Tag Archives: ZCTA

Relating ZIP Codes to City/Places

.. relating ZIP codes to cities .. 214 ZIP code areas intersect with New York city — what are these ZIP codes, their population and how many are completely within the city? What part of a ZIP code area of interest intersects with what city? Conversely, what ZIP code areas intersect with a city of interest? This section provides data and tools that can be used to answer these types of questions and gain insights into geospatial relationships. See more detailed information in the related full Web section.

The 2010 ZIP Code Tabulation Area (ZCTA) to City/Place relationship data provide a means to equivalence ZCTAs with Census 2010 cities/places. ZCTAs are geographic areas defined as sets of Census 2010 census blocks closely resembling USPS ZIP codes (lines, not areas). ZCTA boundaries are fixed for the intercensal period 2010 through 2020. Census 2010 vintage city/place areas are likewise defined as sets of Census 2010 census blocks. The ZCTA-City/place relationship data are developed through the use of the intersecting census block geography and associated Census 2010 Summary File 1 demographic data.

ZCTA-Place Relationships
The following graphic shows relationships between two selected ZCTAs (red boundaries) and related cities/places (blue fill pattern) in the Pima/Cochise County, AZ area. Relationships between these geographies are reviewed in examples shown below.

– View developed using CV XE GIS and related GIS project.

Using the ZCTA-Place Relationship Data
Two examples illustrating how to use the ZCTA-place relationship data are provided below. The examples are interconnected to the GIS project used to develop the map views, interactive table and data file described in this section. Example 1 describes how to use the data for a ZIP code area entirely located within one city/place. Example 2 describes how to use the data for a ZIP code area located in more than one city/place and area not located in any city/place.

ZCTA to Place Relationships: Example 1
In this example, ZCTA 85711, highlighted in red in the graphic shown below, falls wholly within place 77000, outlined in bold black below. As a result, there is only one corresponding record for ZCTA 85711 in the relationship file. The 2010 Census population for this relationship record is 41,251 (POPPT) which is equal to the 2010 Census population for ZCTA 85711 (ZPOP). See more details about this example.

ZCTA to Place Relationships: Example 2
In this example, ZCTA 85630, highlighted below in red in the graphic shown below, contains two places: all of place 62280 and part of place 05770, both are outlined in black below. As a result, there are two corresponding relationship records in the relationship file. For the first relationship record, the total 2010 Census population for ZCTA is 2,819 (ZPOP). See more details about this example.

Using the Interactive Table
Use the full interactive table to examine U.S. national scope ZCTA-city/place relationships. The following graphic illustrates how ZIP code can be displayed/examined for one city — Tucson, AZ. Each row summarizes characteristics of a ZIP code in Tucson. The last row in the graphic shows characteristics of ZIP code 85711 — the same ZIP code reviewed in Example 1 above.

Click graphic for larger view.

Join me in a Data Analytics Lab session to discuss more details about accessing and using wide-ranging demographic-economic data and data analytics. Learn more about using these data for areas and applications of interest.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data. Contact Warren. Join Warren on LinkedIn.

ZIP Code Demographic-Economic Characteristics

.. demographic-economic characteristics of ZIP code areas (ZCAs) are popular for many reasons. Businesses use ZCAs to examine sales patterns and market and sales territories and for planning and analysis; many client/sales related data may only be available by ZIP code. Analysts seek to knit together these business data with broader demographic-economic characteristics of the area/market — as reviewed here. Where are areas of missed opportunity relative to the size of the market? How is one or a group of ZIP code areas changing, and why? How might change impact you? This section provides an illustrative ZIP code area demographic-economic profile and reviews how you can create similar profiles, and datasets for linking your data and further analysis, for any ZCA.

ZIP code 77019, located in the Houston area, is used for illustration. The demographic-economic data/analyses reviewed here were generated using the ProximityOne Outlook2020 software. See that Web section for details about sources, scope and uses of data. Outlook2020 can be used to create these profiles and data extracts for any ZIP code area and many other types of geography.

ZIP Code 77019 in Context of Houston Area
ZIP code 77019 is shown at pointer.

… view created using CV XE GIS.

ZIP Code 77019 Patterns of Economic Prosperity
ZIP code 77019 is shown with bold black boundary. The thematic pattern map shows median household income by census tract.

… view created using CV XE GIS.

Using Outlook2020
Outlook2020 can be used to create a profile for ZCA 77019 (or any ZCA) as well as intersecting census tracts (shown in above view). The two following graphics present a partial view of the ZCA 77019 demographic-economic profile. It is easy to see columns of estimates for two years and their change. The basic profile includes approximately 170 demographic-economic characteristics.

Profile in XLS Structure

Profile in HTML Structure

ZCA 77019 Full HTML Demographic-Economic Profile
See the full profile in this related Web section.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data.

Guide to ZIP Code Data Resources

.. what are the options to access and use ZIP Code area geographic, demographic and economic data? This section provides an overview of selected options available to access ZIP code area data from Census 2010, American Community Survey and 5-year current estimates and projections. A ZIP Code Area (ZCA) is a set of generally contiguous of Census 2010 census blocks that approximates the corresponding U.S. Postal Service (USPS) ZIP code delivery area. The USPS does not define ZIP code delivery areas as polygons; rather they are a collection of lines/streets and roads. See the related section about ZIP Code area data access options. See corresponding Web page for more details on topics covered here.

In this section:
1. Geography
2. Census 2010 Demographics
3. American Community Survey 2011 Demographic-Economic Data
4. American Community Survey 2012 Demographic-Economic Data
5. American Community Survey 2013 Demographic-Economic Data
6. Current Estimates & Projections
American Community Survey 2014 estimates to be released in December 2015.

1. Geography
Data for ZIP code areas (ZCAs) described below are for ZIP code areas defined as of Census 2010. In general, the boundaries have not been changed since that time. In contrast, some USPS ZIP codes have been added/modified since Census 2010. Census 2010 ZCAs do not cover the U.S.wall-to-wall as the result of some geographies not being populated. However, in most urbanized areas Census 2010 ZIP code areas closely approximate USPS ZIP code delivery areas as of 2010. The USPS does not provide boundaries for USPS ZIP code areas. There are approximately 33,120 Census 2010 ZIP Code areas.

1.1. Equivalence Files. ZCA component census blocks may be determined by using the Census 2010 Summary File 12010SF1 geographic header record. Block level records in that file contain both the block geocode and the ZCA code.

How do ZCAs intersect with other geography? What part of a ZCA is in what county? ZCA-to-other geography equivalence files may also be developed using the 2010SF1 geographic header record. Equivalence files available include (links open a new page):
ZCA to County
ZCA to City/Place
ZCA to MCD/Town/County Subdivision
ZCA to School District
ZCA to Census Tract
ZCA to 111th/112th/113th/114th Congressional District
ZCA to Metropolitan and Micropolitan Statistical Areas

1.2. Shapefiles: Mapping ZIP Code Areas. Create ZCA reference and/or thematic pattern maps using the CV XE GISand ZCA shapefiles. Members of the ProximityOne User Group may use the GeoGateway feature to download ZCA boundary files and add the ZCA boundary shapefile as a layer in a GIS project. The graphic below shows Texas ZIP Code areas (dark blue boundary) with a zoom-in to Harris County (bold black boundary)/Houston area. The view was created from scratch in minutes using the CV XE GIS GeoGateway tool.

Click graphic for larger view showing ZIP codes as labels. View developed with CV XE GIS.

2. Census 2010 Demographics
Census 2010 demographics are available for ZIP code areas. There are no “richer demographics” (such as educational attainment, income, employment, language spoken, enrollment, housing value etc.) available for any type of tabulation area — owing to the fact that those questions were not on the questionnaire.

2.1. Demographic Profile Summary File. A recommended collection of Census 2010 data for ZIP code areas is available from the “Demographic Profile Summary File.” See more about theDPSF structure and content. See corresponding Web page to acquire this dataset.

2.2. Census 2010 More Detailed Subject Matter. More detailed Census 2010 ZCA data are available from the Census 2010 Summary File 1 and the Census 2010 Summary File 2. The more detailed Census 2010 data may be viewed/downloaded using the Census Bureau FactFinder or Census API or using custom extracts developed by ProximityOne.

3. 2011 ACS Demographic-Economic Data
2011 American Community Survey 5-year demographic-economic estimates (ACS0711) for Census 2010 ZCAs were released in December 2012. These estimates are centric to mid 2009.

3.1. 2011 ACS Interactive Tables. View, rank, sort, query 2012 ACS ZIP Code area data via interactive table (links open a new page):
General Demographics
Social Characteristics
Economic Characteristics
Housing Characteristics

3.2. Augmented 2011 ACS Interactive Tables. Extract ZCA data from 2011 ACS interactive tables to Excel.
Members of the ProximityOne User Group may access the following similarly structured table and extract data for ZCAs and save in text files or Excel files — requires UserID; links open a new page:
General Demographics
Social Characteristics
Economic Characteristics
Housing Characteristics

The only difference between the above sets of Web sections is the data extraction feature.

3.3. 2011 ACS Demographic-Economic Profile Datasets. The same subject matter data shown in the interactive tables area available in the form of datasets. There are four datasets corresponding to the content and data organization shown in the tables. See corresponding Web page to acquire these datasets.

3.4. 2011 ACS More Detailed Subject Matter. More detailed 2011 ACS data may be viewed/downloaded using the Census Bureau FactFinder or Census API or custom extracts developed by ProximityOne.

4. 2012 American Community Survey Demographic-Economic Data
2012 American Community Survey 5-year demographic-economic estimates (ACS0812) for Census 2010 ZCAs were released in December 2013. These estimates are centric to mid 2010.

4.1. 2012 ACS Interactive Tables. View, rank, sort, query 2012 ACS ZIP Code area data via interactive table (links open a new page):
General Demographics
Social Characteristics
Economic Characteristics
Housing Characteristics

4.2. 2012 ACS Demographic-Economic Profile Datasets. The same subject matter data shown in the interactive tables area available in the form of datasets. There are four datasets corresponding to the content and organization shown in the tables. See corresponding Web page to acquire these datasets.

4.3. 2012 ACS More Detailed Subject Matter. More detailed 2012 ACS data may be viewed/downloaded using the Census Bureau FactFinder or Census API or custom extracts developed by ProximityOne.

5. 2013 American Community Survey Demographic-Economic Data
2013 American Community Survey 5-year demographic-economic estimates (ACS0913) for Census 2010 ZCAs were released in December 2014. These estimates are centric to mid 2011.

5.1. 2013 ACS Demographic-Economic Profile Datasets. The same subject matter data shown in the interactive tables area available in the form of datasets. There are four datasets corresponding to the content and organization shown in the above ACS 2012 tables. See corresponding Web page to acquire these datasets.

5.2. 2013 ACS More Detailed Subject Matter. More detailsd 2013 ACS data may be viewed/downloaded using the Census Bureau FactFinder or Census API or custom extracts developed by ProximityOne.

6. ZIP Code 5-Year Demographic-Economic Estimates & Projections
ProximityOne develops annually updated demographic-economic estimates and projections for ZIP Code areas. See more about the ZIP Code 5-Year Annual Estimates & Projections.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data.