Irwin borough, Pennsylvania
Irwin borough profile, demographic data, and geographic information.
Irwin borough is a geographic entity located in Westmoreland County, Pennsylvania. As of official census estimates, it has a reported population of 3,759. The land area covers 0.84 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 3,759 | — | 2025 / Census |
| Median Age | 38.1 yrs | ±3.8 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 1,970 | ±241 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 1,970 | ±241 |
| Occupied Housing Units | 1,970 | ±241 |
| Vacant Housing Units | 0 | ±12 |
| Median Home Value | $195,500 | ±$36,378 |
| Median Gross Rent | $1,002 | ±$79 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $59,963 | ±$13,184 |
| Per Capita Income | $40,639 | ±$7,068 |
| Poverty Rate | 13.5% | ±7.4% |
| Population Below Poverty Level | 514 | ±282 |
| Unemployment Rate | 2.7% | ±3% |
| Civilian Labor Force, Employed | 2,238 | ±364 |
| Broadband Internet Rate | 86.8% | ±8.2% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 3,798 (2024)
ID: 187279
|
Municipal | Official Local Government |
Contact: MAYOR
424 MAIN ST, IRWIN PA 15642-3440
|
|
GUS Population: 350,935 (2024)
ID: 212195
|
County | Official County Government |
Contact: FINANCIAL ADMINISTRATION
2 N MAIN ST, STE 107, GREENSBURG PA 15601
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Irwin | KG-05 | Irwin, PA | |
| Regular School Irwin | PK-05 | Irwin, PA | |
| Regular School Irwin | 06-08 | Irwin, PA | |
| Regular School Nearby | KG-05 | Greensburg, PA | |
| Regular School Nearby | 08-12 | Pittsburgh, PA | |
| Regular School Nearby | PK-04 | Homestead, PA | |
| Regular School Nearby | 09-12 | Belle Vernon, PA | |
| Regular School Nearby | 07-08 | Belle Vernon, PA | |
| Regular School Nearby | 06-08 | Pittsburgh, PA | |
| Regular School Nearby | 09-12 | Pittsburgh, PA |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
West Virginia Junior College-United Career Institute
|
College | 0.5 mi away | 8957 Lincoln Highway Suite 101-A, Irwin, PA, 15642-2704 |
7245152440
|
|
NORWIN PUBLIC LIBRARY ASSOCIATION
|
Library | 0.3 mi away | 100 CARUTHERS LANE, IRWIN, PA, 15642 |
(724) 863-4700
|
|
Pennsylvania State University-Penn State Greater Allegheny
|
College | 6.9 mi away | 4000 University Drive, McKeesport, PA, 15132-7644 |
4126759000
|
|
PENN AREA LIBRARY
|
Library | 3.4 mi away | 2001 MUNICIPAL COURT, HARRISON CITY, PA, 15636 |
(724) 744-4414
|
|
Seton Hill University
|
College | 7.6 mi away | 1 Seton Hill Drive, Greensburg, PA, 15601 |
7248342200
|
|
JEANNETTE PUBLIC LIBRARY
|
Library | 4.3 mi away | 500 MAGEE AVENUE, JEANNETTE, PA, 15644 |
(724) 523-5702
|
|
Bella Capelli Academy
|
College Vocational | 8.6 mi away | 151 Wyngate Drive, Monroeville, PA, 15146-2388 |
4123736309
|
|
SEWICKLEY TOWNSHIP PUBLIC LIBRARY
|
Library | 4.3 mi away | 312 SEWICKLEY AVENUE, HERMINIE, PA, 15637 |
(724) 446-9940
|
|
Triangle Tech Inc-Greensburg
|
College | 8.6 mi away | 222 E Pittsburgh St Ste A, Greensburg, PA, 15601-3304 |
7248321050
|
|
TRAFFORD COMMUNITY PUBLIC LIBRARY
|
Library | 5.3 mi away | 416 BRINTON AVENUE, TRAFFORD, PA, 15085 |
(412) 372-5115
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at MURRYSVILLE 2 SW, PA US, located 6.1 miles from Irwin borough. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 37.7° | 21.5° | 29.6° | 3.19" | 10.2" |
| February | 40.6° | 21.9° | 31.3° | 2.75" | 5.6" |
| March | 50.3° | 28.8° | 39.6° | 3.30" | 3.0" |
| April | 63.7° | 38.9° | 51.3° | 3.75" | 0.2" |
| May | 74.1° | 50.8° | 62.5° | 4.08" | 0.0" |
| June | 82.6° | 59.4° | 71.0° | 4.59" | 0.0" |
| July | 85.8° | 63.9° | 74.9° | 4.83" | 0.0" |
| August | 84.1° | 62.3° | 73.2° | 4.18" | 0.0" |
| September | 76.6° | 54.6° | 65.6° | 3.44" | 0.0" |
| October | 64.7° | 43.1° | 53.9° | 3.36" | 0.0" |
| November | 52.0° | 32.9° | 42.5° | 2.88" | 0.7" |
| December | 41.4° | 26.6° | 34.0° | 3.22" | 5.3" |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Irwin borough | Borough | 0.0 mi | — |
| North Irwin borough | Borough | 1.1 mi | — |
| Manor borough | Borough | 2.2 mi | — |
| Adamsburg borough | Borough | 2.5 mi | — |
| Penn borough | Borough | 3.0 mi | — |
| Harrison City CDP | CDP | 3.3 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 4212937208. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.