15143 ZIP Code, Sewickley, PA
15143 is a ZIP code in Sewickley, Pennsylvania — mostly in Allegheny County (90% of its land), with smaller parts in Beaver County. It covers 37 square miles of land. The closest ZIP codes are 15056, 15003 and 15046. 21,851 people live here in 8,708 households. With about 592 people per square mile it is lightly settled, and most homes are owner-occupied (82%). Median household income is $132,674, well above the Pennsylvania median of $77,971; the median age is 47.0, older than most ZIP codes.
Quick facts
- Mailing city: Sewickley, PA
- County: Allegheny County
- Land area: 37 sq mi
- Population: 21,851
- Median household income: $132,674
- Carrier routes: 18 (9,366 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 21,851 |
| Households | 8,708 |
| Median household income | $132,674 |
| Income per person | $77,913 |
| Median age | 47 |
| Homeowners | 81.6% |
| Median home value | $454,900 |
| Median rent | $1,272 |
| Bachelor's degree or higher | 62.9% |
| Average commute (minutes) | 23.4 |
| Households with kids under 18 | 32.9% |
| Moved in the past year | 11.2% |
| Below the poverty line | 4.1% |
| Broadband internet | 93.4% |
| Speak a non-English language at home | 10.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.1% |
| $10–15K | 1.0% |
| $15–25K | 5.3% |
| $25–35K | 5.0% |
| $35–50K | 6.1% |
| $50–75K | 9.7% |
| $75–100K | 9.8% |
| $100–150K | 15.8% |
| $150–200K | 11.4% |
| $200K+ | 33.9% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.1% |
| 10–19 | 12.3% |
| 20–24 | 3.5% |
| 25–34 | 9.0% |
| 35–44 | 11.8% |
| 45–54 | 14.8% |
| 55–64 | 14.3% |
| 65–74 | 11.3% |
| 75+ | 11.8% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 49.2% |
| Owned outright | 26.4% |
| Rented | 16.1% |
| Vacant | 8.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 70.8% |
| Townhome | 12.3% |
| 2–4 units | 3.4% |
| 5–19 units | 4.6% |
| 20+ units | 7.9% |
| Mobile / other | 1.0% |
Businesses in 15143
763 business establishments with 9,684 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 130
- Health Care and Social Assistance: 105
- Finance and Insurance: 104
- Other Services (except Public Administration): 69
- Retail Trade: 57
- Construction: 52
- Administrative and Support and Waste Management and Remediation Services: 48
- Wholesale Trade: 40
EDDM carrier routes
15143 has 18 USPS carrier routes with 9,366 residential and 671 business mailboxes. Open the EDDM route map.
Carrier routes in 15143
15143 has 18 USPS carrier routes (7 city (C), 11 rural (R)) with 9,366 residential and 671 business mailboxes. Routes range from 298 homes (C004) to 729 homes (R007); the median route has 529 homes. The Census counted 8,708 households in 15143 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 7 |
| 500–749 | 11 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 15143 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C001 — USPS business mailboxes 213, 396 homes
- Route R011 — USPS business mailboxes 116, 535 homes
- Route R012 — USPS business mailboxes 73, 576 homes
- Route C010 — USPS business mailboxes 62, 303 homes
- Route C007 — USPS business mailboxes 45, 404 homes
Select these 5 routes on the route map
Every carrier route in 15143
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 396 | 213 | $80,128 | — | — | — |
| C004 | City | 298 | 3 | $200,001+ | — | — | — |
| C005 | City | 354 | 26 | $96,455 | — | — | — |
| C006 | City | 586 | 16 | $80,128 | — | — | — |
| C007 | City | 404 | 45 | $200,001+ | — | — | — |
| C009 | City | 454 | 15 | $132,904 | — | — | — |
| C010 | City | 303 | 62 | $132,904 | — | — | — |
| R001 | Rural | 611 | 11 | $134,041 | — | — | — |
| R002 | Rural | 657 | 11 | $109,302 | — | — | — |
| R003 | Rural | 522 | 20 | $161,989 | — | — | — |
| R004 | Rural | 677 | 7 | $96,455 | — | — | — |
| R005 | Rural | 502 | 5 | $105,863 | — | — | — |
| R007 | Rural | 729 | 6 | $200,001+ | — | — | — |
| R008 | Rural | 493 | 9 | $178,047 | — | — | — |
| R009 | Rural | 698 | 8 | $178,047 | — | — | — |
| R010 | Rural | 571 | 25 | $132,904 | — | — | — |
| R011 | Rural | 535 | 116 | $161,989 | — | — | — |
| R012 | Rural | 576 | 73 | $200,001+ | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 15143 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
- 15056 — Leetsdale borough, PA (3.6 mi)
- 15003 — Economy borough, PA (4.4 mi)
- 15046 (4.4 mi)
- 15225 (4.6 mi)
- 15081 — South Heights borough, PA (4.7 mi)
- 15108 — Carnot-Moon CDP, PA (5.5 mi)
- 15237 — Franklin Park borough, PA (5.5 mi)
- 15005 — Economy borough, PA (5.6 mi)
Areas that include 15143
- Franklin Park, PA ZIP codes — 3 ZIP codes
- Economy, PA ZIP codes — 4 ZIP codes
- Sewickley, PA ZIP codes — 1 ZIP code
- Edgeworth, PA ZIP codes — 1 ZIP code
- Bell Acres, PA ZIP codes — 1 ZIP code
- Sewickley Heights, PA ZIP codes — 1 ZIP code
- Sewickley Hills, PA ZIP codes — 1 ZIP code
- Glen Osborne, PA ZIP codes — 1 ZIP code
- Glenfield, PA ZIP codes — 1 ZIP code
- Haysville, PA ZIP codes — 1 ZIP code
- Allegheny County ZIP codes — 112 ZIP codes
- Pennsylvania ZIP code data
Where it ranks
- No. 6 of 92: highest median household income in Allegheny County
- No. 9 of 92: highest median home value in Allegheny County
- No. 13 of 92: highest share of owner-occupied homes in Allegheny County
- No. 8 of 92: highest share of households with children in Allegheny County
- No. 18 of 93: highest median age in Allegheny County
Mail every home in 15143
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) 15143, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 15143 in?
- 15143 is a Sewickley, PA mailing address. By land area, 22% lies inside Franklin Park, 20% lies inside Sewickley Heights, 14% lies inside Bell Acres and 10% lies inside Economy; the rest is outside any Census-defined city or community.
- What county is 15143 in?
- 15143 is mostly in Allegheny County (90% of its land), with smaller parts in Beaver County.
- What is the population of 15143?
- About 21,851 people (±971), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 22,329.
- What is the median household income in 15143?
- $132,674 (±$10,768), 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 15143?
- 18 USPS carrier routes with 9,366 residential and 671 business mailboxes (10,038 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 15143?
- The closest, measured center to center: 15056 (3.6 mi, Leetsdale borough, PA), 15003 (4.4 mi, Economy borough, PA), 15046 (4.4 mi), 15225 (4.6 mi), 15081 (4.7 mi, South Heights borough, PA) and 15108 (5.5 mi, Carnot-Moon).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.