15057 ZIP Code, Mc Donald, PA

15057 is a ZIP code in Mc Donald, Pennsylvania — mostly in Washington County (65% of its land), with smaller parts in Allegheny County. It covers 54 square miles of land. The closest ZIP codes are 15361, 15082 and 15060. 16,583 people live here in 6,141 households. With about 307 people per square mile it is lightly settled, and most homes are owner-occupied (87%). Median household income is $120,821, well above the Pennsylvania median of $77,971.

Quick facts

Key figures

MeasureValue
Residents16,583
Households6,141
Median household income$120,821
Income per person$52,321
Median age40.6
Homeowners87.3%
Median home value$355,400
Median rent$1,031
Bachelor's degree or higher46.7%
Average commute (minutes)28
Households with kids under 1837.9%
Moved in the past year5.0%
Below the poverty line2.9%
Broadband internet93.7%
Speak a non-English language at home10.0%

Household income

% of householdsValue
<$10K1.5%
$10–15K1.2%
$15–25K4.0%
$25–35K5.3%
$35–50K6.5%
$50–75K11.2%
$75–100K11.7%
$100–150K22.0%
$150–200K17.7%
$200K+18.9%

Age

% of all residentsValue
<1014.4%
10–1913.5%
20–243.5%
25–348.5%
35–4417.4%
45–5412.8%
55–6414.3%
65–7410.0%
75+5.7%

Tenure

% of housing unitsValue
Owned, with mortgage51.1%
Owned outright30.7%
Rented11.6%
Vacant6.5%

Type of building

% of housing unitsValue
Detached house83.7%
Townhome5.1%
2–4 units4.8%
5–19 units1.9%
20+ units1.1%
Mobile / other3.4%

Businesses in 15057

248 business establishments with 1,801 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

15057 has 12 USPS carrier routes with 6,964 residential and 135 business mailboxes. Open the EDDM route map.

Carrier routes in 15057

15057 has 12 USPS carrier routes (2 city (C), 10 rural (R)) with 6,964 residential and 135 business mailboxes. Routes range from 381 homes (R010) to 750 homes (R009); the median route has 564 homes. The Census counted 6,141 households in 15057 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4992
500–7499
750–9991
1,000–1,4990
1,500+0

Best routes in 15057 for…

Most businesses

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

  1. Route C002 — USPS business mailboxes 44, 456 homes
  2. Route C001 — USPS business mailboxes 29, 549 homes
  3. Route R010 — USPS business mailboxes 20, 381 homes
  4. Route R003 — USPS business mailboxes 12, 555 homes
  5. Route R001 — USPS business mailboxes 11, 573 homes

Select these 5 routes on the route map

Every carrier route in 15057

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City54929$57,671———
C002City45644$61,055———
R001Rural57311$110,158———
R002Rural5088$124,380———
R003Rural55512$102,650———
R004Rural5151$69,216———
R005Rural6511$77,122———
R006Rural6373$102,650———
R007Rural7110$174,117———
R008Rural6780$174,117———
R009Rural7506$102,650———
R010Rural38120$76,339———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 15057 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 15057

Where it ranks

Mail every home in 15057

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) 15057, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 15057 in?
15057 is a Mc Donald, PA mailing address. By land area, 2% lies inside Sturgeon and 1% lies inside Cecil-Bishop; the rest is outside any Census-defined city or community.
What county is 15057 in?
15057 is mostly in Washington County (65% of its land), with smaller parts in Allegheny County.
What is the population of 15057?
About 16,583 people (±1,352), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,709.
What is the median household income in 15057?
$120,821 (±$10,089), 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 15057?
12 USPS carrier routes with 6,964 residential and 135 business mailboxes (7,099 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 15057?
The closest, measured center to center: 15361 (1.9 mi, Southview), 15082 (2.4 mi, Sturgeon), 15060 (2.5 mi, Midway borough, PA), 15321 (3.9 mi, Cecil-Bishop), 15031 (4.4 mi) and 15350 (4.9 mi, Muse).

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