Dayton, Pennsylvania

Dayton is a borough in Armstrong County, Pennsylvania, United States. The population was 549 at the 2020 census.

History
The Thomas Marshall House was listed on the National Register of Historic Places in 1976, and is home to the Dayton Area Local History Society.

Geography
Dayton is located at 40.88111°N, -79.24139°W (40.881095, −79.241526) in eastern Armstrong County. Pennsylvania Route 839 leads south 6 mi to Pennsylvania Route 85 near NuMine and north 15 mi to Pennsylvania Route 28 in South Bethlehem.

According to the United States Census Bureau, the borough has a total area of 1.0 km2, all land.

Demographics
As of the 2000 census, there were 543 people, 229 households, and 150 families residing in the borough. The population density was 1,208.1 PD/sqmi. There were 254 housing units at an average density of 565.1 /sqmi. The racial makeup of the borough was 100.00% White.

There were 229 households, out of which 29.7% had children under the age of 18 living with them, 54.6% were married couples living together, 7.9% had a female householder with no husband present, and 34.1% were non-families. 31.9% of all households were made up of individuals, and 17.0% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.97.

The borough median age of 42 years was more than the county median age of 40 years. The distribution by age group was 22.7% under the age of 18, 6.6% from 18 to 24, 26.2% from 25 to 44, 23.0% from 45 to 64, and 21.5% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 94.6 males. For every 100 females age 18 and over, there were 89.2 males.

The median income for a household in the borough was $30,156, and the median income for a family was $36,250. Males had a median income of $26,719 versus $18,333 for females. The per capita income for the borough was $15,036. About 5.7% of families and 7.3% of the population were below the poverty line, including 8.5% of those under age 18 and 9.6% of those age 65 or over.