|— Borough —|
|• Type||Borough Council|
|• Total||0.4 sq mi (1 km2)|
|• Density||1,065.4/sq mi (411.4/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|Area code(s)||570 Exchange: 277|
Middleport is located at .(40.727464, -76.085565)
According to the United States Census Bureau, the borough has a total area of 0.4 square miles (1.0 km2), all of it land.
As of the census of 2000, there were 458 people, 196 households, and 121 families residing in the borough. The population density was 1,065.4 people per square mile (411.2/km²). There were 245 housing units at an average density of 569.9 per square mile (220.0/km²). The racial makeup of the borough was 99.56% White, 0.22% Native American, 0.22% from other races. Hispanic or Latino of any race were 0.22% of the population.
There were 196 households out of which 25.0% had children under the age of 18 living with them, 47.4% were married couples living together, 10.7% had a female householder with no husband present, and 37.8% were non-families. 34.2% of all households were made up of individuals and 20.9% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 3.04.
In the borough the population was spread out with 22.1% under the age of 18, 6.3% from 18 to 24, 28.2% from 25 to 44, 20.1% from 45 to 64, and 23.4% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 94.9 males. For every 100 females age 18 and over, there were 93.0 males.
The median income for a household in the borough was $30,114, and the median income for a family was $34,688. Males had a median income of $30,333 versus $18,750 for females. The per capita income for the borough was $13,931. About 10.3% of families and 9.5% of the population were below the poverty line, including 12.4% of those under age 18 and 12.2% of those age 65 or over.