First Metro/Micro Area and 

County Population Estimat

Since 2010 Census

Med

A

Webinar access inf

Toll free number: 888

Passco

URL: https://www.mymeetings.co

Conference/meeting number: P

Conference/meeting passco
Today’s Speakers

Host Stan Rolark

Chief, Public Information Office

Presenters Ben Bolender

Statistician/Demographer, Population Estimates BranPopulation DivisionPaul MackunGeographer, Population Distribution Branch Population DivisionTom FischettiGeographer, Population Distribution Branch Population Division 
Today’s Release is 

Embargoed

Embargo Date: April 3

Release to Public: April 5 @ 12:0

AM EDT
Electronic Press Kit

• Today’s presentation• News release • Supporting ranking tables• Maps
County Population Estima
What Data Are We Releasing

• Estimates of the total resident population 

counties or county equivalents, Puerto Rimunicipios, metropolitan and micropolitan statistical areas

– April 1, 2010 population base– July 1, 2010 estimate– July 1, 2011 estimate

• Component of change estimates for coun

– Births, deaths, domestic and international mig
How Are These Estimates Calcul

• Population estimates are calculated us

component of change method

• Formula: 

PJuly 1, 2011 = PApril 1, 2010 + B – D + NIM + NDM

• P = Population• B = Births from April 1, 2010 to July 1, 2011• D = Deaths from April 1, 2010 to July 1, 2011• NIM = Net International Migration from April 1

July 1, 2011

• NDM = Domestic Migration from April 1, 2010 

July 1, 2011
Context: National Estimates

• National total resident population 

estimates:

– April 1, 2010: 308,745,538– July 1, 2010: 309,330,219– July 1, 2011: 311,591,917

• Numeric increase: 2,846,379• Percent increase: 0.9 percent

Top Ten Counties by Population S

July 1, 2011

1. Los Angeles County, CA 9,882. Cook County, IL 5,213. Harris County, TX 4,184. Maricopa County, AZ 3,885. San Diego County, CA 3,146. Orange County, CA 3,057. Miami-Dade County, FL 2,558. Kings County, NY 2,539. Dallas County, TX 2,41

10. Queens County, NY 2,24

Fastest Growing Counties (by Perc

Change): April 1, 2010 to July 1, 2

1. Charlton County, GA 12. St. Bernard Parish, LA 13. Williams County, ND 4. Manassas Park city, VA 5. Franklin County, WA 6. Fredricksburg city, VA 7. Dallas County, IA 8. Hoke County, NC 9. Orleans Parish, LA 

10

.

Williamson County, TX 

Note: These data are for counties or equivalents with populations of

10,000 or more on July 1, 2011

Counties with the Largest Numeric Inc

April 1, 2010 to July 1, 2011

1. Harris County, TX 2. Los Angeles County, CA 3. Maricopa County, AZ 4. Miami-Dade County, FL 5. Riverside County, CA 6. Dallas County, TX 7. Orange County, CA 8. San Diego County, CA 9. Bexar County, TX 

10. Tarrant County, TX 

Other Findings

• None of the ten fastest growing coun

between the 2010 Census and July 2011 were among the fastest growinCensus 2000 to Census 2010.

• For example, St. Bernard Parish ran

last in percent change between the tdecennial censuses, due primarily to effects of Katrina

Note: These data are for counties or equivalents with populations of

10,000 or more on July 1, 2011
Metropolitan and Micropol

Statistical Areas
Metropolitan and micropolit

statistical areas

• A core based statistical area (CBSA) consists of the 

counties (or equivalents) associated with at least one core of 10,000 or greater population, plus adjacent chaving a high degree of integration with the core(s) ameasured by commuting ties.

• Metropolitan statistical areas (metro areas): urba

area of 50,000 or more

• Micropolitan statistical areas (micro areas): urban 

of 10,000 to 49,999

• Territory not included in a CBSA is designated as 

Core Based Statistical Areas


Metro area growth and propo

• Metro areas: 

• Grew by 1.1 percent between April 1, 2

and July 1, 2011 (total U.S. growth = 0percent)

• Contain 83.8 percent of the U.S. popul

as of July 1, 2011


Metro areas with numeric gains of at least 1

between April 1, 2010 and July 1, 201

• Dallas-Fort Worth-Arlington, TX • Houston-Sugar Land-Baytown, TX • Washington-Arlington-Alexandria, DC-VA-MD-WV • New York-Northern New Jersey-Long Island, NY-NJ-PA • Los Angeles-Long Beach-Santa Ana, CA • Miami-Fort Lauderdale-Pompano Beach, FL 
Micro area growth and propo

• Micro areas: 

• Grew by 0.3 percent between 

April 1, 2010 and July 1, 2011 

• Contain 10.0 percent of the U.S. 

population as of July 1, 2011

Most populous micro areas: 

July 1, 2011

1. Seaford, DE 200,32. Hilton Head Island-Beaufort, SC 189,83. Torrington, CT 188,74. Hilo, HI 186,75. Daphne-Fairhope-Foley, AL 186,76. Lebanon, NH-VT 174,57. East Stroudsburg, PA 169,88. Thomasville-Lexington, NC 162,69. Statesville-Mooresville, NC 161,2

10. Kahului-Wailuku, HI 156,6
Ten largest micro area numeric gainer

1, 2010 to July 1, 2011

1. Dunn, NC 4,52. Daphne-Fairhope-Foley, AL 4,43. The Villages, FL 4,34. Seaford, DE 3,15. Hilton Head Island-Beaufort, SC 2,86. Statesboro, GA 2,67. Minot, ND 2,58. Lexington Park, MD 2,39. Gallup, NM 2,1

10. Moses Lake, WA 2,1
Questions?
Upcoming Releases and Events 

From the U.S. Census Bureau

• 2010 Census Summary File 2 – National File 

(April 26)

• 2010 Census Summary File 2 – Ongoing rele

of state files (through April)

• 2010 Census Brief on Households and Famil

(late April/early May)

• Foreign-Born Population: 2010 (May 10)• July 1, 2011 Population Estimates for Nation, 

States, and Counties by Demographic Characteristics (May 17)
For Further Information

Media Public Information O

301-763-3030

General Public Customer Services C

1-800-923-8282 or (301) 763-INFO (463