Delaware statistical areas

The U.S. State of Delaware currently has four statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated one combined statistical area, two metropolitan statistical areas, and one micropolitan statistical area in Delaware.^[1] As of 2023, the largest statistical area in the state is the Philadelphia-Reading-Camden, PA-NJ-DE-MD Combined Statistical Area, which includes Delaware's largest city, Wilmington.

Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.^[2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,^[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".^[2] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.^[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.^[2] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

Table

The four United States statistical areas and three counties of the State of Delaware^[a]
Combined statistical area^[1]	2023 population (est.)^[3]	Core-based statistical area^[1]	2023 population (est.)^[3]	County	2023 population (est.)^[3]	Metropolitan division^[1]	2023 population (est.)^[3]
Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA	7,390,919 768,381 (DE)	Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA	6,246,160 578,592 (DE)	Philadelphia County, Pennsylvania	1,550,542	Philadelphia, PA MD	2,127,262
				Delaware County, Pennsylvania	576,720	Philadelphia, PA MD	2,127,262
				Montgomery County, Pennsylvania	868,742	Montgomery County-Bucks County-Chester County, PA MD	2,064,510
				Bucks County, Pennsylvania	645,984
				Chester County, Pennsylvania	549,784
				Camden County, New Jersey	527,196	Camden, NJ MD	1,304,786
				Burlington County, New Jersey	469,167
				Gloucester County, New Jersey	308,423
				New Castle County, Delaware	578,592	Wilmington, DE-MD-NJ MD	749,602 578,592 (DE)
				Cecil County, Maryland	105,672
				Salem County, New Jersey	65,338
		Reading, PA MSA	432,821	Berks County, Pennsylvania	432,821	none
		Atlantic City-Hammonton, NJ MSA	369,823	Atlantic County, New Jersey	275,213
		Atlantic City-Hammonton, NJ MSA	369,823	Cape May County, New Jersey	94,610
		Dover, DE MSA	189,789	Kent County, Delaware	189,789
		Vineland, NJ MSA	152,326	Cumberland County, New Jersey	152,326
none		Seaford, DE μSA	263,509	Sussex County, Delaware	263,509
State of Delaware					1,031,890

Core-based statistical areas

The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.

The three core-based statistical area of the State of Delaware^[b]
2023 rank	Core-based statistical area^[1]	Population
2023 rank	Core-based statistical area^[1]	2023 estimate^[3]	Change	2020 Census^[4]	Change	2010 Census^[5]
1	Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA (DE)	578,592	+1.38%	570,719	+5.99%	538,479
2	Seaford, DE μSA	263,509	+11.01%	237,378	+20.41%	197,145
3	Dover, DE MSA	189,789	+4.37%	181,851	+12.04%	162,310
	Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA	6,246,160	+0.02%	6,245,051	+4.69%	5,965,343

Combined statistical areas

The following table provides the in-state population ranking of each CSA along with its rate of population change over time.

The one combined statistical area of the State of Delaware^[c]
2023 rank	Combined statistical area^[1]	Population
2023 rank	Combined statistical area^[1]	2023 estimate^[3]	Change	2020 Census^[4]	Change	2010 Census^[5]
1	Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA (DE)	768,381	+2.10%	752,570	+7.39%	700,789
	Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA	7,390,919	+0.15%	7,379,700	+4.41%	7,067,807

Notes

^ An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
^ For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
^ For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

References

^ ^a ^b ^c ^d ^e ^f Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "OMB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved November 5, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ ^a ^b ^c ^d ^e "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
^ ^a ^b ^c ^d ^e ^f "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
^ ^a ^b "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
^ ^a ^b "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

External links

38°59′23″N 75°30′18″W / 38.9896°N 75.5050°W / 38.9896; -75.5050 (State of Delaware)

[3] An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.

[5] For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.

[8] For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

[OMB_20230721-1] ^ ^a ^b ^c ^d ^e ^f Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "OMB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved November 5, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)

[CBSA-2] "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.

[PopCBSA-4] ^ ^a ^b ^c ^d ^e ^f "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.

[USC2020-6] "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.

[USC2010-7] "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

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