PETER LOBO POPULATION DIVISION November 23, 2010 Using ACS Data for New York City – Opportunities and Challenges

Mexico Canada Where is NYC in the Continental United States? NEW YORK CITY Mexico Canada LA HABANA

The Five Boroughs of New York City STATEN ISLAND 491,808 BROOKLYN 2,566,836 QUEENS 2,279,674 BRONX 1,401,194 MANHATTAN 1,662,701 Source: New York City Department of City Planning Population Division 2010 Projection

New York City Community Districts* Bronx Manhattan Queens Brooklyn Staten Island Boundaries shown are for Public Use Microdata Areas. *

Bronx Manhattan Queens Brooklyn Staten Island New York City Community Districts* and Census Tracts *Boundaries shown are for Public Use Microdata Areas.

Major Strength of the ACS: Annual Data

Estimated Components of Population Change New York City, Thousands Net International Migration Net Domestic Migration Population Change Natural Increase Net Migration Source: U.S. Census Bureau, 2008 Estimates Program as revised by Population Division/NYCDCP

Top Countries of Birth for the Foreign-born New York City, 2008 *Includes Mainland China, Hong Kong and Taiwan Total = 3,050,437 Source: U.S. Census Bureau, 2008 American Community Survey-Public Use Microdata Sample Population Division-New York City Department of City Planning

Total: 7,794,272 Limited English Proficient 23.6% 1,843,004 Limited English Proficient Population, Ages 5 and Over New York City, 2008 English proficient 24.5% 1,909,070 Speaks only English at home 51.9% 4,042,198 Speaks language other than English at home 48.1% 3,752,074 Source: 2008 ACS Population Division, NYC Dept. of City Planning

Limited English Proficient Population By Language Spoken at Home New York City, 2008 * Includes Chinese, Cantonese, Mandarin, and Formosan Source: U.S. Census Bureau, 2008 American Community Survey-Public Use Microdata Sample Population Division-New York City Department of City Planning

*Data shown for poll sites within Public Use Microdata Areas. Poll sites Brooklyn Manhattan Queens Staten Island Bronx Poll Sites in Community Districts* with the Largest Number of Chinese Speakers

Major Strength of the ACS: Ability to Respond to New Data Needs

Source: New York State Department of Health, 2003 Income Thresholds for Selected New York State Public Health Insurance Programs for Children and Adults, 2003

Population Eligible for Public Health Insurance: 2.71 million (Census) Sources: 2000 Census and NYC Human Resources Administration,2003 Enrolled in Public Health Insurance Programs 2.17 million (Administrative data) New York City Residents Eligible for Public Health Insurance by Enrollment Status, 2003 Eligible, NOT Enrolled 536,000

*Data shown for poll sites within Public Use Microdata Areas.

New York City Children Eligible for Public Health Insurance But Not Enrolled by Community District*, 2003 *Data shown for poll sites within Public Use Microdata Areas. Eligible, but not enrolled

Major Challenge: Lower Reliability for Small Area Data

Census Tracts Brooklyn Manhattan Queens Staten Island Bronx New York City Census Tracts

ACS Initial Sample and Final Response as a Percent of all Bronx Housing Units, Housing Unit Average: 496,517 ACS SAMPLE 5 Year Initial Sample Total: 56,761 (11.4% of annual avg. housing units) 5 Year Final Response Total: 29,896 (6.0% of annual avg. housing units) 2000 CENSUS LONG FORM Final Response was 11.3% of housing units 2.8% 1.5% 2.2% 1.1% 1.2% 1.1% 1.2% 2.1% 2.2% % of Bronx Housing Units Initial Sample Final Interviews

Median Overall Coefficients of Variation for Bronx Census Tracts and Neighborhoods, ACS Coefficient of Variation

Median Overall Coefficients of Variation for Bronx Census Tracts and Neighborhoods, ACS Coefficient of Variation Ratio of Neighborhoods to Tracts =