Question: Waltham Windmill is a six-sailed windmill located in a village that had how many inhabitants in 2011 ?

Context paragraphs:
Annemie: The Annemie is a windmill located on the Boschdijk 1006 in Eindhoven, in the province of North Brabant, Netherlands.  Build in 1891 on an artificial hill, the windmill functioned as gristmill.  The mill was built as a tower mill and its sails have a span of 25 m .  The mill is a national monument (nr 14637) since 15 August 1972.

Ballycopeland Windmill: Ballycopeland Windmill is a functioning windmill located one mile west of Millisle, County Down, Northern Ireland.  It is managed by The Historic Environment Division of The Department for Communities and is open to the public.  It is known in Irish as "Muileann gaoithe Bhaile Chóplainn" and in Ulster-Scots as "Ballycopelann Wun-mäll".

Monkton Windmill, Ayrshire: The Monkton Windmill, or Monkton Dovecote, was originally an early 18th century vaulted tower windmill located on the outskirts of the village of Monkton on the site of an Iron Age hillfort in South Ayrshire, Scotland.  It was later converted into a dovecote and stood on the lands of the old Orangefield Estate.

Aan de Pegstukken: Aan de Pegstukken (English: "At the Pegstukken") is a windmill located on De Pegstukken 27 in Schijndel, North Brabant, Netherlands.  Built in 1845 on an artificial hill, the windmill functioned as a gristmill.  The mill was built as a tower mill and its sails have a span of 25.25 m .  The mill is a national monument (nr 33574) since 19 September 1973.  The name of the mill comes from the street it is located on.

Waltham, Lincolnshire: Waltham is a village and civil parish in North East Lincolnshire, England.  It is geographically 4 mi south-west from Grimsby and is close to the villages of Scartho, Brigsley, Barnoldby-le-Beck, and Bradley.  Less than 2 mi to the north-east is the village of New Waltham.  According to the 2001 Census, Waltham had a population of 6,420, reducing slightly to 6,413 at the 2011 Census.

Op de Vrouweheide: Op de Vrouweheide (English: "On the Vrouweheide") is a windmill located on the Vrouwenheide just south of Ubachsberg, Voerendaal, in the Dutch province of Limburg.  Build in 1858 as a tower mill, on an artificial hill, the windmill functioned as gristmill.  The mill is a national monument (nr 37893) since 17 January 1967.

Metheringham Windmill: Metheringham Windmill, locally known as "The Old Meg Flour Mill", was a six-storeyed, six-sailed, and tarred slender Lincolnshire type windmill with the typical white onion-shaped cap with fantail, built in 1867 to be used to grind flour from grain.  Located on a paddock at the eponymous village in North Kesteven south of Lincoln it is one of the many tall brick-tower mills of Lincolnshire with stage, now disused.

De Arend, Terheijden: De Arend (English: "The Eagle") is a windmill located on the Molenstraat 40 in Terheijden, Drimmelen, in the province of North Brabant, Netherlands.  Built in 1742 the windmill functioned as a gristmill.  The mill was built as a tower mill and its sails have a span of 24.80 meters.  The mill is a national monument (nr 34992) since 19 May 1971.  The mill is still in use and is property of the municipality of Drimmelen.  It is open to public viewing.

Aalstermolen: The Aalstermolen (English: "Aalster Mill") is a windmill located on the Raadhuisstraat 28A in Aalst, Waalre, in the province of North Brabant, Netherlands.  Built in 1904 on an artificial hill, the windmill functioned as gristmill.  The mill was built as a tower mill and its sails have a span of 25.70 meters.  The mill has been a national monument (nr 38186) since 15 May 1968.

Waltham Windmill: Waltham Windmill is a six-sailed windmill located in the village of Waltham, five miles from Grimsby in North East Lincolnshire, England.  It is renowned in the area for having all six sails still in full working capacity, being one of the very few windmills like this in the United Kingdom.

Supporting paragraphs: Waltham Windmill Waltham, Lincolnshire
Answer: 6,413