Social Explorer variables usually originate from Census datasets. Our variables are often computed from two or more Census variables. The following is a disclosure of our variable sources. Everything from the data source to the exact formula used to compute the variable is displayed. This document is generated automatically by a computer program that parses SAS code used to process the datasets, so there is no human intervention and no chance for typos or stale infomation to be presented. By looking at this document you can tell exactly what we did with the data to come up with the numbers being presented.


EXAMPLE:

Persons In group quarters
Data Source:  Census 1990, SF3
Variable:  P0170x19:  Persons In group quarters
Formula:  P0170x19 = P0170013 + P0170014;

Census Variables Used in the formula:
Variable Label Suppression
P0170013 In group quarters: Institutionalized persons none
P0170014 In group quarters: Other persons in group quarters none




Data Source:
Data sources are disclosed in the first line labeled Data Source:. This will tell you which dataset the variables came from. For example, it may say "Census 1990, SF3". This means data for this Social Explorer variable came from 1990 Census, Summary File 3. For more information about Summary Files and different datasets released by the Census Bureau, please visit
http://factfinder.census.gov, and
http://factfinder.census.gov/jsp/saff/SAFFInfo.jsp?_pageId=sp4_decennial


Variable name:
The Social Explorer variable is named and labeled here. In this example,
"Variable:    P0170x19:   Persons in Group Quarters".


Formula:  P0170x19 = P0170013 + P0170014;
This is the equation used to compute the Social Explorer variable P0170x19. The variables on the right side of the Formula, "P0170013 + P0170014;" are original variables from the data source, in this example Census 1990 SF3. The variable on the left side, "P0170x19" is the Social Explorer variable being computed, and that is the variable you see in the data we present. We also display information about each Census variable used in the fomula in the table right bellow, that way you don't have to look far for documentation to interpret the fomula. In this example we added variable P0170013 (In group quarters: Institutionalized persons) and P0170014 (In group quarters: Other persons in group quarters).



Variable Names Variable names are not arbitrarily chosen. The first set of numbers represents the Table Number within the Data Source, and the last three digits represent the Variable Number within the table. In the example above, P0170013, the first three numbers after P0 170 represent the Census table number and last three are the variable number within the table. This variable came from Table 170, variable number 13.

Other examples of variable names:
Census variable PC105055 comes from table 105, variable number 55.
Sometimes numbers are separatered by an underscore as in this example: Census variable T005_024 comes from Table 5, variable 24.


Suppression:
Suppression is a technique used by the Census Buerou in the past to hide certain data that would make it possible for individuals to be identified. This only affects areas with very small population counts, and was used only for Census years 1960, 1970 and 1980.

Social Explorer marks all values that were suppressed with a symbol and a link that breaks down exactly what and how much was suppressed. For 1970 and 1980 it was a very difficult task to preserve suppression information and keep track of suppression percentages for geographies that are split by other geographies and you essentially get Partial Suppression which is why we sometimes report that a certain percent of the data was suppressed but not the entire value. We also use allocation to fill in suppression if a small percentage of data were suppressed. You can read more details about the topic of suppression in documents listed bellow.

In 1990 and 2000, a new technique was used by the Census Buerou that made it possible to avoid suppressing data and at the same time protect individual identity of subjects.
Suppression is difficult to deal with because it causes things not to add up properly because some numbers are hidden so tables don't add up to totals as they are supposed to.

More on suppression is available here:
Suppression Documentation 1960, 1970 and 1980




Further Documentation is available here:
- Census 2000 Documentation
- Census 1990 Documentation
- Census 1980 Documentation
- Census 1970 Documentation
- Census 1960 Documentation
- Census 1950 Documentation
- Census 1940 Documentation





Social Explorer Variable Source Disclosure
 
Persons
Data Source: Census 1950
Variable: C008_001:  Persons
Formula: C008_001 = TOTMALE + TOTFEM;
note: C008_001 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTMALE 1950 Total Males none
TOTFEM 1950 Total Females none



 
Density (people per square mile)
Data Source:
Variable: density:  Density (people per square mile)
Formula: IF areal>0 THEN density=T001_001/areal; ELSE density=0;
note: density is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
density Density (people per square mile) none



 
Persons
Data Source: Census 1950
Variable: C008x001:  Persons
Formula: C008x001 = TOTMALE + TOTFEM;
note: C008x001 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTMALE 1950 Total Males none
TOTFEM 1950 Total Females none



 
Male
Data Source: Census 1950
Variable: C008_002:  Male
Formula: C008_002 = TOTMALE;
note: C008_002 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTMALE 1950 Total Males none



 
Female
Data Source: Census 1950
Variable: C008_020:  Female
Formula: C008_020 = TOTFEM;
note: C008_020 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTFEM 1950 Total Females none



 
Persons
Data Source: Census 1950
Variable: C008x001:  Persons
Formula: C008x001 = TOTMALE + TOTFEM;
note: C008x001 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTMALE 1950 Total Males none
TOTFEM 1950 Total Females none



 
Age under 5
Data Source: Census 1950
Variable: C008x002:  Age under 5
Formula: C008x002 = TOTM5 + TOTF5;
note: C008x002 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM5 1950 Age Under 5 Male none
TOTF5 1950 Age Under 5 Female none



 
Age 5-9
Data Source: Census 1950
Variable: C008x003:  Age 5-9
Formula: C008x003 = TOTM9 + TOTF9;
note: C008x003 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM9 1950 Age 5-9 Male none
TOTF9 1950 Age 5-9 Female none



 
Age 10-14
Data Source: Census 1950
Variable: C008x004:  Age 10-14
Formula: C008x004 = TOTM14 + TOTF14;
note: C008x004 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM14 1950 Age 10-14 Male none
TOTF14 1950 Age 10-14 Female none



 
Age 15-19
Data Source: Census 1950
Variable: C008x005:  Age 15-19
Formula: C008x005 = TOTM19 + TOTF19;
note: C008x005 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM19 1950 Age 15-19 Male none
TOTF19 1950 Age 15-19 Female none



 
Age 20-24
Data Source: Census 1950
Variable: C008x006:  Age 20-24
Formula: C008x006 = TOTM24 + TOTF24;
note: C008x006 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM24 1950 Age 20-24 Male none
TOTF24 1950 Age 20-24 Female none



 
Age 25-29
Data Source: Census 1950
Variable: C008x007:  Age 25-29
Formula: C008x007 = TOTM29 + TOTF29;
note: C008x007 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM29 1950 Age 25-29 Male none
TOTF29 1950 Age 25-29 Female none



 
Age 30-34
Data Source: Census 1950
Variable: C008x008:  Age 30-34
Formula: C008x008 = TOTM34 + TOTF34;
note: C008x008 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM34 1950 Age 30-34 Male none
TOTF34 1950 Age 30-34 Female none



 
Age 35-39
Data Source: Census 1950
Variable: C008x009:  Age 35-39
Formula: C008x009 = TOTM39 + TOTF39;
note: C008x009 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM39 1950 Age 35-39 Male none
TOTF39 1950 Age 35-39 Female none



 
Age 40-44
Data Source: Census 1950
Variable: C008x010:  Age 40-44
Formula: C008x010 = TOTM44 + TOTF44;
note: C008x010 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM44 1950 Age 40-44 Male none
TOTF44 1950 Age 40-44 Female none



 
Age 45-49
Data Source: Census 1950
Variable: C008x011:  Age 45-49
Formula: C008x011 = TOTM49 + TOTF49;
note: C008x011 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM49 1950 Age 45-49 Male none
TOTF49 1950 Age 45-49 Female none



 
Age 50-54
Data Source: Census 1950
Variable: C008x012:  Age 50-54
Formula: C008x012 = TOTM54 + TOTF54;
note: C008x012 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM54 1950 Age 50-54 Male none
TOTF54 1950 Age 50-54 Female none



 
Age 55-59
Data Source: Census 1950
Variable: C008x013:  Age 55-59
Formula: C008x013 = TOTM59 + TOTF59;
note: C008x013 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM59 1950 Age 55-59 Male none
TOTF59 1950 Age 55-59 Female none



 
Age 60-64
Data Source: Census 1950
Variable: C008x014:  Age 60-64
Formula: C008x014 = TOTM64 + TOTF64;
note: C008x014 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM64 1950 Age 60-64 Male none
TOTF64 1950 Age 60-64 Female none



 
Age 65-69
Data Source: Census 1950
Variable: C008x015:  Age 65-69
Formula: C008x015 = TOTM69 + TOTF69;
note: C008x015 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM69 1950 Age 65-69 Male none
TOTF69 1950 Age 65-69 Female none



 
Age 70-74
Data Source: Census 1950
Variable: C008x016:  Age 70-74
Formula: C008x016 = TOTM74 + TOTF74;
note: C008x016 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM74 1950 Age 70-74 Male none
TOTF74 1950 Age 70-74 Female none



 
Age 75-84
Data Source: Census 1950
Variable: C008x017:  Age 75-84
Formula: C008x017 = TOTM84 + TOTF84;
note: C008x017 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM84 1950 Age 75-84 Male none
TOTF84 1950 Age 75-84 Female none



 
Age 85+
Data Source: Census 1950
Variable: C008x018:  Age 85+
Formula: C008x018 = TOTM85 + TOTF85;
note: C008x018 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
TOTM85 1950 Age 85 And Over Male none
TOTF85 1950 Age 85 And Over Female none



 
Persons 14+
Data Source: Census 1950
Variable: C010x001:  Persons 14+
Formula: C010x001 = (AG14UPM + AG14UPF);
note: C010x001 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
AG14UPM 1950 Males 14 Years And Over none
AG14UPF 1950 Females 14 Years And Over none



 
Single
Data Source: Census 1950
Variable: C010x002:  Single
Formula: C010x002 = SINGM + SINGF;
note: C010x002 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
SINGM 1950 Single Male none
SINGF 1950 Single Female none



 
Married (includes Separated)
Data Source: Census 1950
Variable: C010x003:  Married (includes Separated)
Formula: C010x003 = MARRM + MARRF;
note: C010x003 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
MARRM 1950 Married Incl Separated Male none
MARRF 1950 Married Incl Separated Female none



 
Widowed/divorced
Data Source: Census 1950
Variable: C010x004:  Widowed/divorced
Formula: C010x004 = WIDM + WIDF;
note: C010x004 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
WIDM 1950 Widowed Or Divorced Male none
WIDF 1950 Widowed Or Divorced Female none



 
Persons 14+
Data Source: Census 1950
Variable: C011x001:  Persons 14+
Formula: C011x001 = (AG14UPM + AG14UPF);
note: C011x001 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
AG14UPM 1950 Males 14 Years And Over none
AG14UPF 1950 Females 14 Years And Over none



 
In Labor Force
Data Source: Census 1950
Variable: C011x002:  In Labor Force
Formula: C011x002 = (EMPM + UNEMPM) + (EMPF + UNEMPF);
note: C011x002 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPM 1950 Male Employed none
UNEMPM 1950 Male Unemployed none
EMPF 1950 Female Employed none
UNEMPF 1950 Female Unemployed none



 
Employed
Data Source: Census 1950
Variable: C011x003:  Employed
Formula: C011x003 = EMPM + EMPF;
note: C011x003 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPM 1950 Male Employed none
EMPF 1950 Female Employed none



 
Unemployed
Data Source: Census 1950
Variable: C011x008:  Unemployed
Formula: C011x008 = UNEMPM + UNEMPF;
note: C011x008 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
UNEMPM 1950 Male Unemployed none
UNEMPF 1950 Female Unemployed none



 
Employed
Data Source: Census 1950
Variable: C011x003:  Employed
Formula: C011x003 = EMPM + EMPF;
note: C011x003 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPM 1950 Male Employed none
EMPF 1950 Female Employed none



 
Private Wage or Salary
Data Source: Census 1950
Variable: C011x004:  Private Wage or Salary
Formula: C011x004 = EMPPRIM + EMPPRIF;
note: C011x004 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPPRIM 1950 Male Private Wage And Salary none
EMPPRIF 1950 Female Private Wage And Salary none



 
Government
Data Source: Census 1950
Variable: C011x005:  Government
Formula: C011x005 = EMPGOVM + EMPGOVF;
note: C011x005 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPGOVM 1950 Male Government none
EMPGOVF 1950 Female Government none



 
Self Employed
Data Source: Census 1950
Variable: C011x006:  Self Employed
Formula: C011x006 = EMPSELM + EMPSELF;
note: C011x006 is a Social Explorer variable computed by the formula.

Census Variables Used in the formula:
Variable Label Suppression
EMPSELM 1950 Male Self-Employed none