Question: Whats was the population in 2003 of Centralia, the least populated municipality in Pennsylvania, USA?

Context paragraphs:
Bjurholm: Bjurholm is a locality and seat of Bjurholm Municipality in Västerbotten County Sweden with 968 inhabitants in 2010.  It is the second smallest municipal seat in Sweden (Österbymo is smaller) and the seat of the least populated municipality in the country.  A tourist attraction in the region is "Älgens Hus" (The Elk house).  Here visitors can see a tame moose and find out more about elks.

Pennsylvania Route 61: Pennsylvania Route 61 (PA 61) is an 81.801 mi -long state highway in the U.S. state of Pennsylvania.  The route is signed on a north–south direction, from U.S. Route 222 Business in Reading to U.S. Route 11 and U.S. Route 15 in Shamokin Dam.  PA 61 meets up with Pennsylvania Route 54 in Ashland and these highways split just outside Ashland.  PA 54 goes towards Mount Carmel and PA 61 heads towards Centralia.

Pedesina: Pedesina is a "comune" (municipality) in the Province of Sondrio in the Italian region Lombardy, located about 70 km northeast of Milan and about 25 km southwest of Sondrio.  As of 31 December 2008, it had a population of 33, and an area of 6.3 km2 .  Pedesina borders the following municipalities: Bema, Gerola Alta, Premana, Rasura, Rogolo.  It is the least populated municipality in Italy.

Centralia, Pennsylvania: Centralia is a borough and near-ghost town in Columbia County, Pennsylvania, United States.  Its population has dwindled from more than 1,000 residents in 1980 to only 7 in 2013—a result of the coal mine fire which has been burning beneath the borough since 1962.  Centralia, which is part of the Bloomsburg–Berwick metropolitan area, is the least-populated municipality in Pennsylvania.  It is completely surrounded by Conyngham Township.

Jomalig: Jomalig is a fifth class island municipality on the eastern part of the province of Quezon, Philippines.  According to the 2015 census, it has a population of 7,417 persons, making it the least populated municipality in the province.

Candoni, Negros Occidental: In 2007, Candoni was the least populated municipality in Negros Occidental with 0.9% share in the total population of the province.  The town is about 131 km south-south-west of the Provincial Capitol, Bacolod City.

Cabezón de Cameros: Cabezón de Cameros, a municipality in La Rioja, Spain, with a population of only 24 (2005), is one of the 10 least populated municipalities in this region, and one of the 100 least populated of Spain, as a whole.  In 2001, the population was 21, and in 1991, 32.  Cabezón de Cameros ranks fourth in Spain with respect to the male:female population ratio (19:5).  Its surface is 12 km² and its population density, 1,75 p/km².  Its geographic coordinates are: latitude, 42° 11' N, longitude: 2° 31' W, altitude: 923 meters.  The distance from Logroño, the regional capital, is 43 kilometers.

Illán de Vacas: Illán de Vacas is a town in the province of Toledo, in Castile–La Mancha, Spain.  The surface area of the municipality is 9 km².  According to the 2011 census undertaken by the "Instituto Nacional de Estadística", it has a total population of 5 inhabitants, making it the least populated municipality in Spain.

Notre-Dame-de-Bonsecours, Quebec: Notre-Dame-de-Bonsecours is a municipality in the Outaouais region of Quebec, Canada.  It is located along the Ottawa River, about 55 km east of Gatineau.  It was formerly known as Notre-Dame-de-Bon-Secours-Partie-Nord.  It is the least populated municipality in the Papineau Regional County Municipality.

Blounce: Blounce is a very small hamlet in the civil parish of South Warnborough in the Hart district of Hampshire, England.  It lies on the B3349 road in between Alton and Odiham.  The hamlet is only made up of a few cottages and was once a main crossing point between Alton and Odiham.  It has a population of 6, making it one of the least populated settlements in the United Kingdom and the least populated hamlet in Hampshire.

Supporting paragraphs: Pennsylvania Route 61 Centralia, Pennsylvania
Answer: 7