Editing Clark County, Ohio (section)

===Metropolitan Statistical Area===
The Springfield metropolitan area was first defined in 1950. Then known as the '''Springfield Standard Metropolitan Area''' (Springfield SMA), it consisted of a single county – Clark – and had a population of 111,661.<ref>{{cite web | url = https://www.census.gov/population/www/metroareas/lists/historical/50mfips.txt | title = Standard Metropolitan Areas (SMAs) and Components| format = [[Text file|TXT]] | work = Standard Metropolitan Areas defined by the Bureau of the Budget, October 13, 1950 | publisher = [[United States Census Bureau]], Population Division | date = December 14, 2000 | access-date = February 7, 2009}}</ref><ref name="Census_1900-90">{{cite web | url = https://www.census.gov/population/www/censusdata/cencounts/files/oh190090.txt | title = Ohio - Population of Counties by Decennial Census: 1900 to 1990 | publisher = [[United States Census Bureau]], Population Division | date = March 27, 1995 | access-date = February 7, 2009}}</ref> Following a term change by the Bureau of the Budget (present-day [[Office of Management and Budget]]) in 1959, the Springfield SMA became the '''Springfield Standard Metropolitan Statistical Area''' (Springfield SMSA).<ref name="About">{{cite web | url = https://www.census.gov/population/www/metroareas/aboutmetro.html | title = About Metropolitan and Micropolitan Statistical Areas| publisher = [[United States Census Bureau]], Population Division | access-date = February 7, 2009}}</ref> By the [[United States census|census]] of [[United States Census, 1960|1960]], the population had grown to 131,440, an 18 percent increase over the previous census.<ref name="Census_1900-90"/> [[Champaign County, Ohio|Champaign County]] was added to the Springfield SMSA in 1973. The two-county area had a combined population of 187,606 in 1970.<ref name="Census_1900-90"/>

In 1983, the official name was shortened to the '''Springfield Metropolitan Statistical Area''' (Springfield MSA).<ref name="About"/> That same year, Dayton and Springfield were grouped together as the '''Dayton-Springfield Metropolitan Statistical Area'''. The new MSA consisted of four counties – Clark, [[Greene County, Ohio|Greene]], [[Miami County, Ohio|Miami]], and [[Montgomery County, Ohio|Montgomery]].<ref>{{cite web | url = https://www.census.gov/population/www/metroareas/lists/historical/83mfips.txt | title = Metropolitan Areas and Components, 1983 | format = [[Text file|TXT]] | work = Metropolitan Areas defined by Office of Management and Budget, June 27, 1983 | publisher = [[United States Census Bureau]], Population Division | date = March 1, 2001 | access-date = February 7, 2009}}</ref> This arrangement remained unchanged until 2003, when the MSA was split with Springfield's newly defined metropolitan area including only Clark County.<ref>{{cite web | url = https://www.census.gov/population/www/metroareas/lists/2003/03msa.txt | title = Metropolitan Statistical Areas and Components, 2003| format = [[Text file|TXT]] | work = Metropolitan statistical areas defined by Office of Management and Budget, June 6, 2003 | publisher = [[United States Census Bureau]], Population Division | date = July 10, 2003 | access-date = February 7, 2009}}</ref>