| Official Name: | North Irwin, Pennsylvania |
| Settlement Type: | Borough |
| Pushpin Map: | Pennsylvania |
| Pushpin Label Position: | right |
| Subdivision Name: | United States |
| Government Type: | Borough Council |
| Leader Title: | Mayor |
| Established Title: | Settled |
| Established Title1: | Incorporated |
| Established Date1: | December 29, 1894 |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.52 |
| Area Land Km2: | 0.52 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.20 |
| Area Land Sq Mi: | 0.20 |
| Area Water Sq Mi: | 0.00 |
| Population Total: | 823 |
| Population Density Km2: | 1571.23 |
| Population Density Sq Mi: | 4074.26 |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 40.3381°N -79.7108°W |
| Elevation Ft: | 1010 |
| Postal Code: | 15642 |
| Blank Info: | 42-55136 |
North Irwin is a borough in Westmoreland County, Pennsylvania, United States. The population was 846 at the time of the 2010 census.
North Irwin is located at 40.3381°N -79.7108°W (40.338119, -79.710966).[2]
According to the United States Census Bureau, the borough has a total area of 0.2sqmi, all of it land.
As of the census of 2000, there were 879 people, 381 households, and 243 families living in the borough.
The population density was 4307.2sp=usNaNsp=us. There were 393 housing units at an average density of 1925.8/mi2.
The racial makeup of the borough was 98.29% White, 0.11% African American, 0.46% Native American, and 1.14% from two or more races. Hispanic or Latino of any race were 0.23% of the population.
There were 381 households, out of which 28.6% had children under the age of eighteen living with them; 50.9% were married couples living together, 9.7% had a female householder with no husband present, and 36.2% were non-families. 33.3% of all households were made up of individuals, and 13.9% had someone living alone who was 65 years of age or older.
The average household size was 2.31 and the average family size was 2.96.
In the borough, the population was spread out, with 22.5% under the age of eighteen, 8.1% from eighteen to twenty-four, 30.8% from twenty-five to forty-four, 22.5% from forty-five to sixty-four, and 16.0% who were sixty-five years of age or older. The median age was thirty-nine years.
For every one hundred females, there were 94.0 males. For every one hundred females aged eighteen and over, there were 95.1 males.
The median income for a household in the borough was $33,750, and the median income for a family was $40,217. Males had a median income of $29,318 versus $19,881 for females.
The per capita income for the borough was $15,665.
Roughly 4.8% of families and 5.8% of the population were living below the poverty line, including 6.0% of those who were under the age of eighteen and 9.4% of those aged sixty-five or over.