Appendix CPopulation Data
Appendix CPopulation Data
A.Reference Year Population
The SWMD’s population in 2014 was 148,185 after adjustments. These figures were derived from the Ohio Development Services Agency and include adjustments made in accordance for political subdivisions located partially within the District and partially within surrounding solid waste districts. Adena in Harrison County, and Magnolia and Minerva in Carroll County are the only villages where the majority of the population resides outside their respective counties. The populations of these villages that reside within Carroll and Harrison counties have been removed from the total District population. Additionally, a small percentage of Washingtonville, Columbiana and Salem residents live in Mahoning County. These residents were added to the Columbiana County population.
Table C-1aReference Year Population Adjustments
CarrollBefore Adjustment / 28,815
Additions
Subtractions
Magnolia / 698
Minerva / 1,903
After Adjustment / 26,214
Columbiana
Before Adjustment / 106,896
Additions
Washingtonville / 340
Columbiana / 658
Salem / 4
Subtractions
After Adjustment / 107,898
Harrison
Before Adjustment / 15,701
Additions
Subtractions
Adena / 628
After Adjustment / 15,073
Source(s) of Information: Ohio Development Services Agency
Adjustments were made as indicated in Table C-1a, which provided us with the “After Adjustment Population” below. As by Ohio law, the population of Magnolia and Minerva must be subtracted from the SWMD’s population because those municipalities reside in more than one county and Carroll County does not have the majority of that population. The same occurred with Adena in Harrison County. The majority of Adena’s population reside in Jefferson County and therefore, Harrison County does not receive credit and must subtract that population from our county’s total population. In Columbiana County, that law works to our advantage. Washingtonville, Columbiana, and Salem all have the majority of their population in Columbiana County so the population residing in adjacent Mahoning County must be added to our SWMD’s population.
Table C-1bTotal Reference Year Population
Total Reference Year PopulationBefore Adjustment
Population / After Adjustment
Population
151,412 / 149,185
Source(s) of Information: Ohio Development Services Agency
B.Population Projections
The SWMD’s population projections from the reference year through the end of the planning period are presented in Table C-2 below. The Ohio Development Services Agency’s (“ODSA”) 2014 population estimates by county, city, village, and township were used to calculate a base population or the District. Using a second ODSA publication (Ohio County Profiles), which presents population projections by county in 10 year intervals from 2010 to 2040, the SWMD’s population was projected across intermediate years using a straight-line projected percentage.
Ohio law requires that the population for a political subdivision that lies within two or more solid waste management districts shall be credited to the District where the majority of the population resides.
Page C-1Appendix CPopulation Data
Table C-2Population Projections
Source(s) of Information: The Ohio Development Services Agency
Page C-1