The county covers 745 square miles (1,930 km2) of land, with 14 square miles (36 km2) (1.9 percent) of water and 730 square miles (1,900 km2) of land, per the United States Census Bureau.

The county's population was 1,250,578 persons as of the 2020 census with 1676 persons per square mile (647/km2). The county's racial mix was 79.9 percent white, 13.4 percent African American or black, 4.2 percent Asian, 0.2 percent Pacific Islander, and 0.37 percent of people of other races. Allegheny County is recognized for its three major rivers: the Allegheny River, the Monongahela River, and the Ohio River, which merges in Downtown Pittsburgh. McKeesport, 10 miles (16 kilometers) southeast, is where the Youghiogheny River meets the Monongahela River. The riverine systems contain a number of islands. The Mississippi River carries the water from these rivers to the Gulf of Mexico. Even though the county's industrial boom resulted in deforestation, substantial woodland still exists.

Climate/Weather
As you know, it's vital to learn the weather averages before buying or renting a condo in Allegheny County. Fortunately, things aren't too extreme in various cities across this county. Allegheny County, Pennsylvania, receives 39 inches of rain each year, while the average annual rainfall in the United States is 38 inches. In winter, the average annual snowfall is 27 inches. Meanwhile, summer in Allegheny County averages 162 sunny days each year. Then talk of precipitation; the average Allegheny County receives 142 days per year. Once you get a condo in Allegheny County, the precipitation you can look forward to includes rain, snow, sleet, or hail.

Education
The education sector of Allegheny County is an essential part of the county. It is the second-largest employer in the county, and it makes up over half of its total employment. In other words, it provides jobs to more than 15,000 people and generates $1.7 billion in wages and salaries.

The education sector in Allegheny County includes public education, private schools, and higher education institutions. The public school system in Allegheny County is made up of more than 350 schools and enrolls over 125,000 students. Public schools in Allegheny County are well-known for their high-quality education and low tuition rates.

Culture
Allegheny County has a rich history that goes back to before the Civil War era and houses several historic sites such as Fort Pitt Museum and Point State Park. This has led to its present-day culture, food, music, art, and lifestyle.