TABLE 2.

Rural–urban spectrum: Rural–urban continuum codes for counties and rural-urban measures for MIGPUMAs

Rural-urban spectrum	MOST URBAN			INTERMEDIATE				MOST RURAL

Rural-urban continuum code (Beale Code) for counties
Code and descriptors for metro & nonmetro, adjacent & not adjacent counties	1 Large metro	2 Intermed. metro	3 Small metro	4 Large nonmetro, adjacent	5 Large nonmetro, not adjac.	6 Intermed. nonmetro, adjacent	7 Intermed, nonmetro, not adjac.	8 Small nonmetro, adjancet	9 Small nonmetro, not adjac.
#2013 counties	432	379	356	214	92	593	433	220	424
2010 population (in million)	168.5	65.6	28.3	13.5	5.0	14.8	8.2	2.2	2.6
Disability rate (in %)	10.8	13.0	14.2	15.5	14.6	17.1	16.8	18.3	18.2
Rural-urban measures for MIGPUMAs ^a
Rural-urban scale	1.0, 1.01			continuous				8.29, 8.30
Rural-urban class	1	1–2	2–3	3–4	4–5	5–6	6–7	7–8.3^b
	EQ l^b	GT 1, LE 2	GT 2, LE 3	GT 3, LE 4	GT 4, LE 5	GT 5, LE 6	GT 6, LE 7	GT 7, LE 8.3
Descriptors	metro 1	metro 1–2	metro 2–3	nonmet 3–4	nonmet 4–5	nonmet 5–6	nonmet 6–7	nonmetro 7–8.3
Altemat. descript.	most urban			intermediate				most rural
#2010 MIGPUMAs	237	178	163	108	96	95	77	26
2011–2015 Population (in million)	158.1	68.5	31.7	17.6	14.2	12.9	10.3	3.1
Disability rate (in %)	11.2	13.0	14.4	16.5	17.0	17.3	17.5	18.1

Note. Source of 2013 RUCC (Beale) Codes: Economic Research Service (ERS, 2013). Source of 2010 population: Decennial Census of Population and Housing 2010 (U.S. Census Bureau, 2011). Source of 2011–2015 population and disability rate: ACS PUMS 2011–2015 (U.S. Census Bureau, 2017).

Abbreviations: EQ, equal to; GT, greater than; LE, less than or equal to.

Derived from Beale Code of counties, weighted by county populations.

Classes 7–8 and 8 plus combined due to small number of MIGPUMAs.