It's about as big as Dublin
It's about nine-tenths as big as Philadelphia
In other words, 78,460 acres is 0.9074 times the size of Philadelphia, and the size of Philadelphia is 1.102 times that amount.(a.k.a. Philly, a.k.a. The City of Brotherly Love) (Pennsylvania)
The largest city in Pennsylvania as of 2009 and at one time the second-largest city in the British Empire, Philadelphia measures 86,460 acres in total area. The city is known as a center of great historical importance and as the one-time capital of the United States.
It's about nine-tenths as big as Detroit
In other words, 78,460 acres is 0.8832 times the size of Detroit, and the size of Detroit is 1.132 times that amount.(Michigan)
The largest city in Michigan as of 2009, Detroit measures 88,830 acres in total area. The city is known for its automotive industry and its popular music legacies in the soul, hip hop, pop, and rhythm & blues genres
It's about one-and-one-fifth times as big as Edinburgh
In other words, 78,460 acres is 1.2 times the size of Edinburgh, and the size of Edinburgh is 0.833 times that amount.(a.k.a. Edinburgh, a.k.a. Dùn Èideann, a.k.a. Edinburgum) (Scotland, United Kingdom)
Edinburgh, Scotland's capital, measures 65,200 acres. Edinburgh Castle, atop Castle Rock, is the centerpiece of the city and has been continuously-occupied for over 1,800 years.
It's about four-fifths as big as The Isle of Wight
In other words, 78,460 acres is 0.818 times the size of The Isle of Wight, and the size of The Isle of Wight is 1.22 times that amount.(England, United Kingdom)
The Isle of Wight, located in the English Channel, just off the English mainland, measures 95,900 acres in total area. The Island hosts the world's largest and longest-running regular regatta — Cowes Week — which has brought over 1,000 yachts to the island each August since 1812.
It's about one-and-two-fifths times as big as Abel Tasman National Park
In other words, 78,460 acres is 1.409 times the size of Abel Tasman National Park, and the size of Abel Tasman National Park is 0.7097 times that amount.(Tasman District, South Island, New Zealand)
New Zealand's Abel Tasman National Park measures about 55,670 acres in total area. The size of the park has increased over the years as donated parcels of land have been added to it, with the last expansion in 2008 adding 1,952 acres.
It's about seven-tenths as big as San Jose
In other words, 78,460 acres is 0.701 times the size of San Jose, and the size of San Jose is 1.43 times that amount.(a.k.a. Capital of Silicon Valley) (California)
The third-largest city in California as of 2009, San Jose measures 112,000 acres in total area. The city is known for its large technology industry.