstrong County. It covers 32 square miles of land. The closest ZIP codes are 15641, 15682 and 15690. 9,506 people live here in 4,160 households. With about 298 people per square mile it is lightly settled, and most homes are owner-occupied (80%). Median household income is $68,311, below the Pennsylvania median of $77,971; the median age is 48.4, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents9,506
Households4,160
Median household income$68,311
Income per person$37,449
Median age48.4
Homeowners79.7%
Median home value$162,600
Median rent$808
Bachelor's degree or higher21.3%
Average commute (minutes)30.4
Households with kids under 1827.8%
Moved in the past year6.2%
Below the poverty line10.7%
Broadband internet90.5%
Speak a non-English language at home2.5%

Household income

% of householdsValue
<$10K5.5%
$10–15K4.6%
$15–25K4.6%
$25–35K7.1%
$35–50K15.2%
$50–75K16.1%
$75–100K12.5%
$100–150K21.1%
$150–200K9.4%
$200K+3.8%

Age

% of all residentsValue
<108.7%
10–1912.0%
20–243.8%
25–3410.4%
35–4411.2%
45–5415.0%
55–6415.9%
65–7415.5%
75+7.5%

Tenure

% of housing unitsValue
Owned, with mortgage40.5%
Owned outright31.9%
Rented17.4%
Vacant10.1%

Type of building

% of housing unitsValue
Detached house82.7%
Townhome2.7%
2–4 units7.0%
5–19 units1.1%
20+ units1.4%
Mobile / other5.2%

Businesses in 15656

204 business establishments with 2,340 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

15656 has 9 USPS carrier routes with 4,390 residential and 248 business mailboxes. Open the EDDM route map.

Carrier routes in 15656

15656 has 9 USPS carrier routes (2 city (C), 7 rural (R)) with 4,390 residential and 248 business mailboxes. Routes range from 300 homes (R007) to 576 homes (R004); the median route has 501 homes. The Census counted 4,160 households in 15656 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4994
500–7495
750–9990
1,000–1,4990
1,500+0

Best routes in 15656 for…

Most businesses

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

  1. Route C001 — USPS business mailboxes 62, 491 homes
  2. Route R005 — USPS business mailboxes 60, 480 homes
  3. Route R006 — USPS business mailboxes 40, 512 homes
  4. Route C002 — USPS business mailboxes 31, 497 homes
  5. Route R002 — USPS business mailboxes 20, 501 homes

Select these 5 routes on the route map

Every carrier route in 15656

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City49162$50,522———
C002City49731$56,773———
R001Rural51715$85,620———
R002Rural50120$122,919———
R003Rural51612$122,919———
R004Rural5764$75,252———
R005Rural48060$73,586———
R006Rural51240$122,919———
R007Rural3004$85,495———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 15656 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 15656

Where it ranks

Mail every home in 15656

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) 15656, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 15656 in?
15656 is a Leechburg, PA mailing address. By land area, 3% lies inside West Leechburg and 1% lies inside Leechburg; the rest is outside any Census-defined city or community.
What county is 15656 in?
15656 is mostly in Westmoreland County (57% of its land), with smaller parts in Armstrong County.
What is the population of 15656?
About 9,506 people (±572), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,827.
What is the median household income in 15656?
$68,311 (±$5,096), compared with $77,971 for Pennsylvania as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 15656?
9 USPS carrier routes with 4,390 residential and 248 business mailboxes (4,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 15656?
The closest, measured center to center: 15641 (1.7 mi, Hyde Park borough, PA), 15682 (2.7 mi), 15690 (3.6 mi, Vandergrift borough, PA), 15629 (4.2 mi, East Vandergrift borough, PA), 15673 (4.6 mi, North Apollo borough, PA) and 16229 (5.3 mi, Freeport borough, PA).

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