Census Block, Block Group & Census Tract Pattern Analysis
Join us in an upcoming one-hour Web session.
View Census Tracts in Context of Google Maps API
Fort Bend County, TX by census tract
& Sugar Land
Warren County, IA by census tract
Warren County, MO by census tract
Washington, DC by census tract
12.30.15. Census Tract ACS 2014 5-year Estimates Tables & Datasets
... interactive tables, datasets & GIS projects
... General Demographics
... Social Characteristics
... Economic Characteristics
... Housing Characteristics
Percent Population 65 Years & Over by Tract
08.19.15. 2014 Census Tract Population Estimates
... interactive table providing access to 2014 population estimates by census tract.
... See http://proximityone.com/census_tract_demographics.htm
08.04.15. Get Census Tract Profile based on Address
... key in an address and view profile for corresponding census tract.
... See http://proximityone.com/location_based_demographics.htm
02.17.15. Financial Institutions & Neighborhood Characteristics
... examining relationships: FDIC-insured banks and savings institution locations
and census tract demographic-economic characteristics
... visualizing patterns ... Houston area ...
02.14.15. New ACS-Based Voting Rights Act Demographics
... ACS 2009-13 Special Tabulation Citizen Voting Age Population (CVAP) estimates by race/origin
... examining relationships between legislative districts, census tracts, voting districts & census blocks
... interactive table -- http://proximityone.com/cvap_tracts_2013.htm
... visualizing patterns ... Los Angeles area ...
01.12.15. Arizona K-12 Schools & School Districts GIS Project
... using ACS 2013 census tract data: examining schools/school districts and neighborhood characteristics
... downloadable GIS project & related datasets; school/school districts & attributes
... see http://proximityone.com/k12_az.htm
Patterns of economic prosperity by neighborhood; Mesa Unified in context of Mesa city:
01.02.15. Guide to Census Tract Geographic-Demographic-Economic Analysis
09.01.14. Census 2010 Census Tract Tallies by State
... interactive table: http://proximityone.com/geo_tracts.htm
... water and land area tracts; compare with blocks and block groups
... Warren Glimpse blog on this topic
... searchable list of blog posts
06.24.14. Census Tract 5-Year Projections to 2019
... developed by ProximityOne
... as of June 2014, the latest Census-sourced estimates centric to 2010 (ACS 2012)
... annually updated; annual series 2010-2019; 5 year projections--2015-2019)
... population by single year of age (0..85 years and up) by gender by race/origin; housing units; households; vacant units
... Contact us for more information; mention tract projections in text section
03.03.14. Neighborhood Patterns GIS Projects
... state by neighborhood/tract GIS projects; usergroup resources
... ready-to-use projects to analyze neighborhood demographic-economic patterns
12.30.12. Census Tract Demographic-Economic Interactive Tables
... ACS 2012 sourced; national scope; all Census 2010 census tracts; approximately 600 items for each tract; four subject matter groups:
... General Demographics -- http://proximityone.com/tracts12dp1.htm
... Social Characteristics -- http://proximityone.com/tracts12dp2.htm
... Economic Characteristics -- http://proximityone.com/tracts12dp3.htm
... Housing Characteristics -- http://proximityone.com/tracts12dp4.htm
10.07.13. Examining Low and Moderate Income Census Tract Patterns
... 2013 HMDA Census 2010 & ACS demographics
... GIS tools and national scope census tract shapefile with integrated data; no registration
... examples and getting started: http://proximityone.com/tractslmi.htm
04.05.13. Examining Census Tract Boundaries & OpenStreetMap WMS
... options to examine boundaries in context of roads/ground coverage
... pros & cons of using roads shapefiles vs OpenStreetMap WMS
... GIS applications & tools http://proximityone.com/cv_osm.htm
02.25.13. Examining Poverty Status by Age by Census Tract
... ACS 2011 5-year poverty status estimates; national scope census tracts
... population by age group with incomes above and below poverty level
... interactive ranking table ... http://proximityone.com/tracts_poverty.htm
02.01.13. Citizen Voting Age Population Patterns by Census Tract
... ACS 2011 5-year special tabulation estimates
... citizens and citizen voting age population by race/ethnicity
... interactive ranking table ... http://proximityone.com/tracts_cvap.htm
01.23.13. Impact of Census 2010 Census Tract Codes Changes
... changes made to Census 2010 census tract codes/areas by Census Bureau; details in scroll section below
... impact ACS 2011 & future ACS estimates and related post Census 2010 data
... changes affect structure and number of census tracts in New York state only
01.09.13. Comparing Census Tract Demographics to ZIP Code Demographics
... Census 2010 geography tallies: 73,057 census tracts; 32,989 ZIP Code areas
... equivalencing census tract & ZIP Code area geography:
... using census tract demographics vs to ZIP Code area demographics:
... census tract-ZIP Code demographic profiles; comparative analysis:
12.14.12. Census Tract Demographic-Economic Ranking Tables
... ACS 2011 sourced; national scope; all Census 2010 census tracts; approximately 600 items for each tract; four subject matter groups:
... General Demographics -- http://proximityone.com/tracts11dp1.htm
... Social Characteristics -- http://proximityone.com/tracts11dp2.htm
... Economic Characteristics -- http://proximityone.com/tracts11dp3.htm
... Housing Characteristics -- http://proximityone.com/tracts11dp4.htm
Analyzing Census Tract GeoDemographic Change 2000-2010-2012
... view/analyze Census 2000 tracts and corresponding Census 2010 tracts
... compare 2000 & 2010 tracts side-by-side with associated demographics
... associate ACS 2010 5-year estimates with Census 2000 & Census 2010 tracts
ACS 2010 Demographics for Census 2010 Census Tracts
interactive ranking table -- http://proximityone.com/acs0610.htm
Census 2010 Demographics for Census 2000 Census Tracts
interactive ranking table -- http://proximityone.com/tracts0010.htm
Census 2010 Census Tract Street Index
State by Tract Visual Analysis Patterns and ACS Demographics Ranking Tables
Census tracts are defined by the Census Bureau and organized as sub-county building blocks.
Census tracts are small geographic areas, designed to average 4,000 population, but vary widely.
Census tracts cover the U.S. wall-to-wall provide a good geographic granularity to meet many needs.
Unchanging throughout the decade, census tract boundaries
are subject to update for each decennial census.
Major changes occurred with Census 2010 vintage census tracts as the approximate 65,000 Census 2000 census tracts
expanded to 73,057 Census 2010 census tracts.
Census tracts were first designed to be relatively homogeneous with respect to population characteristics, economic status, and living conditions.
Over time, with demographic shifts, census tracts are often no longer so homogenous.
However, tracts do closely approximate neighborhoods/neighborhood parts for many areas.
The geographic size of census tracts varies widely depending on the density of settlement.
Census tract boundaries are delineated with the intention of being maintained over many decades
so that statistical comparisons can be made from decennial census to decennial census.
Census tracts may be split due to population growth or combined as a result of substantial population decline.
Census tracts were initially identified by a four-digit basic number and with a two-digit numeric suffix; for example, 6059.02.
This version of the tract code is shown in column 3 in the ranking table.
The decimal point separating the four-digit basic tract number from the two-digit suffix has been historically shown in printed reports and maps.
Many census tracts do not have a suffix; in such cases, the suffix field is either left blank or is zero-filled.
Census tract suffixes may range from .01 to .98. These optionally ways of assigning census tract geocodes or handles has led to
some vagueness potentially creating problems in handling now common spreadsheet or CSV files.
The national scope uniquely identifying tract geocode is the 11 character code shown in column 4 in the ranking table.
The tract geocode is of the form SSCCCTTTTTT where SS is the FIPS state code, CCC is the county FIPS code and TTTTTT is the Census assigned tract code.
In the tract geocode, there are never blanks or dots and lead zeroes are used for each the state, county and tract code components.
This is the recommended tract unique identifier.
Impact of Census 2010 Census Tract Codes Changes
An important feature of census tract codes and corresponding geographic area
is that they typically do not change from one census to the next.
The Census Bureau has made changes to some Census 2010 census tract codes and areas in New York following tabulation of the Census 2010 results.
ACS 2011 tract estimates,
future ACS census tract estimates and non-Census estimates and projections are impacted.
These changes impact the structure and number of census tracts in New York
and as a result the number and sequencing national scope census tracts.
As of Census 2010, there were 73,057 census tracts (states and D.C.); there are now 73,056 census tracts.
These changes do not impact tracts/tract data confined to single states other than New York.
For the 2011 ACS data release, there are tract numbering changes and geographic definition changes
to census tracts in Madison, Oneida and Richmond counties, New York. The census tract changes in Madison and Oneida Counties are the
result of changes to the Oneida American Indian Reservation boundary after the 2010 Census tract definitions had been finalized.
Madison County, New York (36053)
In Madison County, the numbering of nine census tracts changed, but their geographic definitions remain the same as their 2010 census tract definitions.
Census Tract 9401.01 is now 0301.01
Census Tract 9401.02 is now 0301.02
Census Tract 9401.03 is now 0301.03
Census Tract 9402.00 is now 0302.00
Census Tract 9403.00 is now 0303.00
Census Tract 9404.01 is now 0304.01
Census Tract 9404.03 is now 0304.03
Census Tract 9406.00 is now 0306.00
Census Tract 9407.00 is now 0304.02
Oneida County, New York (36065)
In Oneida County, the numbering of three tracts changed, and there is a geographic definition change that affects two tracts.
Census Tract 9400.00 is now 0248.00
Census Tract 9401.00 is now 0247.00
(2010) Census Tract 9402.00 forms a portion of (2011) tract 0249.00
Part of (2010) Census Tract 0230.00 forms a portion of (2011) tract 0249.00
Part of (2010) Census Tract 0230.00 is now (2011) tract 0230.00
Richmond County, New York (36085)
Census Tract 0089.00 merged into Census Tract 0097.00. The area merged into Census Tract 0097.00 is entirely water.