|• Type||Borough Council|
|• Total||0.1 sq mi (0.3 km2)|
|Elevation||1,473 ft (449 m)|
|• Density||1,812.3/sq mi (699.7/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
Cassandra is located at (40.408989, -78.641040).
According to the United States Census Bureau, the borough has a total area of 0.1 square miles (0.26 km2), all of it land.
As of the census of 2000, there were 136 people, 54 households, and 36 families residing in the borough. The population density was 1,812.3 people per square mile (656.4/km²). There were 57 housing units at an average density of 759.6 per square mile (275.1/km²). The racial makeup of the borough was 100.00% White.
There were 54 households out of which 33.3% had children under the age of 18 living with them, 50.0% were married couples living together, 11.1% had a female householder with no husband present, and 33.3% were non-families. 27.8% of all households were made up of individuals and 18.5% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.03.
In the borough the population was spread out with 22.8% under the age of 18, 2.2% from 18 to 24, 35.3% from 25 to 44, 19.9% from 45 to 64, and 19.9% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 106.1 males. For every 100 females age 18 and over, there were 101.9 males.
The median income for a household in the borough was $28,750, and the median income for a family was $40,833. Males had a median income of $19,063 versus $20,625 for females. The per capita income for the borough was $14,004. There were no families and 8.2% of the population living below the poverty line, including no under eighteens and 11.4% of those over 64.
Central Mainline Sewer Authority
Sewage Treatment in Cassandra Boro is provided by the Central Mainline Sewer Authority. A dedication ceremony was held on August 21, 2006, by local congressman John Murtha Total costs of the system is $10 million and took 14 years. Central-Mainline Serves over 2,000 customers and is named after the "Mainline" of the former Pennsylvania Railroad that proceed through the five municipalities. The railway is now part of the Norfolk Southern system.
Norfolk Southern operates on the former Pennsylvania Railroad mainline between Pittsburgh and Harrisburg. There is a bridge where train watchers can watch trains in a convenient location. This bridge is a single-lane old iron bridge that once carried State Route 53 traffic across until 1936, when the route was bypassed with the current alignment of Route 53. Railfans are most welcome at this location. 
Pennsylvania Route 53 passes through Cassandra on the South end of town.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Census of Population and Housing". U.S. Census Bureau. Retrieved 11 December 2013.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "Incorporated Places and Minor Civil Divisions Datasets: Subcounty Resident Population Estimates: April 1, 2010 to July 1, 2012". Population Estimates. U.S. Census Bureau. Retrieved 11 December 2013.