Question: What is the 2010 population of the city that owns the Harrington Regional Airport?

Context paragraphs:
Ta'if Regional Airport: Ta'if Regional Airport (IATA: TIF, ICAO: OETF) is an airport in Ta'if, Saudi Arabia.  Despite its name, it also offers many international flights as well.  The airport is located 30 km to the east of Taif and 70 km from Mecca.  The airport is considered important in Saudi aviation history as it witnessed the first landing of Ibn Saud's plane, founder of the Kingdom.  It was converted to a regional airport in 2009 when GACA allowed international airlines to operate at the airport as the city's population was increasing and to reduce pressure on the three main airports at the time.  Despite being named as a "Regional" airport, the airport actually has international flights destinations in half a dozen countries outside of Saudi Arabia.

Roanoke–Blacksburg Regional Airport: Roanoke–Blacksburg Regional Airport (IATA: ROA, ICAO: KROA, FAA LID: ROA) , also known as Woodrum Field, is a regional airport located three nautical miles (6 km) northwest of the central business district of Roanoke, a city in Roanoke County, Virginia, United States.  It is governed by the five-member Roanoke Regional Airport Commission that includes representatives from both the city and county of Roanoke.  The airport has two runways and over 60 scheduled flights each day.

Crater Lake–Klamath Regional Airport: Crater Lake–Klamath Regional Airport (Klamath Falls Airport) (IATA: LMT, ICAO: KLMT, FAA LID: LMT) is a public use airport in Klamath County, Oregon five miles southeast of Klamath Falls, which owns it.  It is used by general aviation, military aviation and a few airline flights.  In 2013 the Airport changed its name to "Crater Lake-Klamath Regional Airport".

Lea County Regional Airport: Lea County Regional Airport (IATA: HOB, ICAO: KHOB) (Lea County-Hobbs Airport) is four miles (6.4 km) west of Hobbs, in Lea County, New Mexico.  The airport covers 898 acre and has three runways.  It is an FAA certified commercial airport served by United Airlines' affiliate with daily regional flights.  Lea County Regional Airport is the largest of the three airports owned and operated by Lea County Government.  Lea County also owns and operated two general aviation airports in Lovington and Jal, New Mexico.

Herington, Kansas: Herington is a city in Dickinson and Morris counties in the U.S. state of Kansas.  As of the 2010 census, the city population was 2,526.

Elizabeth City Regional Airport: Elizabeth City Regional Airport (IATA: ECG, ICAO: KECG, FAA LID: ECG) is a joint civil-military public and military use airport located three nautical miles (6 km) southeast of the central business district of Elizabeth City, in Pasquotank County, North Carolina, United States.  The airport, on the shore of the Pasquotank River, is also known as Elizabeth City-Pasquotank County Regional Airport or ECG Regional Airport.  It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" facility.

Herington Regional Airport: Herington Regional Airport (ICAO: KHRU, FAA LID: HRU) is a public use airport in Morris County, Kansas, United States.  The airport is owned by the City of Herington and is located seven nautical miles (8 mi, 13 km) northeast of its central business district.  Although the airport is in Morris County, most of Herington is located in Dickinson County.  Previously known as Herington Municipal Airport, the airport is located on the site of the former Herington Army Airfield.  This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" facility.

Susquehanna Area Regional Airport Authority: The Susquehanna Area Regional Airport Authority (SARAA) is the governing authority of Harrisburg International Airport, Capital City Airport, Franklin County Regional Airport and Gettysburg Regional Airport in south-central Pennsylvania.  SARAA was incorporated on September 9, 1997, and officially took over control of HIA and CXY airports from the Commonwealth of Pennsylvania on January 1, 1998.

Waco, Texas: Waco ( ) is a city which is the county seat of McLennan County, Texas, United States.  It is situated along the Brazos River and I-35, halfway between Dallas and Austin.  The city had a 2010 population of 124,805, making it the 22nd-most populous city in the state.  The US Census 2016 population estimate is 134,432 The Waco Metropolitan Statistical Area consists of McLennan and Falls Counties, which had a 2010 population of 234,906.  Falls County was added to the Waco MSA in 2013.  The US Census 2016 population estimate for the Waco MSA is 265,207.

Pensacola International Airport: Pensacola International Airport (IATA: PNS, ICAO: KPNS, FAA LID: PNS) , formerly Pensacola Gulf Coast Regional Airport and Pensacola Regional Airport (Hagler Field), is a public use airport three nautical miles (6 km) northeast of the central business district of Pensacola, in Escambia County, Florida, United States.  It is owned by the City of Pensacola.  Despite the name, this airport does not offer direct international flights.  This airport is one of the five major airports in North Florida, others being: Northwest Florida Beaches International Airport, Destin-Fort Walton Beach Airport Tallahassee International Airport, and Jacksonville International Airport.

Supporting paragraphs: Herington Regional Airport Herington, Kansas
Answer: 2,526