Question: According to the 2010 census what was the population of the county in which The Pinnacles is located?

Context paragraphs:
Morris County, New Jersey: Morris County is a county located in the U.S. state of New Jersey, about 25 mi west of New York City.  According to the 2010 United States Census, the population was 492,276, up from the 470,212 at the 2000 Census, As of the 2016 Census estimate, the county's population was 498,423, making it the state's 10th-most populous county, and marking a 1.2% increase from 2010.  The county is part of the New York Metropolitan Area, and its county seat is Morristown.  The most populous place was Parsippany-Troy Hills Township, with 53,238 residents at the time of the 2010 Census, while Rockaway Township covered 45.55 sqmi , the largest total area of any municipality.

Fayetteville, Arkansas: Fayetteville is the third-largest city in Arkansas and county seat of Washington County.  The city is centrally located within the county and has been home of the University of Arkansas since the institution's founding in 1871.  Fayetteville is on the outskirts of the Boston Mountains, deep within the Ozarks.  Known as Washington until 1829, the city was named after Fayetteville, Tennessee, from which many of the settlers had come.  It was incorporated on November 3, 1836 and was rechartered in 1867.  The four-county Northwest Arkansas Metropolitan Statistical Area is ranked 105th in terms of population in the United States with 463,204 in 2010 according to the United States Census Bureau.  The city had a population of 73,580 at the 2010 Census.  At 1,400 feet of elevation, it is also one of the highest major US cities between the western Great Plains and the Appalachian Mountains.

Cascade County, Montana: Cascade County ("cascade" means "waterfall" in French) is a county located in the U.S. state of Montana.  As of the 2010 census, the population was 81,327, making it the fifth-most populous county in Montana.  Its county seat is Great Falls.

Omaha, Nebraska: Omaha ( ) is the largest city in the state of Nebraska and the county seat of Douglas County.  Omaha is located in the Midwestern United States on the Missouri River, about 10 mi north of the mouth of the Platte River.  Omaha is the anchor of the Omaha-Council Bluffs metropolitan area, which includes Council Bluffs, Iowa, across the Missouri River from Omaha.  According to the 2010 census, Omaha's population was 408,958, making it the nation's 44th-largest city; this had increased to 446,970 as of a 2016 estimate.  Including its suburbs, Omaha formed the 60th-largest metropolitan area in the United States in 2013, with an estimated population of 895,151 residing in eight counties.  The Omaha-Council Bluffs-Fremont, Nebraska-IA Combined Statistical Area is 931,667, according to the U.S. Census Bureau's 2013 estimate.  Nearly 1.3 million people reside within the Greater Omaha area, comprising a 50-mile (80 km) radius of Downtown Omaha, the city's center.

Jordan-Elbridge Central School District: The Jordan-Elbridge Central School District consists of two different villages, Jordan and Elbridge both of which are in Onondaga County, New York which is located in Central New York, USA.  If you are on the outside of the Village of Jordan but in the boundaries of Jordan-Elbridge you are in the outskirts of the Town of Elbridge.  The population as of 2010 according to the U.S. Census Bureau is: the Jordan village total population, 1,368 people; the Elbridge village total population, 1,058 people; and Town of Elbridge, in Onondaga County, New York, total population 5,922 people (as of 2010 Census).

Williams County, North Dakota: Williams County is a county located in the U.S. state of North Dakota.  As of the 2010 census, the population was 22,398.  Its county seat is Williston.  Between 2010 and 2016, according to Census Bureau estimates, it was the second-fastest growing county in the United States, trailing only neighboring McKenzie County, to its south.

The Pinnacles (Montana): The Pinnacles, el.  6545 ft , is a set of mountain peaks within the Big Belt Mountains east of Craig, Montana in Cascade County, Montana.

McKenzie County, North Dakota: McKenzie County is a county located in the U.S. state of North Dakota.  As of the 2010 census, the population was 6,360.  Its county seat is Watford City.  Between 2010 and 2016, according to Census Bureau estimates, it was the fastest growing county in the United States, growing 101.0 percent.  The county lies immediately adjacent to the Williston Micropolitan Statistical Area, although, technically, by Census Bureau definition, is not a part of it.

Mankato, Minnesota: Mankato ( ) is a city in Blue Earth, Nicollet, and Le Sueur counties in the state of Minnesota.  It is the 22nd biggest city in Minnesota.  The population was 41,044 according to 2015 US census estimates, making it the fifth largest city in Minnesota outside of the Minneapolis–Saint Paul metropolitan area.  The county seat of Blue Earth County, it is located along a large bend of the Minnesota River at its confluence with the Blue Earth River.  Mankato is across the Minnesota River from North Mankato.  Mankato and North Mankato have a combined population of over 53,000, according to the 2010 census.  It completely encompasses the town of Skyline.  North of Mankato Regional Airport, a tiny non-contiguous part of the city is located within Le Sueur County.  Most of the city of Mankato is located within Blue Earth County.

Bentonville, Arkansas: Bentonville is the tenth-largest city in Arkansas and the county seat of Benton County.  The city is centrally located in the county with Rogers adjacent to the east.  The city is the headquarters of Walmart, which is the world's largest retailer.  Originally named Osage after the Osage Indians who hunted in the area when white settlers first moved to the area in 1837, the community was renamed to Bentonville in 1906 in honor of New York inventor Linn Boyd Benton, after being first incorporated on April 3, 1873.  It is one of the four main cities in the four-county Northwest Arkansas Metropolitan Statistical Area, which is ranked 109th in terms of population in the United States with 463,204 in 2010 according to the United States Census Bureau.  The city itself had a population of 35,301 at the 2010 Census, with an estimated population of 47,093 in 2016.

Supporting paragraphs: The Pinnacles (Montana) Cascade County, Montana
Answer: 81,327