Question: The London, Kentucky micropolitan area is made up of how many counties, in the Eastern Kentucky Coalfield, the part of the Central Appalachian bituminous coalfield, including all or parts of 30 Kentucky counties?

Context paragraphs:
National Weather Service Jackson, Kentucky: National Weather Service Jackson, currently based in Jackson, Kentucky, is a weather forecast office responsible for monitoring weather conditions for 33 counties in Eastern Kentucky.  The National Weather Service chose to put a weather forecast office (WFO) in eastern Kentucky due to the flooding of April 2-5, 1977.  The National Weather Service Jackson, Kentucky has been forecasting for portions of Eastern Kentucky since 1981.

London, Kentucky micropolitan area: The London, Kentucky micropolitan area is made up of three counties in the Eastern Coalfield region of Kentucky.  Before 2013, the area was officially known as the Corbin-London, KY Combined Statistical Area, and consisted of the Corbin Micropolitan Statistical Area and the London Micropolitan Statistical Area.  The Corbin micropolitan area consisted of Whitley County, and the London micropolitan area consisted of Laurel County.

List of counties in Kentucky: This is a list of the one hundred and twenty counties in the U.S. state of Kentucky.  Despite ranking 37th in size by area, Kentucky has 120 counties; depending on definitions, this is either third or fourth among U.S. states.  Texas has 254 counties and Georgia 159; Virginia has only 95 counties, but also has 38 independent cities that are not part of any county and deal directly with the state government, giving that state 133 county-level administrative units.  The original motivation for having so many counties was to ensure that residents in the days of poor roads and horseback travel could make a round trip from their home to the county seat and back in a single day, as well as being able to travel from one county seat to the next in the same fashion.  Later, however, politics began to play a part, with citizens who disagreed with the present county government simply petitioning the state to create a new county.  The 1891 Kentucky Constitution placed stricter limits on county creation, stipulating that a new county:

Area code 606: Area code 606 is a telephone area code serving the easternmost part of the Commonwealth of Kentucky.  Cities and towns in the area code include Ashland, Morehead, Hazard, Middlesboro, Somerset, London, Corbin, Paintsville, Pikeville and Maysville.  Most of its service area lies within the Kentucky region known as the Eastern Kentucky Coalfield.  It runs along the entire length of the state's borders with Virginia and West Virginia.

New River Coalfield: The New River Coalfield is located in northeastern Raleigh County and southern Fayette County, West Virginia.  Commercial mining of coal began in the 1870s and thrived into the 20th century.  The coal in this field is a low volatile coal, and the seams of coal that have been mined include Sewell, Fire Creek, and Beckley.  This is very high quality bituminous coal rated at approximately 15,000 btu .  The New River coalfield is named after the north flowing New River.  Over 60 coal towns were once located there, supported by independent commercial districts at Beckley, Oak Hill, Mount Hope, and Fayetteville.  By the 21st century many coal camps had partially or completely returned to nature.  These company towns were located along Dunloup (Loup) Creek, Laurel Creek, White Oak Creek, lower Piney Creek, and, of course, the New River.  The mainline of the Chesapeake and Ohio Railway ran right through the center of this coalfield, with spurs branching off in many directions, and rail yards were maintained at Quinnimont, Raleigh, and Thurmond, WV.  The Virginian Railway's main line also passed through the western side of the field as well.  Companies such as the New River Company, New River & Pocahontas Consolidated Coal Co., and Mary Frances Coal Co. were the largest operators in the New River Coalfield, but there were many smaller ones as well.  These companies recruited native born whites, immigrants from Southern and Eastern Europe, and African-Americans from the South to work in their coal mines and railroads.  The mines began to close down after World War II and today there are very few active coal mines in the field.  The New River Gorge is now the domain of the National Park Service and they have done what their budget allows to preserve the coal heritage of the area.

Somerset Coalfield: The Somerset Coalfield in northern Somerset, England is an area where coal was mined from the 15th century until 1973.  It is part of a larger coalfield which stretched into southern Gloucestershire.  The Somerset coalfield stretched from Cromhall in the north to the Mendip Hills in the south, and from Bath in the east to Nailsea in the west, a total area of about 240 sqmi .  Most of the pits on the coalfield were concentrated in the Cam Brook, Wellow Brook and Nettlebridge Valleys and around Radstock and Farrington Gurney.  The pits were grouped geographically, with clusters of pits close together working the same coal seams often under the same ownership.  Many pits shared the trackways and tramways which connected them to the Somerset Coal Canal or railways for distribution.

Eastern Kentucky Coalfield: The Eastern Kentucky Coalfield is part of the Central Appalachian bituminous coalfield, including all or parts of 30 Kentucky counties and adjoining areas in Ohio, West Virginia, Virginia and Tennessee.  It covers an area from the Allegheny Mountains in the east across the Cumberland Plateau to the Pottsville Escarpment in the west.  The region is known for its coal mining; most family farms in the region have disappeared since the introduction of surface mining in the 1940s and 1950s.

Frankfort, Kentucky: Frankfort is the capital city of the Commonwealth of Kentucky and the seat of Franklin County.  Based on population, it is the fourth-smallest state capital (after Montpelier, Vermont, Pierre, South Dakota and Augusta, Maine) in the United States.  It is a home rule-class city in Kentucky; the population was 25,527 at the 2010 census.  Located along the Kentucky River, Frankfort is the principal city of the Frankfort, Kentucky Micropolitan Statistical Area, which includes all of Franklin and Anderson counties.

London, Kentucky: London is a home rule-class city in Laurel County, Kentucky, in the United States.  It is the seat of its county.  The population was 7,993 at the time of the 2010 U.S. census.  London, Kentucky, is the second-largest city named London in the United States and the fourth-largest in the world.  It is part of the London, Kentucky micropolitan area.  Of the seventeen micropolitan areas in Kentucky, London is the largest; the London micropolitan area's 2010 Census population was 126,369.  London is also home to the annual World Chicken Festival that celebrates the life of Colonel Sanders and features the world's largest skillet.

Micropolitan statistical area: United States micropolitan statistical areas (µSA, where the initial Greek letter mu represents "micro-"), as defined by the Office of Management and Budget (OMB), are labor market areas in the United States centered on an urban cluster (urban area) with a population of at least 10,000 but fewer than 50,000 people.  The micropolitan area designation was created in 2003.  Like the better-known Metropolitan Statistical Areas, a micropolitan area is a geographic entity used for statistical purposes based on counties and county equivalents.  The OMB has identified 536 micropolitan areas in the United States.

Supporting paragraphs: London, Kentucky micropolitan area Eastern Kentucky Coalfield
Answer: three