| Official Name: | Harmar Township, Pennsylvania |
| Settlement Type: | Township |
| Motto: | In God We Trust |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Harmar Twp |
| Coordinates: | 40.54°N -79.8339°W |
| Established Title: | Incorporated |
| Established Date: | 1875 |
| Founder: | Harmar Denny |
| Named For: | Harmar Denny |
| Unit Pref: | imperial |
| Area Total Sq Mi: | 6.4 |
| Area Land Sq Mi: | 6.0 |
| Area Water Sq Mi: | 0.5 |
| Elevation Ft: | 761 |
| Population As Of: | 2020 |
| Population Total: | 3,136 |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Population Density Sq Mi: | auto |
| Postal Code: | 15238, 15049, 15024 |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name1: | Pennsylvania |
| Subdivision Name2: | Allegheny |
| Postal Code Type: | ZIP codes |
| Area Code: | 412 and 724 |
| Blank Name Sec1: | School district |
| Blank Info Sec1: | Allegheny Valley School District |
| Timezone1: | Eastern (EST) |
Harmar Township is a township in Allegheny County, Pennsylvania, United States. It contains the communities of Acmetonia, Harmarville, Harmar Heights, and Chapel Downs. The population was 3,136 at the 2020 census.[1] The township was named after Harmar Denny, a U.S. congressman and son of Ebenezer Denny.[2]
Harmar Township is located at . According to the United States Census Bureau, the township has a total area of, of which is land and, or 7.45%, is water.
Harmar Township is entirely in the Allegheny River drainage basin and contains one undeveloped state park, Allegheny Islands State Park, on three alluvial islands in the Allegheny River.
Deer Creek flows through the township; it joins the Allegheny at Harmar.[3]
The township has six land borders, including Indiana Township to the north, Frazer Township to the northeast, Springdale Township and Cheswick to the east, O'Hara Township to the southwest and Fox Chapel to the west. Bordering the Allegheny River, Harmar runs adjacent with Oakmont to the south (with a direct link via Hulton Bridge) and Plum to the south and southeast.
| 2020 | 53% 1,018 | 44% 855 | 1% 28 | |
| 2016 | 55% 914 | 42% 693 | 4% 52 | |
| 2012 | 54% 810 | 45% 671 | 1% 18 |
At the 2000 census there were 3,242 people, 1,522 households, and 882 families living in the township. The population density was 543.3/mi2. There were 1,637 housing units at an average density of 274.3/mi2. The racial makeup of the township was 97.75% White, 0.68% African American, 0.09% Native American, 0.99% Asian, 0.06% from other races, and 0.43% from two or more races. Hispanic or Latino of any race were 0.56%.[4]
There were 1,522 households, 19.8% had children under the age of 18 living with them, 45.7% were married couples living together, 9.1% had a female householder with no husband present, and 42.0% were non-families. 37.1% of households were made up of individuals, and 13.8% were one person aged 65 or older. The average household size was 2.09 and the average family size was 2.75.
The age distribution was 17.1% under the age of 18, 5.5% from 18 to 24, 28.0% from 25 to 44, 26.9% from 45 to 64, and 22.5% 65 or older. The median age was 45 years. For every 100 females, there were 89.9 males. For every 100 females age 18 and over, there were 87.4 males.
The median household income was $38,625 and the median family income was $50,054. Males had a median income of $35,731 versus $28,455 for females. The per capita income for the township was $24,486. About 6.3% of families and 6.6% of the population were below the poverty line, including 14.8% of those under age 18 and 4.7% of those age 65 or over.