Contents
What are the geographic areas of the Census Bureau?
The Census Bureau creates and maintains geographic codes for many statistical geographic areas that are not covered by FIPS codes and GNIS codes. These geographic areas include census divisions, census regions, census tracts, block groups, census blocks and urban areas.
What does area tell us about a shape?
What is area? Area tells us the size of a shape or figure. It tells us the size of squares, rectangles, circles, triangles, other polygons, or any enclosed figure. In the real world it tells us the size of pieces of paper, computer screens, rooms in houses, baseball fields, towns, cities, countries, and so on.
How to calculate the size of an area?
Area = Length x Width Area = 7 cm x 6 cm = 42 cm 2 Area = Length x Width Area = 8 m x 2 m = 16 m 2
Are there geographic codes for smaller geographic areas?
Smaller geographic areas are codified to include codes for larger geographic areas within which they nest. There is no geographic hierarchy reflected in the codes. Varies depending on level of geography (ie states have 2-digit codes, counties have 5-digit codes and places have 7-digit codes).
How is census data different from public data?
Compared to their public use counterparts, the internal data files include more detailed geographic information, generally to the block level for the Decennial Census and census-tract level for surveys, as well as less restrictive top-coding.
How can I find the state, county, tract number?
Data.census.gov does not have an address search feature available. However, you can access geographic information, such as the state, county, tract number, block number, and block group number, about a particular address using the Census Geocoder. The Geocoder can be accessed at
Where can I find demographic data prior to 2005?
Data years prior to 2005 are for selected geographies in the United States and should be used with caution (and will require additional justification in the proposal). * The National Longitudinal Mortality Study (NLMS) is a unique research database based on a random sample of the non-institutionalized population of the United States.